168 
CATALOGUE OP 
South America. 
20. Gerkis ertthropus. 
Hydrometra erythropus, H.-Sch. Wanz. Ins. ix. 68, pi. 300, f. 923. 
Brazil. 
Div. 2. 
Liinnogonus, Stal, Hem. Fair. i. 132. 
21. GerBIS H VALINA. 
Hydrometra hyalina, Fabr. Syst. R/iyn. 258 — Limuogonus hyalina, Slal, 
Hem, Fabr. i. 133. 
South America. 
Africa. 
22. Gerris Swakopensis. 
Gerris Swalopensis, Slal, Ofv. K. V. Ak. Fork. xv. 318 — Tenagogonus 
Swakopensis, Slal, Hem. Afr. iii. 169. 
South Africa. 
23. Gerris diversa. 
Hydrometra diversa, Mayr, Reise Novara Zool. ii. ; Hem. 169, f. 52, Verh. 
Zool, Bol, Ges. Wien. xvi. 365. 
Cape. 
South Asia. 
24. Gerris fossabum. 
Cimex fossarum, Fabr. Syst. Ent. Til ; Sp, Ins. ii. 375 ; Mant. 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, Slal, Hem. Afr. i. 133. 
Hindostan. 
25. Gerris discolor. 
discolor, Stal, Eug. Resa, 265 — Limnogonus discolor, Stal, Ofv. K. V. Ah. 
Fork, xxvii. 705. 
China. Manilla. Tahiti. 
Div. 2. 
Tenagogonus, Stal, Ofv. K. V. Ak. Fork. x. 263. 
26. Gerris fluviorum. 
Gerris fluviorum, Fabr. Ent. Syst. Suppl. 543 — Hydrometra fluviorum, 
Fabr, Syst. Rhyn. 257 — Tenagogonus fluviorum, Stal, Hem. Afr. 
iii. 169 — Limnometia fluviorum, Stal, Hem. Fabr. i. 132. 
Bombon. Tranquebar (according to Fabr.) 
