208 ENTOMOLOGICAL SOCIETY 



pulchella (Microvelia) Westwood, 1834, Ann. Soc. Ent. France, in, 



p. 647, pi. 6, fig. 5. 

 Habitat: West Indies. 

 robusta (Microvelia) Uhler, 1894, Proc. Zool. Soc. Lond., p. 219. 



Habitat: Grenada, 

 rufescens (Microvelia) Champion, 1898, Biol. C.-Am., Hem.-Het., n, 



pp. 127, 130, pi. 8, fig. 1 8. 

 Habitat : Guatemala. 

 setipes (Microvelia) Champion, 1898, Biol. C.-Am., Hem.-Het., n, pp. 



127, 130, pi. 8, fig. 19. 

 Habitat: Mexico. 

 signata (Microvelia) Uhler, 1894, Proc. Cal. Acad. Sci., (2), iv, p. 289. 



Habitat: Mexico; Baja California, 

 stellata (Microvelia) Kirkaldy, 1902, Entomologist, xxxv, p. 281. 



Habitat: Ecuador. 

 torquata (Microvelia) Champion, 1898, Biol. C.-Am., Hem.-Het., u, 



pp. 127, 128, pi. 8, fig. 14. 

 Habitat: Guatemala. 

 vagans (Microvelia) F. B. White, 1878, Ann. Mag. Nat. Hist., (5), i, 



P- 374- 

 Habitat: Hawaii (undoubtedly introduced from America). 



Subfamily 2. GERRIN^E. 



Genus i. GERRIS Fabricius. 



1794, Ent. Syst, iv, p. 188. 



Hydrometra Fabricius, 1803, Syst. Rhyng., p. 256 (not Latreille). 

 Limnotrechus Stal, 1868, 6fv. Vet.-Ak. Forh., xxv, p. 395. 



canaliculatus (Gerris) Say, 1832, Descr. Het. Hem., p. (Fitch re- 

 print, p. 807) ; 1859, Compl. Wtgs., i, p. 363. 

 Habitat: New York; New Jersey; North Carolina; Georgia, 

 cariniventris (Gerris) Champion, 1898, Biol. C.-Am., Hem.-Het., n, p. 



148, pi. 9, figs, ii, 12. 



Habitat : Mexico ; Guatemala ; Costa Rica ; Panama, 

 chilensis (Limnotrechus) Berg, 1881, An. Soc. Cient. Arg., xn, p. 263. 



Habitat: Venezuela; Peru; Chile. 

 conformis (Hygrotrechus) Uhler, 1878, Proc. Bost. Soc. Nat. Hist, 



xix, p. 435. 

 Habitat: Massachusetts; New York; New Jersey; Maryland; 



North Carolina. 



fuscinervis (Brachymetra) Berg, 1898, Com. Mus. Buenos Aires, i, p. 3. 

 pcrseus (Gerris) Kirkaldy, 1899, Boll. Mus. Zool. Anat. Comp. 



Torino, xiv, No. 351, p. I. 

 andromeda (Gerris) Kirkaldy, 1899, Boll. Mus. Zool. Anat. Comp. 



Torino, xiv, No. 351, p. 2, figs. 8, 9. 

 Habitat : Ecuador ; Bolivia ; Argentina. 



