FALL AND COCKERELL. 163 



H. vilis Lee. Gallinas Canon (S.), Santa Fe Canon (S.), Pecos (C), Santa Fe, 

 identity doubtful (C.)- 



H. belfrag-ei Sharp. Beulah (C). 



Ilybius biguttalus Germ. Gallinas Canon (S.), Water Canon (S.), Santa Fe 

 Canon (S.). 



I. laramseus Lee. Gallinas Canon (S.). 



Ilybiosoma regularis Lee. Gallinas Canon (S.). 



Copelatus chevrolatii Aube. Albuquerque (W.). 



Agabus cordatus Lee. Gallinas Canon (S.), Santa Fe Canon (S.), Ruidoso 

 (T.), Sacramento Mts. (K.), Pecos (C). The type was obtained at Santa Fe by 

 Fendler. 



A. intersectus Cr. Santa Fe Canon (S.). 



A. lugens Lee. Santa Fe Canon (S.), Sacramento Mts. (K.), Pecos (C). 



A. semivittatus Lee. Las Vegas (C). 



A. semipunctatus Kirby. Santa Fe Canon (S.). Probably an erroneous de- 

 termination. 



A. disintegratus Cr. Albuquerque (C). 



A. austinii Sharp. Santa Fe Canon (S.). 



A. obliteratus Lee. Santa Fe (C). 



A. tristis Aube. Santa Fe Canon (S.). 



Rhantus binotatus Harris. Gallinas Canon (S.), Santa Fe Canon (S. ), Albu- 

 querque (C), Las Vegas (C), Canon de Chelle (Wheeler Surv.). 



B. atricolor Aube. Walnut Creek (S.), Soledad Canon, Organ Mts. fT.). 

 Colymbetes sculptilis Harris. "New Mexico" (Wheeler Surv.). 

 Eretes sticticus L. "New Mexico" (Townsend). 



Dytiscus marg-inicoUis Lee. Tierra Amarilla 'Wheeler Surv.). 



Thermonectes ornaticoUis Aube. Santa Rosa (K.). 



T. ornaticoUis v. nigrofasciatas Aube. Albuquerque (W.). 



T. basilaris Harris. Albuquerque (W.). 



Cybister fimbriolatus Say. Albuquerque (W.). 



GYRINID^. 

 Gyrinus plicifer Lee. Albuquerque (W.), Soledad Canon, Organ Mts. (C). 

 G. tnaculiventris Lee. Albuquerque (W.). 

 Dineutes assimilis Aube. Albuquerque (W.). 



HYDROPHILID^. 

 Helophorus lineatus Say. Albuquerque (W.). 

 H. auricollis Esch. Albuquerque (W.j. 



HYDROPHIL.ID-S3. 

 Helophorus lineatus Say. Albuquerque (W.). 

 H. auricollis Esch. Albuquerque (W.). 

 Ocbthebius foveicollis Lee. Moqui Villages (cf. Horn). 

 O. lineatus Lee. "New Mexico" (cf. Horn). 

 O. sculptus Lee. Albuquerque (W.). 

 Hydrsena punctata Lee. Beulah (Skinner). 



TBANS. AM. ENT. SOC. X.XXIII. MAY, 1907. 



