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HISTERID BEETLES (COLEOPTERA: HISTERIDAE) OF LOUISIANA
Alexey K. Tishechkin
Department of Entomology
Louisiana State University
Baton Rouge, LA 70803
Updated February 2013

The list of the Louisiana Histeridae presented below is the result of sorting and identifying specimens preserved in the Louisiana State Arthropod Museum (LSAM), Baton Rouge, LA, a literature search, and screening of several North American beetle collections for records (see list below). It represents the first systematic faunistic inventory for this family undertaken in Louisiana. Most of the collecting activities were concentrated in several localities in a small number of Parishes, so this list will undoubtedly grow as additional records accumulate. The literature search was not exhaustive, and only recent revisions were checked for state records. Additional records can also be expected as additional collections elsewhere are searched. This version contains links to photomontages of many species, linked to "dorsal" and "ventral" following the name. Use the "back" button to toggle list and photos.
As this list has been originally developed as an internet document, it will be regularly edited and updated. Several projects, both formal and informal, which involve at least some collecting of the Histeridae in Louisiana, are currently under way. I invite any interested and/or informed person to contribute to our database. Detailed information on Louisiana histerids (localities, dates, collecting methods etc.) is available from the author upon the request.
Nomenclature primarily follows Mazur (1997). All the taxonomic categories (subfamilies, tribes, genera, subgenera, and species) are listed alphabetically. Information on institutional deposition is given parenthetically after each Parish name. Absence of this information indicates that all specimens for that Parish record are deposited in the LSAM. Institutional abbreviations are:
BYU - Monte L. Bean Life Science Museum, Brigham Young University, Provo, UT
CAS - California Academy of Sciences, San Francisco, CA
CNC - Canadian National Collection of Arthropods, Ottawa, ON
FMNH - Field Museum of Natural History, Chicago, IL
FSCA - Florida State Collection of Arthropods, Gainesville, FL
LSAM - Louisiana State Arthropod Museum, Baton Rouge, LA
LSUS - Louisiana State University, Shreveport, LA
PKC - P. Kovarik's private collection, Columbus, OH
RTC - R. Turnbow's private collection, Enterprise, AL
TAMU - Texas A&M University, College Station, TX
USNM - National Museum of Natural History, Smithsonian Institution, Washington, DC

Histeridae (Coleoptera) of Louisiana
Abraeinae: Abraeini
Chaetabraeus (Mazureus) chandleri Mazur, 1991
Dorsal
Distribution: Madison, St. Landry Parishes
Abraeinae: Acritini
Acritus (s.str.) acaroides Horn, 1873
Dorsal Ventral
Synonyms: Acritus sallei Erichson, 1834
Distribution: Grant (FMNH, LSAM), Jefferson (FMNH), St.Tammany, Webster, West Feliciana Parishes
Acritus (s.str.) attaphilus Wenzel, 1939
Dorsal
Distribution: Rapides (LSAM, SFES) Parish
Acritus (s.str.) exiguus (Erichson, 1834)
Dorsal Ventral
Synonyms: Abraeus exiguus Erichson, 1834
Abraeus acicularis J.E.LeConte, 1844
Abraeus obliquus J.E.LeConte, 1844
Acritus cribripennis Marseul, 1856
Acritus natchez Marseul, 1856
Acritus ellipticus Casey, 1916
Bacanius subdepressue Blatchley, 1922
Distribution: Ascension (FMNH), Caddo, Catahoula, East Baton Rouge, Iberville (FMNH), Madison, Orleans (FMNH), Rapides (FMNH), Sabine (BYU, LSAM), St.Charles (FMNH), Webster, West Feliciana Parishes
Acritus (Pycnacritus) discus J. L. LeConte, 1853
Dorsal
Synonyms: Acritus repletus Casey, 1916
Acritus sternalis Casey, 1916
Distribution: St. Tammany Parish
Aeletes (Acritinus) floridae (Marseul, 1862)
Dorsal Ventral
Synonym: Acritus floridae Marseul, 1862
Distribution: Bossier (TAMU), Calcasieu, Catahoula, Claiborne, East Feliciana, Grant, Jefferson (FMNH), Natchitoches, Rapides, St. Tammany, West Feliciana Parishes
Aeletes (s.str.) politus (J. L. LeConte, 1853)
Dorsal Ventral
Synonyms: Acritus politus J. L. LeConte, 1853
Abraeus laevigatus: J. L. LeConte, 1853
Distribution: Bossier (TAMU), Calcasieu, Grant, Jefferson (FMNH), Madison, Natchitoches, St. Tammany, West Feliciana Parishes
Aeletes (s.str.) simplex (J. L. LeConte, 1844)
Dorsal Ventral
Synonyms: Abraeus simplex J. L. LeConte, 1844
Acritus simplex: J. L. LeConte, 1853
Acritus acupictus Marseul, 1856
Distribution: East Feliciana, Natchitoches, St. Tammany, Webster, West Feliciana Parishes
Abraeinae: Plegaderini
Plegaderus (s.str.) barbelini Marseul, 1862
Dorsal
Synonyms: Plegaderus pusillus: J. E. LeConte, 1845
Plegaderus erichsoni J. L. LeConte, 1863
Distribution: Allen (FMNH), East Feliciana, Natchitoches, West Feliciana Parishes
Plegaderus (s.str.) transversus (Say, 1825)
Dorsal Ventral
Synonym: Hister transversus Say, 1825
Distribution: Allen (FMNH), Claiborne, DeSoto, East Baton Rouge, East Feliciana, Natchitoches, Rapides (FMNH), West Feliciana Parishes
Dendrophilinae: Bacaniini
Bacanius (s.str.) punctiformis (J. L. LeConte, 1853)
Dorsal
Synonym: Abraeus punctiformis J. L. LeConte, 1853
Distribution: Caddo, Calcasieu, Concordia, Grant, East Baton Rouge, Natchitoches (TAMU), Sabine (BYU), St.Charles (FMNH), St.Landry, Tangipachoa, Vernon, Webster, West Feliciana Parishes
Bacanius (s.str.) tantillus J. L. LeConte, 1853
Dorsal Ventral
Distribution: East Feliciana, West Feliciana Parishes
Dendrophilinae: Dendrophilini
Dendrophilus (s.str.) opacus Ross, 1940
Dorsal
Distribution: St. Landry Parish
Dendrophilus (s.str) punctatus (Herbst, 1792)
Dorsal
Synonyms: Hister punctatus Herbst, 1792
Hister corticalis Paykull, 1798
Hister punctulatus Say, 1825
Dendrophilus cooperi Stephens, 1830
Dendrophilus punctidorsum Marseul, 1862
Hister sahlbergi Marseul, 1862. 
Distribution: East Baton Rouge, Natchitoches, St. Landry Parishes.
Note: This species is native to Europe and known as adventive in the eastern United States. Apparently, the LA records are the most southwestern known records in the US.
Dendrophilinae: Paromalini
Carcinops (s.str.) pumilio (Erichson, 1834)
Dorsal Ventral
Synonyms: Paromalus pumilio Erichson, 1834
Dendrophilus quatuordecimstriatus Stephens, 1835
Dendrophilus pumilio: Dejean, 1837
Dendrophilus nanus Dejean, 1837
Hister nanus J. E. LeConte, 1845
Phelister nanus: Marseul, 1857
Carcinops quatuordecimstriatus: Wollaston, 1864
Epierus krujanensis Mader, 1921
Distribution: East Baton Rouge, St. Mary Parishes
Paromalus (s.str.) bistriatus Erichson, 1834
Dorsal Ventral
Synonyms: Isolomalus bistriatus: Lewis, 1907
Distribution: West Feliciana Parish
Paromalus (s.str.) seeversi (Wenzel, 1936)
Dorsal Ventral
Synonym: Isolomalus seeeversi Weznel, 1936
Distribution: Natchitoches Parish
Paromalus (s.str.) seminulum Erichson, 1834
Dorsal Ventral
Synonyms: Isolomalus seminulum: Lewis, 1907
Isolomalus ovulatus Casey, 1916
Distribution: Bienville, Caddo, Calcasieu, Catahoula, Concordia, Evangeline, Grant (CNC, LSAM), East Baton Rouge, Iberville (FMNH), Jefferson (FMNH), Livingston, Madison, Natchitoches, Pointe Coupee, Rapides (FSAC), St. Charles (FMNH), St. Helena (BYU, LSAM), St. James, West Feliciana, Winn Parishes
Platylomalus aequalis (Say, 1825)
Dorsal Ventral
Synonyms: Hister aequalis Melsheimer, 1806
Hister aequalis Say, 1825
Paromalus affinis J. E. LeConte, 1844
Paromalus aequalis J. E. LeConte, 1845
Paromalus inexaratus Dejean, 1837
Paromalus estriatus J. E. LeConte, 1860
Paromalus inops Marseul, 1862
Distribution: East Baton Rouge, Iberville, Jefferson, Pointe Coupee, West Feliciana Parishes
Xestipyge conjunctum (Say, 1825) 
Dorsal Ventral
Synonyms: Hister conjunctus Say, 1825 
Abraeus erythrocerus Dejean, 1837 
Paromalus conjunctum (Say, 1825) 
Carcinops conjunctus (Say, 1825) 
Distribution: Evangeline, Natchitoches, St. Landry, West Feliciana Parishes
Xestipyge geminatum (J. E. LeConte, 1860)
Dorsal Ventral
Synonyms: Carcinops geminatus J.E.LeConte, 1860
Paromalus geminatus: Horn, 1863
Distribution: Calcasieu, East Baton Rouge, Grant, Natchitoches, St. Tammany, West Feliciana Parishes
Haeteriinae
Pinaxister setiger (J. E. LeConte, 1860)
Dorsal
Synonyms: Hetaerius setiger J. E. LeConte, 1860
Echinodes setiger: Zimmerman in J. E. LeConte, 1869
Mroczkowskiella setigera: Mazur, 1984
Distribution: West Feliciana Parish
Terapus n. sp.
Dorsal
Distribution: West Feliciana Parish
Note: This is an undescribed species also known from many specimens collected in northern Florida (Peck and Thomas, 1998; http://www.ifas.ufl.edu/~entweb/intro44.htm).
Histerinae: Exosternini
Baconia aeneomicans (Horn, 1873)
Dorsal Ventral
Synonyms: Hister aeneomicans Horn, 1873
Phelister aeneomicans: Schmidt, 1884
Distribution: Calcasieu, Catahoula, Grant, East Baton Rouge, St. Tammany, West Feliciana Parishes
Baconia venusta (J. E. LeConte, 1845)
Dorsal
Synonyms: Platysoma venustum Dejean, 1837
Platysoma venustum J. E. LeConte, 1845
Hister venustus: J. L. LeConte, 1851
Phelister venustus: Marseul, 1853
Phelister venustulus Marseul, 1862
Distribution: Allen (SFES), East Baton Rouge, Natchitoches Parishes
Phelister haemorrhous (Marseul, 1853)
Dorsal
Distribution: East Baton Rouge, Iberville (FSAC, LSAM) Parishes
Synonyms: Phelister egenus Marseul, 1853
Dendrophilus egenus Dejean, 1837
Phelister mobiliensis Casey, 1916
Dorsal
Distribution: Calcasieu, East Baton Rouge Parishes
Phelister subrotundus (Say, 1825)
Dorsal Ventral
Synonyms: Hister subrotundus Melsheimer, 1806
Hister subrotundus Say, 1825
Dendrophilus granarius Dejean, 1837
Distribution: Bienville, Iberville, St. Landry, West Feliciana Parishes
Phelister vernus (Say, 1825)
Dorsal Ventral
Synonyms: Hister vernus Say, 1825
Dendrophilus pedicularis Dejean, 1837
Phelister saunieri Marseul, 1861
Distribution: Calcasieu, East Carrol, Grant (FMNH), Jefferson (FMNH), St.Charles (FMNH), West Feliciana Parishes
Note: In strict sense, the species was not recorded in East Carrol Parish. LSAM has a specimen from Pittman Island, Issaguena Co., MS. But, it seems reasonable to consider this record as East Carrol Parish record as Pittman Island is almost completely surrounded by Louisiana territory.
Tribalister striatellus Fall, 1917
Dorsal
Distribution: West Feliciana Parish
Histerinae: Histerini
Atholus minutus Ross, 1940
Distribution: DeSoto, Grant (FMNH), Natchitoches, Webster Parishes
Atholus nubilus (J. L. LeConte, 1859)
Synonyms: Hister nubilis J. L. LeConte, 1859
Hister truncatisternum Lewis, 1888
Atholus truncatisternum: Mazur, 1984
Hister abducens Casey, 1916
Atholus abducens: Mazur, 1984
Hister diffractus Casey, 1916
Atholus diffractus: Mazur, 1984
Hister fluviatilis Casey, 1916
Atholus fluviatilis: Mazur, 1984
Hister laevicauda Casey, 1916
Atholus laevicauda: Mazur, 1984
Hister laevicaudoides Casey, 1916
Atholus laevicaudoides: Mazur, 1984
Hister pollutus Casey, 1916
Atholus pollutus: Mazur, 1984
Hister vestigialis Casey, 1916
Atholus vestigialis: Mazur, 1984
Distribution: Bienville, Bossier, E Baton Rouge, Natchitoches Parishes
Atholus sedecimstriatus (Say, 1825)
Dorsal Ventral
Synonyms: Hister sedecimstriatus Say, 1825
Hister exaratus Marseul, 1857
Distribution: West Feliciana Parish
Atholus sp.
Dorsal Ventral
Distribution: West Feliciana Parish
Note: Tentative identification of this species is A. relictus (Marseul, 1870). It is based on its external similarity to Palearctic species A. corvinus (Germar), which was reported for North America in XIX century, the record subsequently attributed to A. relictus (see synonymic notes in Mazur 1997).
Hister abbreviatus Fabricius, 1775
Dorsal Ventral
Synonyms: Hister punctatostriatus Melsheimer, 1806
Hister striatopunctatus Dejean, 1821
Hister bifidus Say, 1825
Hister crenicollis Flach, 1886
Hister coloradensis Casey, 1925
Distribution: Ascension (FMNH), Caddo, Calcasieu (CNC, LSAM), East Baton Rouge, Grant, Jefferson (FMNH), Madison (USNM), Natchitoches, Rapides (CNC), St.Charles (FMNH), St.John, St.Tammany, Tensas Parishes
Hister coenosus Erichson, 1834
Dorsal Ventral
Synonyms: Hister decisus J. E. LeConte, 1844
Hister panamensis Marseul, 1854
Hister granadensis J. E. LeConte, 1860
Hister granadius Marseul, 1862
Distribution: Bienville, Caddo (CAS, Caterino 1999b), Calcasieu (CNC), Cameron (LSAM, USNM [Caterino 1999b]), Catahoula, East Baton Rouge, Iberia, Iberville (FSAC, LSAM), Livingston, Madison (USNM), Orleans (CAS, Caterino 1999b), Natchitoches, Rapides, St.Landry, St.Tammany (LSAM, USNM, Caterino 1999), West Feliciana Parishes
Hister defectus J. E. LeConte, 1860
Dorsal
Synonym: Hister permixtus Zimmerman in J. E. LeConte, 1869
Distribution: Grant (PKC, Caterino 1999a), Natchitoches, West Feliciana Parishes
Hister depurator Say, 1825
Dorsal
Synonyms: Hister unicolor: Melsheimer, 1806
Hister anthracinus Sturm, 1826
Hister nigrita Dejean, 1837
Hister paykulli Kirby, 1837
Hister spretus J. E. LeConte, 1844
Hister circinans Casey, 1916
Margarinotus depurator: Hatch, 1962
Distribution: Bossier, East Baton Rouge, Grant, St.Tammany, Webster Parishes
Hister dispar J. E. LeConte, 1844
Dorsal Ventral
Synonyms: Hister dissimilis Marseul, 1862
Hister hospitus J. E. LeConte, 1860
Paralister dispar: Bradley, 1943
Distribution: Calcasieu, East Carrol, Iberville, West Feliciana Parishes
Note: For East Carrol Parish record (3 specimens) - see Note under Phelister vernus
Hister incertus Marseul, 1825
Synonyms: Hister debilicinus Casey, 1924
Distribution: Cameron (LSAM and TAMU) and West Feliciana Parishes
Note: Taxonomic and distributional status of this species and a closely related H. paykulli Kirby, 1837, is not completely settled. The latter species was recently resurrected from the synonymy with H. depurator (Mazur 1997) by Bousquet and Laplante (2006). According to these authors, the species differ by slight, but consistent details of body shape and aedeagus structure. Also, their known distribution is widely allopatric: H. incertus is primarily south-eastern species known from Florida to Texas and Pennsylvania and New York, while H. paykulli is known only from Canadian Prairie region (Mazur 1997, Bousquet & Laplante 2006). Unfortunately, Bousquet and Laplante (2006) did not provide comparative illustrations of H. incertus, and I was not able to study specimens of true H. paykulli, so it is impossible for me to be sure about the differences observed in the studied specimens of H. incertus in a broad sense. Most of male specimens studied (from Florida to Texas and Oklahoma, including the male from Cameron Parish) have similarly structured aedeagi, which are consistently shorter, more robust and with broader lateral processes than illustrated for H. paykulli. On the other side, the aedeagus of the single male from W Feliciana Parish corresponds well with the illustration for H. paykulli in Bousquet and Laplante (2006). However, at the current level of knowledge and my expertise, I’m not confident to call it H. paykulli and list specimens from both localities under H. incertus.
Hister indistinctus Say, 1825
Dorsal
Synonyms: Hister debilicinus Casey, 1924
Distribution: Allen (FMNH, FSCA [Caterino 1999a], SFES, LSAM), Calcasieu, Grant, Natchitoches, Rapides (FMNH, FSCA [Caterino 1999a], SFES), West Feliciana Parishes
Margarinotus (Promethister) marginicollis (J. E. LeConte, 1845)
Dorsal Ventral
Synonyms: Hister marginicollis Dejean, 1821
Hister marginicollis J.E.LeConte, 1845
Hister sinuosus Lewis, 1900
Margarinotus sinuosu : Wenzel, 1944
Distribution: West Feliciana Parish
Margarinotus (Promethister) sp. 
Dorsal
Distribution: Natchitoches Parish
Note: Most probably this is an undescribed species.  One male was collected during March 2001 at Red Bluff Campground in Kisatchie National Forest.  Subsequently, several specimens from from Pulaski Co., AR, Sabine Co., TX, and Latimer Co., OK were studied.  All specimens were collected using flight intercept traps.  Some additional material needs to be studied to be sure of the status of this species before a description is published.
Margarinotus (Ptomister) stygicus (J. E. LeConte, 1845)
Dorsal Ventral
Synonyms: Hister stygicus Dejean, 1821
Hister stygicus J. E. LeConte, 1845
                Hister jaquesi Hatch, 1929
Distribution: West Feliciana Parish
Merohister arboricavi Johnson, 1991
Dorsal
Synonyms: Hister grandis Wenzel, 1939
Merohister grandis: Mazur, 1984
Distribution: Natchitoches Parish
Merohister osculatus (Blatchley, 1910)
Dorsal
Synonyms: Hister osculatus Blatchley, 1910
Hister puncticollis Schaeffer, 1912
Paralister osculatus: Bradley, 1943
Distribution: Grant Parish
Spilodiscus gloveri (Horn, 1870)
Dorsal
Synonyms: Hister gloveri Horn, 1870
Distribution: Grant (CAS [Caterino 1998], FMNH), Natchitoches, Union, Webster Parishes
Histerinae: Hololeptini
Hololepta (s.str.) aequalis Say, 1825
Dorsal Ventral
Synonyms: Hololepta fossularis Say, 1825
Hololepta quadridentata: Say, 1825
Holoepta bifoveolata Dejean, 1837
Distribution: East Baton Rouge, Iberville (FMNH), Pointe Coupee Parishes
Hololepta (s.str.) lucida J. E. LeConte, 1845
Dorsal Ventral
Synonyms: Hololepta lucida Dejean, 1837
Hololepta lucifera Marseul, 1862
Distribution: West Feliciana Parish
Hololepta (Leionota) quadridentata (Olivier, 1789)
Dorsal
Synonyms: Hister quadridentatus Olivier, 1789
Hister surinamensis Herbst, 1792
Hololepta flagellata Kirby, 1818
Hololepta platysma Erichson, 1834
Leionota quadridentata: Dejean, 1837
Lioderma flagellata: Marseul, 1857
Lioderma quadridentata: Marseul, 1860
Distribution: Iberville Parish (FMNH)
Histerinae: Platysomatini
Eblisia carolina (Paykull, 1811)
Dorsal Ventral
Synonyms: Hister carolinus Paykull, 1811
Hister sordidus Say, 1825
Platysoma carolinum: Erichson, 1834
Hister cinnamomeus White, 1846
Eurilister carolinus: Bickhardt, 1920
Distribution: Caddo, Calcasieu, Catahoula, Concordia, East Baton Rouge, East Carrol, East Feliciana, Iberville (RHT), Jefferson (FMNH), Evangeline, Iberville, Livingston, Natchitoches, Pointe Coupee, Rapides (CNC), St.Charles (FMNH), West Feliciana, Winn Parishes
Note: For East Carrol Parish record (1 specimen) - see Note under Phelister vernus. Unfortunately, taxonomy and nomenclature in the Platysomatini always has been unstable, and several major, sometimes not consistent rearrangements were made as recently as in the 1980-90s (see Bousquet & Laplante 1999, Mazur 1984, 1997, 1999). I'm following the recent nomenclature and generic/subgeneric status of Bousquet & Laplante (1999, 2006) and Mazur (1999).

Eblisia nigra Bousquet & Laplante, 2006

Dorsal

Distribution: Calcasieu, E Baton Rouge, West Feliciana Parishes

Platysoma (Cylister) coarctatum  (J. E. LeConte, 1844)

Dorsal Ventral

Synonyms:  Hister coarctatus J. E. LeConte, 1844
Cylistosoma coarctatum: Lewis, 1905
Cylistix coarctatum: Mazur, 1997
Distribution: Natchitoches, Rapides Parishes
Platysoma (Cylister) parallelum (Say, 1825)
Dorsal Ventral
Synonyms: Hister paralellus Say, 1825
Platysoma heydeni Flach, 1886
Cylistosoma paralellum: Lewis, 1905
Platysoma quadrifera Casey, 1916
Cylistix paralellum: Mazur, 1997
Distribution: Allen (SFES), DeSoto, East Baton Rouge, East Feliciana, Grant (FMNH), LaSalle (SFES), Natchitoches, Rapides (FMNH, SFES, LSAM), St.Charles (FMNH), West Feliciana Parishes
Platysoma (Cylistus) attenuatum J. E. LeConte, 1844
Synonyms: Hister elongatus: Palisot de Beauvois, 1805
Hister attenuatus: Horn, 1873
Platysoma elongatum: Gemminger & Harold, 1868
Cylistix attenuatum: Schmidt, 1884
Distribution: Allen (FMNH, LSAM, SFES), East Feliciana, LaSalle (SFES), Rapides (SFES, LSAM) Parishes
Platysoma (Cylistus) cylindricum (Palisot de Beauvois, 1805)
Dorsal Ventral
Synonyms: Hister cylindricus Palisot de Beauvois, 1805
Cylistus cylindricus: Dejean, 1837
Cylistix cylindrica: Marseul, 1857
Cylistix parvula Casey, 1924
Distribution: Allen (SFES), DeSoto, East Feliciana, Rapides (SFES, LSAM) Parishes
Platysoma (s.str.) aequum (J. L. LeConte, 1863)
Dorsal
Synonyms:  Hister aequus J. L. LeConte, 1863 
Hister frontalis Say, 1825 
Distribution: Allen (SFES), Natchitoches Parishes
Platysoma (s.str.) aurelianum (Horn, 1873)
Dorsal Ventral
Synonyms: Hister aurelianus Horn, 1873
Platysoma leconti: Mazur, 1997
Distribution: East Baton Rouge, Rapides (LSAM, FSCA), Orleans (type locality), West Feliciana Parishes. 
Platysoma (s.str.) leconti Marseul, 1853
Dorsal Ventral
Synonyms: Hister glabratus: Melsheimer, 1806
Hister planus: Melsheimer, 1806
Hololepta depressa var. gamma: Paykul, 1811
Platysoma depressum: J. E. LeConte, 1845
Platysoma lecontei: Marseul, 1862
Hister lecontei: Horn, 1873
Platysoma tabella Casey, 1893
Platysoma pinorum Casey, 1916
Distribution: Caddo, Calcasieu, Concordia (CNC, LSAM), East Baton Rouge, Iberville (FMNH, LSAM), Jackson, Jefferson (FMNH), Livingston, St.Charles (FMNH), Webster, West Feliciana Parishes
Onthophilinae
Onthophilus alternatus (Say, 1825)
Dorsal
Synonyms: Hister sulcatus: Melsheimer, 1806
Hister alternatus Say, 1825
Onthophilus costatus Dejean, 1837
Onthophilus alternans: Mazur, 1984
Distribution: Bossier, Natchitoches, Rapides (CNC, Helava 1978) Parishes 
Onthophilus deflectus Helava, 1978
Dorsal
Distribution: East Baton Rouge, Evangeline, Madison, Natchitoches, St. Landry, Webster, West Feliciana Parishes
Onthophilus kirni Ross, 1944
Dorsal
Distribution: Claiborne, DeSoto, Grant (FMNH), Morehouse, Natchitoches, Ouachita, Union, Webster, Winn Parishes
Onthophilus nodatus J. E. LeConte, 1844
Dorsal
Synonyms: Onthophilus alternans var. nodatus: Horn, 1873
Distribution: Bossier, East Baton Rouge, East Feliciana, Grant, Natchitoches, Rapides (CNC), Webster, West Feliciana Parishes
Onthophilus pluricostatus J. E. LeConte, 1844
Dorsal Ventral
Synonyms: Onthophilus alternans var. pluricostatus: Horn, 1873
Distribution: East Feliciana Parish (FMNH, TAMU)
Saprininae
Euspilotus (Hesperosaprinus) assimilis (Paykull, 1811)
Dorsal Ventral
Synonyms: Hister assimilis Paykull, 1811
Hister extraneus Illiger, 1807
Saprinus assimilis: Erichson, 1834
Saprinus assimilis ab. semisculus Hatch, 1929
Distribution: Bienville, Bossier, Caddo, Calcasieu (CNC, LSAM), Catahoula, Concordia (CNC), East Baton Rouge, East Feliciana, Grant, Lincoln, Livingston, Madison (LSUS, USNM), Natchitoches, Pointe Coupee, Rapides (CNC, LSAM), St. John, St.Tammany, Vermilion, Vernon, Webster, West Feliciana, Winn (LSUS) Parishes
Euspilotus (Hesperosaprinus) azurescens (Marseul, 1855)
Dorsal
Synonyms: Hister bonariensis Dejean, 1837
Hister nigrita: Blanchard, 1843
Saprinus nigrita: Erichson, 1843
Saprinus azurescens Marseul, 1855
Saprinus aeneicollis Marseul, 1855
Saprinus bonariensis Marseul, 1855
Saprinus violaceipennis Marseul, 1855
Epierus bonariensis: Marseul, 1877
Euspilotus violaceipennis: Dégallier, 1981
Euspilotus bonariensis: Dégallier, 1981
Distribution: East Baton Rouge, Natchitoches Parishes
Euspilotus (Hesperosaprinus) placidus (Erichson, 1834)
Dorsal
Synonyms: Saprinus placidus Erichson, 1834
Saprinus discors J. E. LeConte, 1860
Saprinus latubris J. E. LeConte, 1860
Saprinus oviformis Blatchley, 1910
Distribution: Grant, Natchitoches, Winn (LSUS) Parishes
Euspilotus (Hesperosaprinus) rossi (Wenzel, 1939)
Dorsal
Synonyms: Saprinus rossi Wenzel
Distribution: East Baton Rouge Parish
Euspilotus (Hesperosaprinus) simulatus (Blatchley, 1910)
Dorsal
Synonyms: Saprinus simulatus Blatchley, 1910
Euspilotus assimilis: Wenzel, 1939
Distribution: Grant, West Feliciana Parishes
Note: Identification is somewhat doubtful and is based on comparison of external morphology of the LA specimen with specimens in the CNC matched with Blatchley's type by S. LaPlante
Euspilotus (Hesperosaprinus) sp. 1
Dorsal
Distribution: Bossier, Calcasieu (CNC), Concordia (CNC), East Baton Rouge, East Feliciana, Grant, Natchitoches, Pointe Coupee, Rapides (CNC), St. Landry, St. Tammany, Webster, Winn (LSUS), West Feliciana Parishes
Note: Systematics and nomenclature for the North American Euspilotus species is poorly developed, and there are several undescribed species and tentative synonyms in the genus. As a result, identification of many species is problematic resulting in unnamed numbered species. Tentative identification for this species is E. auctus (Schmidt, 1890), however, exact relations of superficially similar SE US specimens with Mexican E. auctus and some other Central American specimens remain unresolved.
Euspilotus (Hesperosaprinus) sp. 2
Dorsal Ventral
Distribution: West Feliciana, Winn (LSUS) Parishes
Note: Tentative identification for this species is E. conformis (J. E. LeConte, 1890).
Euspilotus (Neosaprinus) sp.
Distribution: Caddo, St. Tammany Parishes
Geomysaprinus (s.str.) goffi Ross, 1944
Dorsal
Distribution: Claiborne, Natchitoches Parish
Geomysaprinus (Priscosaprinus) formicus (Hinton, 1935)
Synonym: Saprinus formicus Hinton, 1935
Distribution: Bienville (FMNH), Natchitoches , Rapides (Moser 1963) Parishes
Note: The situation with the systematicsof Geomysaprinus (Priscosaprinus) is the same as with Euspilotus [see Note under Euspilotus (Hesperosaprinus) sp.]. Identification of this species as G. formicus  is somewhat doubtful due to incomplete knowledge of the genus and distributional disjunction between the type locality, Tejupilco in SC Mexico, and Louisiana. Specimens from Rapides Parish were originally reported as "a new species" of Saprinus "being described by R. L. Wenzel" (Moser 1963), but they probably belong to G. formicus. I did not see any Rapides Parish specimens during my visit to the FMNH in 1998, but did see there specimens from several localities in Bienville Parish.
Geomysaprinus triangulifer  (Marseul, 1855)

Dorsal Ventral
Synonyms: Saprinus triangulifer Marseul, 1855
Saprinus subaeratus Casey, 1893
Geomysaprinus subaeratus: Mazur, 1984
Distribution: Calcasieu, Iberia, La Fourche, Natchitoches, Pointe Coupee, St. Landry, St. Tammany, West Feliciana Parishes
Geomysaprinus (Priscosaprinus) sp. # 1
Dorsal
Distribution: Grant, East Carrol, Pointe Coupee, St.Tammany, West Feliciana Parishes
Note: For East Carrol Parish record (1 specimen) - see Note under Phelister vernus
Geomysaprinus (Priscosaprinus) sp. # 2
Dorsal
Distribution: Grant, West Feliciana Parishes
Geomysaprinus (Priscosaprinus) sp # 3

Dorsal

Distribution: Natchitoches Parish

Geomysaprinus (Priscosaprinus) sp # 4

Dorsal

Distribution: Natchitoches Parish

Hypocaccus (s.str.) bigener (J. E. LeConte, 1844)
Dorsal
Synonyms: Hister sphaeroides Dejean, 1837
Saprinus bigener J. E. LeConte, 1844
Saprinus sphaeroides J. E. LeConte, 1845
Hypocaccus sphaeroides: Lewis, 1905
Saprinus impunctellus Casey, 1893
Saprinus lakensis Blatchley, 1910
Saprinus seminitens:Blatchley, 1910
Saprinus illinoensis Wolcott, 1912
Saprinus eriensis Hatch, 1929
Saprinus ontarioensis Hatch, 1929
Saprinus michiganensis Hatch, 1929
Distribution: Cameron Parish
Hypocaccus (s.str.) brasiliensis (Paykull, 1811)
Dorsal
Synonyms: Hister brasiliensis Paykull, 1811
Saprinus apricarius Erichson, 1834
Saprinus dentipes Marseul,1855
Saprinus bistrigifrons Marseul, 1855
Saprinus laxatus Casey, 1893
Saprinus permixtus LeConte,1878
Saprinus piscarius Blackburn, 1903
Hypocaccus apricarius: Ragusa, 1892
Hypocaccus bistrigifrons: Lewis, 1905
Hypocaccus dentipes: Lewis, 1905
Hypocaccus laxatus: Lewis, 1905
Hypocaccus permixtus: Mazur, 1904
Hypocaccus piscarius: Lewis, 1905
Distribution: Jefferson Parish
Hypocaccus (s.str.) fitchi (Marseul, 1862)
Dorsal
Synonyms: Saprinus fitchi: Marseul, 1862
Saprinus fitchi: Horn, 1873 ; Blatchley, 1910.
Saprinus ludovicianus Casey, 1924
Hypocaccus ludovicianus: Mazur, 1984
Distribution: St. Tammany Parish (type locality of S. ludovicianus Casey)
Hypocaccus (s.str.) fraternus (Say, 1825)
Dorsal
Synonyms: Hister fraternus Say, 1825
Hister mancus Say, 1825
Hister aciculatus Dejean, 1837
Saprinus fraternus: J. E. LeConte, 1845
Saprinus mancus: J. E. LeConte, 1845
Hypocaccus mancus: Lewis, 1905
Distribution: East Feliciana, Natchitoches, West Feliciana Parishes
Hypocaccus (s.str.) patruelis (J. E. LeConte, 1845)
Dorsal
Synonyms: Hister patruelis Dejean, 1837
Saprinus patruelis J. E. LeConte, 1845
Saprinus javeti Marseul, 1855
Distribution: Caddo (FMNH), Cameron, St. Charles (FMNH), West Feliciana Parishes
Hypocaccus (s.str.) seminitens (J. E. LeConte, 1863)
Dorsal
Synonyms: Saprinus seminitens J. E. LeConte, 1863
Saprinus divulsus Casey, 1916
Hypocaccus divulsus: Mazur, 1984
Distribution: Caddo Parish (FMNH)
Hypocaccus (s.str.) sparsus (Casey, 1916)
Dorsal
Synonyms: Saprinus sparsus Casey, 1916
Distribution: Cameron Parish (FMNH)
Saprinus impressus J. E. LeConte, 1844
Dorsal
Synonym: Saprinus piceus: J. E. LeConte, 1844
Saprinus infaustus: J. E. LeConte, 1852
Distribution: Madison (USNM) Parish
Saprinus lugens Erichson, 1834
Dorsal
Synonyms: Hister californicus Dejean
Hister mexicanus Dejean
Saprinus californicus Mannerheim
Saprinus consimilis Walker
Saprinus lugubris Gemminger and Harold
Saprinus pseudodetersus Dahlgren
Distribution: Madison (USNM, LSAM) Parish
Saprinus (s.str.) pensylvanicus (Paykull, 1811)
Dorsal
Synonyms: Hister pensylvanicus Paykull, 1811
Saprinus pennsylvanicus: J.E.LeConte, 1845
Saprinus pennsylvanicus ab. profusoides Hatch, 1929
Distribution: Jefferson, Iberville Parishes
Saprinus (s.str.) profusus Casey, 1893
Dorsal
Synonym: Saprinus pensylvanicus: Hatch, 1929
Distribution: Cameron, Madison (USNM, LSAM) Parishes
Xerosaprinus (s.str.) orbicularis (Marseul, 1855)
Dorsal
Synonyms: Saprinus orbicularis Marseul, 1855
Saprinus fimbriatus var. orbicularis:Horn, 1873
Distribution: Bienville, Cameron, Sabine Parishes
Tribalinae
Caerosternus americanus (J. E. LeConte, 1844)
Dorsal Ventral
Synonyms: Abraeus erythrocerus Dejean, 1837
Tribalus americanus J. E. LeConte, 1844
Tribalus marginifer Marseul, 1862
Distribution: Calcasieu, Catahoula, Natchitoches, Pointe Coupee, West Feliciana Parishes
Epierus pulicarius Erichson, 1834
Dorsal Ventral
Synonyms: Dendrophilus pulicarius Dejean, 1837
Epierus minor J. E. LeConte, 1844
Epierus novellus Zimmermann in J. E. LeConte, 1869
Epierus oblongus Casey, 1916
Distribution: Acadia, Caddo, Calcasieu, Caldwell, Concordia, East Baton Rouge, East Feliciana, Grant, Jefferson (FMNH), Livingston, Natchitoches, Pointe Coupee, Rapides (FSAC), St. Charles (FMNH), St. Landry, St. Tammany (FMNH, LSAM), Webster, West Feliciana, Vernon Parishes
Epierus regularis (Palisot de Beauvois, 1805)
Dorsal
Synonyms: Hister regularis Palisot de Beauvois, 1805
Hister flavicornis: Melsheimer, 1806
Hister nigrellus Say, 1825
Epierus nigrellus: J. E. LeConte, 1845
Epierus floridanus Casey, 1916
Distribution: Caddo, Calcasieu, East Baton Rouge, Rapides (CNC, FSAC, LSAM), St. Helena (BYU), West Feliciana Parishes
Plagiogramma subtropica (Casey, 1893)
Synonyms: Epierus subtropicus Casey, 1893
Epierus ovalis Casey, 1916
Distribution: St. Landry Parish
Pseudepierus gentilis (Horn, 1883)
Dorsal
Synonyms: Hister gentilis Horn, 1883
Epierus wickhami Lewis, 1898
Phelister gentilis: Lewis, 1905
Paromalus quatuordecimstriatus: Blatchley, 1910
Epierus obesulus Casey, 1916
Epierus duplicatus Casey, 1916
Distribution: Jefferson Parish (FMNH)


Acknowledgements
I would like to express my sincere gratitude to the following colleagues who have shared with me their knowledge and expertise on North American histerids: M. S. Caterino (Santa Barbara, CA), P. W. Kovarik (Columbus, OH), S. Laplante (Ottawa, ON), and late R. L. Wenzel (Chicago, IL). Special thanks are due to A. R. Cline (Sacramento, CA), M. B. Connior (El Dorado, AR) and S. T. Dash (El Paso, TX) for their important histerid collecting efforts and to C. E. Carlton (LSAM) for maintaining and updating this webpage.


Literature cited
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Peck, S. B., and M. C. Thomas. 1998. A distributional checklist of the beetles (Coleoptera) of Florida. Arhtropods of Florida and Neighboring Land Areas. Vol. 16. Florida Dept. of Agriculture, Gainesville, FL.