16 



DYTISCIDAE (genuini) 



HYDROPORINI. 

 Ilydroporus Clairv. 



hydropicua Lee. 

 punctatus Aube". 



Laccophilus punct. Say. 



Hyphidrus punct. Harris. 

 cuspidatus Germ. 



Hygrotus pustulatus Mels 

 latissimus Lee. 

 acaroides Lee. 

 contractulus Mann. 

 convexua Aube". 



var. granum Lee. 

 farctus Lee. 

 exiguua Aub. 



an rite Am. bor. ? 

 obscurellus Lee. 

 affinis Say. 



nanus Aubi. 



erythrostomua Mann. 

 macularis Lee. 

 pullus Lee. 

 lacustris Say. 



pulicarius Aube. 

 cinctellus Lee. 

 amandus Lee. 

 subtilis Lee. 

 inconspicuus Lee. 

 granarius Aub. 

 flavicollis Lee. 

 duodecimlineatus Lee. 



?laevis Kirby. 



alpinus Paylc. (f. White). 

 scitulns Lee. 

 striatellus Lee. 

 eximiua Motsch. 

 pulcher Motsch. 

 rotundatus Lee. n. sp. 

 venustus Lee. 

 striatopunctatus Mels. 

 consimilis Lee. 

 undulatus Say. 



fasciatus Harris. 



pubipennis Aube. 

 > velutinus Aube. 

 oppositus Say. 



?proximus Aube. 

 punctatissimua Aide". 

 spuriua Lee. 

 mixtus Lee. 

 sericeua Lee. 

 semirufua Lee. 

 lineolatua Lee. 

 vittatus Lee. 

 vitiosus Lee. 

 oblongua Aub. 



DYTISCIDAE. 



. catascopium Fay. 



interruptus Say. 

 -parallelus Say. 

 griseostriatua Steph. 



Dytiscus gr. De Geer. 

 humeralia Mann. 

 signatua Mann. 

 modestua Aube. 



ruficeps Aube. 

 axillaria Lee. 



humeralis|| Lee. 

 fortis Lee. 

 notabilia Lee. 

 niger Say. 

 aubpubeacena Lee. 



$> hirtellus Lee. 

 truncatua Mann. 

 tartaricua Lee. 

 americanua Aubf. 

 dichroua Mels. 



?diseicollis Say. 

 puberuluall Mann. 

 caliginosua Lee. 

 subtonsus Lee. 

 rufinasua Mann. 

 variana Lee. 



ruficapillus Mann. 

 puberulus Lcc. 

 nigellua Mann. 

 planatua Mann. 

 tenebroaua Lee. 

 lutulentua Lee. 



luridipennis|| Lee. 



an praec. var. ? 

 villa Lee. 

 oblitua Aube. 



luridipennis Mels. 



9 limbalis Mels. 

 collaria Lee. 

 latebrosua Lee. 

 conclnnua Lee. 

 pulcher Lee. 

 conoideua Lee. 

 difformis Lee. 

 sirnilis Kirby. 

 picatua Kirby. 

 diapar Lee. 

 decemllneatua Mann. 

 quadrilineatua Mann. 

 turbidua Lee. 

 suturalia Lee. 

 ovoideus Lee. 

 medialia Lee. 



?IIyg. irapressifrons Motsch. 

 fraternua Lee. 

 patruelia Lee. 

 nigrolineatua Steph. 

 luteacena Lee. 

 nubilua Lee. 



diacoldeus Lee. 

 aullcua Aub' : . 

 hybridua Lee. 

 mellitus Lee. 



Celina Aube. 



grossula Lee. n. sp. 

 angustata Aube. 



NOTERINI. 



Colpins Leo. 



iuflatus Lee. n. sp. 



Suphis Aube. 



bicolor Lee. 



Noterus bicolor Say. 

 B. gibbulus Aube. 



Hydrocanthus Say. 



iricolor a#. 

 atrip ennis Say. 

 nanulua Lee. n. sp. 



COLYMBETINI. 



Laccopliilus Leach. 



maculoaua Say. 



Dytiscus mac. Germ.. 

 truncatua Mann. 



californicus Motsch. 

 fasciatus Aube. 



var. rufus Mels. 



?biguttatus Kirby. 

 proximua Say. 



americanus Aube. 

 undatua Aube. 

 gentilia Lee. n. sp. 



Coptotomus Say. 



difficilia Lee. 

 interrogatua Aube. 



Dytiscus int. Fabr. 



Colymbetes venustns Say. 



?Copt. serripalpis Say. 

 longulua Lee. 



Matus Aube. 



bicarinatus Aube. 

 Colymbetes bicar. Say. 



Copelatus Er. 



glyphlcua Lee. 



Colymbetes glyph. Say. 

 Cop. decemstriatus Aube. 



