Bd 
440 CLASS VIII. 
of terminal claws. Body depresso-cylindrical or oblongo-ovate, 
thickish. 
Notonecta L. 
+ Anterior tarsi uniarticulate. 
a) Scutellum not distinct, covered by prothorax. a 
Corixa Grorrr., Latr., (Sigara Fasr.) 
Sp. Notonecta striata L., Rasen, Ins. 111. Tab. 29, fig. d; SCHELLENBERG, 
Cimic. Tab. 1X. ;—Cor. Geoffroyii Leacu, Cor. punctata BuRM., Ra@szEL, 1. 1. 
figs. a, b, &e. 
6) Scutellum distinct. 
Sigara Leacu (species of Sigara Far.) 
Sp. Stgara minuta Fasr., Notonecta minutissima L. 
++ Anterior tarsi triarticulate. Scutellum distinct. 
a) Posterior feet terminated by two claws. 
Ploa Strrx., Burm., Plea Leacu. 
Sp. Notonecta minutissima Fasr., (not L.), Panzer, Deutschl. Ins. 2, Tab. 
20; only 1” long. 
b) Posterior feet with tarsi biarticulate, without claws. 
Notonecta Fasr., (exclu. V. minutissima), Leacu, Burm. 
Sp. Wotonecta glauca L., Rasen, Ins. mt. Tab. 27; ScHELLENB. Cimic. 
Tab. x.; Panzer, Deutschl. Ins. Heft 3, Tab. 20. Water-bug ; it swims on 
its back, and stings severely?. 
B. ‘Two anterior feet cheliform, the tibia and tarsus forming a 
eurved hook to be lodged upon the thighs, incrassated and grooved 
on their anterior inner margin (Nepa L.). 
Naucoris GEOFFR., Fasr. Antenne quadriarticulate. Head 
almost as broad as thorax. Anterior tarsi uniarticulate. Body 
ovate, depressed. 
Sp. Naucoris cimicoides, Nepa cimicoides L., Rast, Ins. ut. Tab, 28; 
SCHELLENB. Cimic. Tab. x11.; Panzer, Deutschl. Ins. Heft 95, Tab. 16, &c. 
Belostoma LAatr. Antenne quadriarticulate. Head small, nar- 
rower than thorax, triangular. Anterior tarsi biarticulate. Body 
ovate, depressed. 
1 Comp. on this sub-genus Luacu in Lin. Transact. Vol. x11. 1818, pp. 10—18. 
