HEMIPTERA HETIiROPTERA. 
173 
Genus 3. PELTOPTERUS. 
Peltopterus, Guer. Rev. Zool. 1843, 113. Slal, Hern. Afr. iii. 173 — 
ScyloECus, Slal, Ofv. K. V, Ak.\Forh. xviii. 201. 
1. Peltopterus rugosus. 
Naucoris rugosa, Desj. A. S. E. F. vi. 239; Serv. A. S. E. F. vi. 243— 
Peltopterus rugosus, GuH. Rev. Zool. 1843, 1 13. Stal, Hem. Afr. 
iii. 173. 
Mauritius. 
2. Peltopterus macrothorax. 
Galgulus macrothorax, Mlrz. Ann. Sci. Phys. 2me Ser. vii. 1, 110 — Pel- 
toplerus macrothorax, Stal, Ofv. K. V. Ak, Fork, xxvii. 706. 
Philippine Isles. 
PEDIKAPTI. 
Fam. NAUCORID^. 
Naucoridse, Serv. Hist. Hem. 426 — Naucoridae and Aphelochirae, Fieh. 
Eur. Hem. 32 — Naucorida and Belostoinadida, Stal, Hem. Afr. iii. 
174, 178 — Aphelochirina, ApheIochirida3, Naucoriua and NaucoridEe, 
Douffl. and Scott, Hem. 43 — 45 — Naucorina and Belostomina, Stal, 
Ofv. K. V. Ak. Fork, xxvii. 706. 
A. Membrane developed. 
a. Fore tarsi two-jointed. 
* Fore tarsi with one claw. 
j- First joint of the fore tarsi shorter than the second ; 
claw as long as the two joints together. 
If First joint of the fore tarsi as long as the second ; claw 
shorter than the second joint. - - - 
** Fore tarsi with two claws. . - - - 
b. Fore tarsi with one joint. . - - - 
B. Membrane rudimentary. 
a. Fore tarsi with two joints. - - . . 
b. Fore tarsi with one joint. . - . - 
Belosioma. 
Zaitha. 
Appasus. 
Naucokis. 
Spheeodema. 
Diplonychus. 
Borberotrephes is distinguished from Appasus by the fore femora not 
incrassated ; Benacus from Belostoma by tbe fore femora not furrowed 
beueath ; Hydrocyriiis irom Belostoma by having two claws on the fore 
tarsi ; Serphus and Abediis from Zaitha by having the metasternum 
keeled; Nervinops from Sphoerodoma and Appasus by tbe oue-jointed fore 
tarsi ; Serphus from Abedus as follows : — 
J First and second joints of the rostrum about equal in 
length. Third joint of the antennse with a short 
acute process. Commissural border of the clavus 
