Table 3.
Checklist of species of Hydradephaga recorded from Cape Breton Island, Nova Scotia, Canada, and their provincial and territorial distribution within northeastern North America (NA). Key: asterisk (*), Holarctic species; cross (†), species not collected in this survey but recorded in Majka (2009); C, Cape Breton County; I, Inverness County; R, Richmond County; V, Victoria County; species in bold correspond to strict eastern Canada elements; i.e., never recorded west of the province of Ontario.
| Taxon | Counties | Distribution in northeastern North America | |||
|---|---|---|---|---|---|
| C | I | R | V | ||
| GYRINIDAE | |||||
| Gyrininae | |||||
| Enhydrini | |||||
| Dineutus hornii Roberts | 1 | 1 | 1 | CT, MA, ME, MI, NB, NH, NS, NY, ON, PE, QC, RI | |
| Dineutus nigrior Roberts | 1 | 1 | CT, MA, ME, MI, NB, NH, NS, ON, PE, QC, RI | ||
| Gyrinini | |||||
| Gyrinus affinis Aubé | 1 | 1 | 1 | LB, MA, ME, NB, NF, NH, NS, NY, ON, PE, QC, RI, VT | |
| Gyrinis aquiris LeConte | 1 | 1 | 1 | LB, MA, ME, MI, NB, NF, NS, NY, ON, PE, QC, RI | |
| Gyrinus cavatus Atton† | 1 | LB, MA, ME, NF, NH, NS, NY, ON, QC, RI | |||
| Gyrinus confinis Fall | 1 | CT, LB, MA, ME, NB, NF, NH, NS, NY, ON, PE, QC, SM, VT | |||
| Gyrinus fraternus Couper | 1 | MA, ME, NB, NH, NS, NY, ON, PE, QC, VT | |||
| Gyrinus gehringi Chamberlain | 1 | 1 | 1 | 1 | NB, NS, NF, NH, ON, PE, QC |
| Gyrinus impressicollis Kirby† | 1 | NS, ON, QC | |||
| Gyrinus latilimbus Fall | 1 | 1 | 1 | 1 | CT, LB, MA, ME, NB, NF, NH, NS, NY, ON, PE, QC, SE |
| Gyrinus pugionis Fall | 1 | 1 | 1 | MA, ME, MI, NB, NH, NS, NY, ON, PE, QC. VT | |
| Gyrinus sayi Aubé | 1 | 1 | 1 | 1 | CT, MI, LB, MA, ME, NB, NF, NH, NS, NY, ON, PE, QC, RI, SM |
| HALIPLIDAE | |||||
| Haliplus canadensis Wallis | 1 | 1 | MA, NB, NS, ON, PE, QC | ||
| Haliplus connexus Matheson | 1 | CT, MA, ME, NB, NH, NS, NY, ON, PE, QC, VT | |||
| Haliplus cribarius LeConte | 1 | 1 | CT, LB, MA, ME, MI, NB, NF, NH, NS, NY, ON, PE, QC, SM | ||
| Haliplus fulvus (Fabricius)* | 1 | 1 | 1 | ON, MA, ME, NB, NF, NH, NS, NY, ON, QC | |
| Haliplus immaculicollis Harris | 1 | 1 | 1 | 1 | CT, LB, MA, ME, MI, NB, NF, NH, NS, NY, ON, QC, PE, RI, SM, VT |
| Haliplus longulus LeConte | 1 | 1 | MA, ME, NB, NH, NB, NS, NY, ON, PE, QC, RI | ||
| Peltodytes edentulus (LeConte) | 1 | MA, NB, NH, NS, ON, QC, PE, RI | |||
| DYTISCIDAE | |||||
| Agabinae | |||||
| Agabini | |||||
| Agabus ambiguus (Say) | 1 | 1 | 1 | LB, ME, MI, NB, NF, NH, NS, ON, PE, QC, RI, SM | |
| Agabus anthracinus Mannerheim | 1 | 1 | 1 | 1 | LB, MA, ME, MI, NB, NF, NH, NS, NY, ON, PE, QC, SM, VT |
| Agabus erythropterus (Say) | 1 | 1 | 1 | 1 | CT, LB, MA, ME, NB, NF, NS, NY, ON, PE, QC, RI |
| Agabus leptapsis (LeConte) | 1 | 1 | LB, ME, NB, NF, NS, NY, ON, QC, VT | ||
| Agabus phaeopterus (Kirby) | 1 | LB, MA, ME, MI, NB, NF, NH, NS, NY, ON, PE, QC | |||
| Agabus semipunctatus (Kirby) | 1 | 1 | 1 | CT, LB, MA, ME, MI, NB, NF, NH, NS, NY, ON, QC, RI | |
| Agabus subfuscatus Sharp | 1 | 1 | 1 | CT, LB, MA, ME, NB, NF, NH, NS, ON, PE, QC, VT | |
| Ilybiosoma seriatum (Say) | 1 | 1 | 1 | 1 | CT, LB, MA, ME, MI, NB, NF, NH, NS, ON, PE, QC, SM |
| Ilybius angustior (Gyllenhal)* | 1 | 1 | LB, MI, ME, NB, NF, NH, NS, ON, PE, QC, SM, VT | ||
| Ilybius biguttulus (Germar) | 1 | 1 | 1 | 1 | MA, ME, MI, NB, NF, NH, NS, NY, ON, PE, QC, RI, SM, VT |
| Ilybius confusus Aubé | 1 | CT, MA, ME, NB, NH, NS, NY, ON, RI. VT | |||
| Ilybius discedens Sharp* | 1 | 1 | 1 | 1 | LB, ME, MI, NB, NF, NH, NS, ON, PE, QC, SM |
| Ilybius erichsoni G. & H.* | 1 | 1 | LB, MA, ME, MI, NB, NF, NH, NS, NY, ON, PE, QC | ||
| Ilybius ignarus (LeConte) | 1 | 1 | 1 | CT, MA, ME, NH, NS, NY, ON, QC, RI | |
| Ilybius larsoni (Fery & Nilsson) | 1 | 1 | 1 | 1 | NB, NS, ON, PE, QC |
| Ilybius picipes (Kirby)* | 1 | 1 | LB, NF, NS, ON, QC | ||
| Ilybius pleuriticus (Leconte) | 1 | 1 | CT, LB, MA, ME, MI, NB, NF, NS, ON, PE, QC, RI, SM, VT | ||
| Ilybius wasastjernae (C. R. Sahlberg)* | 1 | ME, LB, NB, NF, NS, ON, QC | |||
| Platambus obtusatus (Say) | 1 | 1 | 1 | 1 | CT, MA, ME, NB, NH, NS, NY, ON, QC, VT |
| Colymbetinae | |||||
| Colymbetini | |||||
| Colymbetes paykulli Erichson* | 1 | 1 | LB, ME, NB, NF, NS, ON, PE, QC | ||
| Colymbetes sculptilis Harris | 1 | CT, LB, MI, NB, NF, NH, NS, NY, ON, PE, QC, RI | |||
| Meridiorhantus sinuatus (LeConte) | 1 | 1 | LB, MA, ME, NB, NF, NH, NS, NY, ON, PE, QC | ||
| Rhantus binotatus (Harris) | 1 | 1 | 1 | CT, LB, ME, MI, NB, NF, NH, NS, ON, PE, QC, RI, SM | |
| Rhantus suturellus (Harris)* | 1 | 1 | CT, LB, MA, ME, MI, NB, NF, NH, NS, NY, ON, PE, QC, SM | ||
| Rhantus wallisi Hatch | 1 | 1 | 1 | LB, MA, MI, NB, NF, NH, NS, ON, PE, QC, SM | |
| Copelatinae | |||||
| Copelatini | |||||
| Copelatus glyphicus (Say) | 1 | 1 | 1 | CT, ME, NF, NH, NB, NS, ON, PE, QC, RI | |
| Coptotominae | |||||
| Coptotomini | |||||
| Coptotomus longulus LeConte | 1 | 1 | MA, ME, MI, NB, NH, NS, NY, ON, QC, NB, PE, RI | ||
| Dytiscinae | |||||
| Aciliini | |||||
| Acilius mediatus (Say) | 1 | 1 | CT, MA, NB, NH, NS, ON, PE, QC, RI | ||
| Acilius semisulcatus Aubé | 1 | 1 | 1 | CT, LB, MA, ME, MI, NB, NF, NH, NS, ON, PE, QC, RI, SM | |
| Dytiscini | |||||
| Dytiscus fasciventris Say | 1 | 1 | CT, LB, ME, NB, NH, NS, ON, PE, QC, RI | ||
| Dytiscus verticalis Say | 1 | 1 | CT, MA, ME, NB, NH, NS, NY, ON, PE, QC, RI | ||
| Hydaticini | |||||
| Hydaticus aruspex Clark* | 1 | 1 | 1 | 1 | CT, LB, MA, ME, NB, NF, NH, NS, ON, PE, QC |
| Hydroporinae | |||||
| Bidessini | |||||
| Liodessus affinis (Say) | 1 | 1 | 1 | 1 | CT, ME, NB, NF, NH, NS, ON, PE, QC, RI |
| Hydroporini | |||||
| Heterosternuta allegheniana (Matta & Wolfe) | 1 | 1 | NB, NS, QC | ||
| Heterosternuta pulchra (LeConte) | 1 | 1 | 1 | CT, ME, LB, NB, NF, NS, ON, QC, SM | |
| Heterosternuta wickhami (Zaitzev) | 1 | 1 | NS, ON, QC | ||
| Hydrocolus paugus (Fall) | 1 | 1 | 1 | 1 | LB, MA, ME, MI, NB, NF, NH, NS, NY, ON, PE, QC, SM |
| Hydrocolus stagnalis (G. & H.) | 1 | 1 | 1 | 1 | CT, MA, ME, NB, NH, NS, NY, ON, PE, QC |
| Hydroporus appalachius Sherman | 1 | LB, MA, ME, NH, NS, ON, QC | |||
| Hydroporus badiellus Fall | 1 | 1 | 1 | LB, ME, MI, NB, NF, NH, NS, ON, QC | |
| Hydroporus dentellus Fall | 1 | 1 | 1 | LB, MA, ME, MI, NB, NH, NS, NY, ON, PE, QC | |
| Hydroporus gossei Larson & Roughley | 1 | 1 | 1 | ME, NB, NF, NS, NY, ON, PE, QC | |
| Hydroporus nigellus Mannerheim* | 1 | 1 | LB, NB, NS, ON, QC | ||
| Hydroporus niger Say | 1 | 1 | CT, MA, MI, NB, NF, NH, NS, NY, ON, PE, QC, RI | ||
| Hydroporus notabilis LeConte* | 1 | 1 | 1 | 1 | LB, MA, ME, MI, NB, NF, NH, NS, ON, PE, QC, SM |
| Hydroporus obscurus Sturm* | 1 | LB, NB, NF, NS, ON, PE, QC, SM | |||
| Hydroporus puberulus LeConte* | 1 | 1 | LB, ME, NB, NF, NS, ON, QC | ||
| Hydroporus rufinasus Mannerheim | 1 | ME, NB, NS, ON, QC | |||
| Hydroporus signatus Mannerheim | 1 | 1 | 1 | CT, LB, MA, ME, MI, NB, NF, NH, NS, NY, ON, PE, QC, RI, SM | |
| Hydroporus striola (Gyllenhal)* | 1 | 1 | 1 | 1 | LB, ME, MI, NB, NF, NH, NS, ON, PE, QC, RI |
| Hydroporus tenebrosus LeConte | 1 | 1 | MA, ME, MI, NB, NH, NS, NF, ON, PE, QC, | ||
| Hydroporus tristis (Paykull)* | 1 | 1 | 1 | LB, ME, MI, NB, NF, NH, NS, NY, ON, PE, QC, RI, SM | |
| Nebrioporus rotundatus (LeConte) | 1 | 1 | 1 | LB, MA, ME, NB, NF, NS, ON, PE, QC, RI | |
| Neoporus carolinus (Fall) | 1 | 1 | 1 | 1 | LB, MA, ME, NB, NF, NH, NS, NY, ON, PE, QC, SM |
| Neoporus clypealis (Sharp) | 1 | 1 | ME, NB, NH, NS, NY, ON, PE, QC | ||
| Neoporus dimidiatus (G. & H.) | 1 | 1 | CT, LB, MA, ME, NB, NF, NH, NS, ON, PE, QC, RI | ||
| Neoporus spurius (LeConte) | 1 | 1 | NB, NS, ON, QC | ||
| Neoporus sulcipennis (Fall) | 1 | 1 | NB, NH, NS, NY, ON, PE, QC, | ||
| Neoporus undulatus (Say) | 1 | 1 | 1 | 1 | CT, LB, MA, ME, MI, NB, NF, NS, NY, ON, PE, QC, RI, SM |
| Oreodytess. scitulus (LeConte) | 1 | ME, LB, NB, NF, NH, NS, NY, ON, QC, SM | |||
| Hygrotini | |||||
| Clemnius laccophilinus (LeConte) | 1 | ME, NB, NH, NS, ON, PE, QC | |||
| Hygrotus impressopunctatus (Schaller)* | 1 | LB, ME, MI, NB, NF, NH, NS, ON, PE, QC | |||
| Hygrotus picatus (Kirby) | 1 | 1 | 1 | 1 | LB, MI, NB, NF, NH, NS, NY, ON, PE, QC, RI |
| Hygrotus sayi Balfour-Browne | 1 | 1 | 1 | 1 | LB, MA, ME, MI, NB, NF, NH, NS, NY, ON, PE, QC, RI, SM, VT |
| Hygrotus turbidus (LeConte) | 1 | 1 | MA, MI, NB, NH, NS, NY, ON, PE, QC, RI | ||
| Hyphydrini | |||||
| Desmopachria convexa (Aubé) | 1 | 1 | 1 | ME, MI, NB, NS, ON, PE, QC, RI | |
| Laccornini | |||||
| Laccornis latens (Fall) | 1 | MA, NB, NH, NS, NY, ON, PE, QC, | |||
| Laccophilinae | |||||
| Laccophilini | |||||
| Laccophilus m. maculosus Say | 1 | 1 | 1 | 1 | CT, MA, ME, MI, NB, NH, NS, ON, PE, QC, RI |
| Total | 48 | 68 | 56 | 50 | |
Notes: Regional Distribution information derived from Downie and Arnett (1996), Larson et al. (2000), Majka (2008), Alarie (2009, 2016), Majka et al. (2011), Elder and Abraham (2012), Bousquet et al. (2013), and Webster (2016). Key: CT, Connecticut; LB, Labrador; MA, Massachusetts; ME, Maine; MI, Magdalen Island Archipelago, NB, New Brunswick; NF, insular Newfoundland; NH, New Hampshire; NS, Nova Scotia; NY, New York; ON, Ontario; PE, Prince Edward Island; QC, Québec; RI, Rhode Island; SM, Saint-Pierre et Miquelon; VT, Vermont.