— i8,S — 



H. modestus Auhe. — N. Y. City and viciiiil\', N. J., Conn., Canada. 



H. stagnalis G. &'//.—}<. V. City and vicinity, X. J., Can., Vt., Lake 

 Superior. 



H. oblitus All/'!'. — Peekskill, N. Y. Rare. Middle States, Lake Superior. 



H. difformis Lrc. — N. Y., Mass. lalsoGa.l. 



H. oblongus Stt'ph. — Can., L. Superior, Pa., Micli. (also Vancouver, Finland 

 and Arctic .'-^iberiaj. 



H. tartaricus Lrc — Peekskill, N. Y. (Sheiman), Vt., Lake Superior, C;in. 

 (also Hudson l>ay, Col. and Arctic Siberia). 



H. laccophilinus Lee. — Peekskill, N. V. (Sherman). 



H. caliginosus Lee. — Lake Superior, Quebec, Canada (Cdoper), Labrador. 



H. septentrionalis Gyll. — Lake Superior, eastern Siberia and north. Eurcpe. 



H. vilis Lt'c — Lake .Superior. 



H. notabilis I.ec. — -Lake Superior, Can. 



H. atriceps Cr. — While Mis., N.IL (also Finland, Scolland, Arctic Siberia!. 



IiAiiiLs J^r Gi'cr. 



L ater Dc (',.— Reported from Pa. It is a European species and tiie determ- 

 ination may be incorrect. 



L pleuriticus /,<•<•. — Reported from Pa. and Lake Superior, (also Kan., Alaska, 

 Siberia and Europe). 



\. angustior (ivll. — Occurs in Labrador, Lake Superior (also Kansas). 



\. biguttalus (Jltiii. — Abundant near N. Y. City, N. J., Pa., Conn., O., 111., 

 Michigan, Can. ^Couper). 



I. fraterculus Lt^c. — N. Y. City and vicinity, Michigan (Schwarz), also Neb. 

 and Kans. 



I. 4-maculatus An/'J, — Occurs at Peekskill, N. Y., N. Hampsh. (Slossoni, 

 (^)uebec. Can. iCouperl, (Sherman), (also in Ov. and .Alaska). 



I. ignarus Ia'c- — Occurs at Peekskill, N. \'., rarely in a wooded swamp, 

 (.Sheiman), .Michigan (Schwar/. ). 



L conlusus A tide. — .Michigan (Schwarz), Lake Superior. 



L assimilis Kl'y. — Canada 



C()l'l(Vl()\H's Siiy. 



C. interrogatus Fti/n: — .\bundant in ponds near \. Y. City, N. T-, !''>•. 

 Conn., ()., Mich., Can., (also (la.. Mo., 'Pe.K. and Cal.K 



1 1.^ lilosoM.A Cr. 

 \. bifarius AVm.— Canada, Lake Superior Region, (Schwarz). 



("()!'Ki. \ifs A";-. 



C. glyphicus .S,!y. — .\bundant near N. \'. City, in X. J., I'a., Can., 111., 

 (also Fla., La., Tex. and Kan.). \'ery common under stones along inlets of the 

 Hudson River. Rare in ponds (Sherman), Ohio (l)ury). 



C. Chevrolatii .Itiln-. — Lake Snjierior Region (Schwaiz). 



