Family Hydrophilidae

The water scavenger beetles

reviewed and supplemented by R. Roughley, August 1992

Subfamily Helophorinae

Helophorus Fabricius

• H. lineatus Say, ON, NB-MO, FL ("Fla"-MCZ, 2)

Subfamily Hydrophilinae

Anacaena Thomson

• A. suturalis (LeConte), NM-ON-FL (ALA, BAY, BRE, CAL, CHA, FRA, GAD, HIL, LAK, LEO, LEV, LIB, OKA, POL, PUT, SJO, VOL, WAK, WAL)

Berosus Leach

• B. aculeatus LeConte, MI, ME-LA, FL (ALA, BAY, CAL, FRA, GUL, JAC, LEO, LEV, LIB, MAD, MARI, ORA, SRO, WAK, WAL, VOL)
• B. arnetti Van Tassell, FL endemic (LIB)
• B. corrini Wooldridge, SC, GA, MS, FL (ALA, BAK, BRO, DAD, JEF, LIB, TAY, UNI)
• B. exiguus (Say), KS, PA-LA, FL (ALA, BAY, CAL, COLL, DAD, DUV, FRA, HEN, HIL, JAC, LEO, LEV, MAD, MON, OKE, OSC, PIN, POL, VOL, WAK, WAL), Cuba, Bahamas (Andros)
• B. infuscatus LeConte, CA, KS, NC-FL (ALA, BAY, BRE, BRO, CAL, CIT, COLU, DAD, FRA, GUL, HAM, HIG, JEF, LAF, LEO, LEV, MON, OKA, PAL, TAY, WAK, WAL, WAS), Mexico, Bahamas
• B. ordinatus LeConte, WI, NY-AL, FL (LIB)
• B. pantherinus LeConte, FL endemic (GAD)
• B. peregrinus (Herbst), WY, PQ, NY-CA, FL (BAY, BRE, COLL, JAC, JEF, LEE, OKA, POL, WAS), Cuba
• B. pugnax LeConte, TX, IL-IN, FL (ALA, CIT, DUV, GLA, HEN, HIL, PAL, POL, VOL)
• B. striatus (Say), BC, PQ, NY-LA, FL (ALA, BAK, BAY, CAL, CLA, COLU, DAD, DUV, FLA, FRA, GAD, GLA, HIG, JAC, JEF, LEO, LEV, LIB, MAD, PIN, POL, PUT, SJO, TAY, VOL, WAK)
• B. youngi Wooldridge, GA, FL (ALA, BRO, FRA, GLA, LEV)

Chaetarthria Stephens

• C. pallida LeConte, OR, ND, NY-CA, FL (DAD, DIX, FRA, GLA, HIG, HIL, LEE, MARI, PIN, SEM, SLU, VOL)

Cymbiodyta Bedel

• C. chamberlaini Smetana, TX, IL, ON-VT, FL (ALA, GAD, JEF, PUT)
• C. vindicata Fall, BC, NF-OR, CO, FL (LAK, OKE, LIB, GAD, PUT)

Derallus Sharp

• D. altus (LeConte), NJ-TX, Fl (ALA, DAD, LEE, LEV, PIN, POL), Cuba, Dominican Republic, Puerto Rico

Dibolocelus Bedel

• D. ovalis Ziegler, MI-NY-FL (ALA, CAL, DAD, ORA)

Enochrus Thomson

• E. blatchleyi (Fall), TX, IL-MA, FL (ALA, BRO, DAD, FRA, HIL, MON, PAL, PIN, POL, PUT, WAK)
• E. cinctus (Say), TX, MB-NB, FL (ALA, FLA, JEF, LEV, LIB, MON, PAL, PIN, PUT, WAL)
• E. consors (LeConte), MN, MA-LA, FL (ALA, BAY, CLA, COLU, DUV, GAD, GUL, HIL, LAF, LEO, LEV, LIB, MARI, PIN, PUT, SJO, WAL)
• E. consortus Green, MN-ME-LA, FL (DAD)
• E. hamiltoni (Horn), BC, NW, NF-CA, FL (BRO, DAD, MON, PAL, PUT), Bahamas (Andros)
• E. interruptus Gundersen, NJ-LA, FL (HIG, MON, OKE, OSC)
• E. ochraceus (Melsheimer), WA, MB, ME-CA, FL (ALA, BAY, BRE, BRO, CAL, CLA, COLU, DAD, FRA, GAD, GUL, HAM, HOL, JAC, JEF, LAK, LEO, LEV, LIB, MAD, MARI, MON, OKA, OSC, PAL, PIN, POL, PUT, SJO, SRO, TAY, VOL, WAL, WAS), Bahamas, Cuba, Jamaica, Dominican Republic, Mexico, CAmer
• E. perplexus (LeConte), ND, ON, ME-CA, FL (PUT), Mexico
• E. pygmaeus pygmaeus (Fabricius), CA-FL (ALA, BRO, COLL, DAD, GLA, LAK, MON, OKE, PAL, PIN, SJO), Bahamas (Andros)
• E. reflexipennis (Zimmermann), PQ, NS-LA, FL (MON, PAS), Bahamas
• E. sayi Gundersen, TX, IA, MI-MA, FL (OKE)
• E. sublongus (Fall), TX-VA, FL (ALA, BAY, CLA, FLA, FRA, GAD, GUL, JEF, LAF, MAD, MARI, PIN, POL, PUT, SJO, WAK, WAL)

Helobata Bergroth

• H. larvalis (Horn), LA-CA, FL (ALA, CAL, DAD, LEE, SAR), Cuba, Bahamas, Mexico to Brazil

Helochares Mulsant

• H. maculicollis Mulsant, MO-VA-FL (ALA, DAD, GUL, MARI, TAY, WAS, PIN)
• H. sallaei Sharp, FL (DAD, MON, PIN), Mexico

Helocombus Horn

• H. bifidus (LeConte), Labrador-FL (ALA, GAD, ORA, PAS, SJO, VOL, WAK)

Hydrobius Leach

• H. tumidus LeConte, ME-IN-FL, (ALA, CAL, DUV, GAD, POL, PUT)

Hydrochara Berthold

• H. occulta (d'Orchymont), TX, TN-MA, FL (CHA, MON, HIG, LEE, OSC, PIN)
• H. spangleri Smetana, TX, NE-OH, FL (ALA, LIB, SRO)
• H. soror Smetana, TX, MN-NY, FL (ALA, LEO, MARI, SJO)

Hydrochus Leach

• H. callosus LeConte, LA, FL (ALA, BAY, CAL, FLA, HAM, GUL, LEO, LIB)
• H. equicarinatus Blatchley, FL endemic (BRO, DAD)
• H. foveatus Haldeman - H. inaequalis LeConte, TX, FL (ALA, BAY, CAL, COLU, GAD, GUL, JEF, LEO, LEV, LIB, MAD, MARI, OKA, ORA, SJO, WAK, WAL)
• H. minimus Blatchley, FL endemic (FRA, GAD, MARI, PIN, VOL, WAL)
• H. rugosus Mulsant, MA-FL (ALA, GAD, HIG, HIL, JAC, JEF, LAK, LEO, PIN, PUT, VOL), Cuba
• H. simplex LeConte, LA-FL (ALA, CAL, CHA, DAD, FRA, GUL, HEN, LEO, LEV, MAN, MARI, PIN, POL, PUT, VOL)
• H. subcupreus Randall, ? IN, MA-FL (ALA, FLA, FRA, LEO, LEV, MAD, TAY)

Hydrophilus O.F. Müller

• H. triangularis Say, NY-CAL-TX-FL (ALA, DAD, MARI, WAL)
• H. insularis Castelnau, FL (DAD, MON), Cuba, Bahamas, Puerto Rico, CAmer, Mexico

Neohydrophilus D'Orchymont
=Hydrobiomorpha Blackburn

• N. castus (Say), FL-LA (ALA, BRO, FRA, GAL, GUL, HEN, HIL, JAC, MARI, CHA, DUV, LEE, PAL, PIN, SJO, VOL), Bahamas (Andros)

Paracymus Thomson

• P. confusus Wooldridge, TX-CA-BC-IL-VA-FL (ALA, BAY, BRO, DAD, OSC, PAL, SJO, VOL), Bahamas (Andros), Mexico
• P. degener (Horn), FL endemic (BRE, BRO, DAD, HIG, LAK, MARI, MON, ?OKA, ?TAY)
• P. dispersus Wooldridge, SC, FL (JAC)
• P. lodingi (Fall), AL-FL (MON), Bahamas (Andros)
• P. nanus (Fall), LA-GA-FL (widespread in Florida, DAD, MON), Bahamas
• P. reductus (Fall), FL endemic (ALA, BAY, DAD, OSC, PAL, SRO, WAL, WAS); According to Wooldridge (1966) records of P. despectus (LeConte) from Florida probably refer to P. reductus (Fall) and therefore the county records have been transferred to the latter.
• P. subcupreus (Say), CO-BC-NT-NS-FL (ALA, GAD, MAD, PAL, WAL)

Sperchopsis LeConte

• S. tesselatus (Ziegler), CAN-MI-FL (ALA, GAD, HOL, OKA)

Tropisternus Solier

• T. blatchleyi D'Orchymont, LA-IN-FL (ALA, CAL, DAD, FLAG, GAD, GLA, GUL, HAM, HEN, JAC, LEO, LEV, LIB, MAD, PAL, PIN, PUT, SJO, TAY)
• T. lateralis nimbatus (Say), Can-FL (GAD throughout state and on the KEYS), Cuba, Bahamas, nMexico, SAmer
• T. mexicanus Laporte, CA, NY-KS-TX-FL (ALA, BRO, CAL, CHA, COLL, DAD, DEW, GAD, GLA, GUL, HEN, HIG, HIL, JAC, JEF, LEE, LEO, LEV, LIB, MAD, MON, OKA, PAL, PIN, POL, SJO, TAY, VOL, WAK, WAL, WAS)
• T. mixtus LeConte, NY-IN-FL
• T. natator D'Orchymont?, NY-MI-FL (ALA, BAG, FRA, GAD, HAM, JAC, LEV, LIB, OKA, PAL, PUT, SRO, TAY, WAS)
• T. quadristriatus Horn, AL?, MA-FL (MON), Bahamas (Andros), Cuba; brackish water species
• T. sublaevis LeConte, IN-NB-FL, Mexico

Subfamily Sphaeridiinae

Tribe Sphaeridiini

Dactylosternum Wollaston

• D. abdominale Fabricius, CA-FL (ALA, DAD, MON, ORA, PUT), Cuba, Bahamas, Jamaica, Hispaniola, Mexico, 7CAmer, SAmer
• D. advectum Horn, FL endemic (OSC)

Phaenonotum Sharp

• P. exstriatum (Say), AZ, KS, MI-NY, FL (ALA, CIT, DAD, BRO, DIX, DUV, HEN, HIG, IND, JEF, LAK, LEE, LEO, MAN, MARI, MON, OKE, ORA, PAL, PIN, POL, PUT, SEM, SJO, SLU, VOL, WAK), Cuba, Jamaica, Puerto Rico, Lesser Antilles, Mexico, CAmer, SAmer
• P. minor Smetana, AL, FL (ALA, DAD, HIL, HIG, IND, PAL, PIN, POL, PUT, SAR, SJO, TAY, VOL)

Tribe Cercyonini

Cercyon Leach

• C. atricapillus (Marsh.), AB, NS-CA, FL (CHA, DAD, HIG, HIL, MON, PUT), Bahamas (Andros)
• C. crocatus Smetana, LA, TN-FL (JEFF)
• C. floridanus Horn, LA, AL, GA, FL (ALA, BRE, COLL, DAD, DES, DIX, HEN, HIG, IND, LEE, LEV, MART, MON, OKE, ORA, OSC, PAL, PAS, PIN, PUT, SEM, SJO, VOL)
• ? C. herceus herceus Smetana, BC, ON-CA, FL (state record only, "The Florida record is very doubtful." (Smetana 1978: 70))
• C. praetextatus Say, OR, MB, PQ, VT-CA, FL (many counties incl. Keys), Cuba, Bahamas, Jamaica, Hispaniola, CAmer, Mexico
• C. pubescens LeConte, MO, IL-MA, FL (PIN)
• C. quisquilius (L.), BC, NF, PQ, VT-CA, FL, Mexico
• C. variegatus Sharp, TX, NC-FL (DAD, DUV, HIG, PIN, PUT), Mexico, CAmer, SAmer, Puerto Rico, Jamaica
• C. versicolor Smetana, TX, KS-PA, FL (HIG, IND, TAY, VOL)

Oosternum Sharp

• O. costatum Sharp, AZ, IL-AL, FL (DAD, LAK, MON, PAL, PIN, PUT, VOL), Bahamas (Andros), Cuba, Puerto Rico, Mexico, CAmer, SAmer

Pelosoma Mulsant

• P. pecki Smetana, FL (MON), Mexico

Tribe Megasternini

Cryptopleurum Mulsant

• C. minutum (Fab.), BC, NF-CA, FL
• +C. subtile (Sharp), CA-BC-PQ-FL (DAD, first FL record, Smetana 1978), immigrant from Japan

Tribe Omicrini

Cycrillum Knisch

• C. strigicolle (Sharp), FL (MON), Mexico, CAmer, SAmer

Omicrus Sharp

• O. intermedius Smetana, FL (MON), Mexico, CAmer, SAmer
• O. palmarum (Schwarz), FL (PUT, VOL), Puerto Rico

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