166 CATALOGUE OF 



South America. 

 20. Gerris erythropus. 

 Hydrometra erythropus, H.-Sch. Wanz. Ins. ix. 68, pi. 300, f. 923. 

 Brazil. 



Div. 2. 



Limnogonus, Stal, Hem. Fabr. i. 132. 



21. Gerris hyalina. 



Hydrometra hyalina, Fabr. Syst. Rhyn. 258— Iiimnogorjus hyalina, Stal, 

 Hem. Fabr. i. 133. 



South America. 



Africa. 



22. Gerris Swakopensis. 



Gerris Swakopensis, Slal, Ofv. K. V. Ak. Forh. xr. 318— Teuagogonus 

 Swakopensis, Slal, Hem. Afr. iii. 169. 



South Africa. 



23. Gerbis diversa. 



Hydrometra diversa, Mayr, Reise Novara Zool. ii. ; Hem. 169, f. 52. Verh. 

 Zool. Bot. Ges. Wien. xvi. 365. 



Cape. 



South Asia. 



24. Gerris fossarum. 



Cimex fossarum, Fabr. Si/st. Ent. 727; Sp.Ins. ii. 375; Manl. Ins. ii. 308 

 — Gerris fossarum, Fabr. Ent. Syst. iv. 188. Wolff, Ic. Cim. iii. 118, 

 pi. 12, f. 112 — Hydrometra fossarum, Fabr. Syst. Rhyn. 258— Limno- 

 gonus fossarum, Stal, Hem. Afr. i. 133. 



Hindostan. 



25. Gerris discolor. 



discolor, Slal, Eug. Resa, 265— Limnogonus discolor, Slal, Ofv. K. V. Ah. 

 Forh. xxvii. 705. 



China. Manilla. Tahiti. 



Div. 2. 

 Tenagogonus, Stal, Ofv. K. V. Ak. Forh. x. 263. 



26. Gerris fluviorum. 



Gerris fluviorum, Fabr. Ent. Syst. Suppl. 543— Hydrometra fluviorum, 

 Fabr. Syst. Rhyn. 257 — Tenago<;oiius (luvionim, Stal, Hem. Afr. 

 iii. lt!9 — Limnomelra fluviorum, Stat, Hem. Fabr. i. 132. 



Bombon. Tianqucbar (according to Fabr.) 



