HEMIPTERA HETEROPTERA. 
183 
1 Second joint of the rostrum extending; beyond the 
labrum, Mesosternum with a rather elevated 
keel. 
Second joint of the rostrum wholly or almost wholly 
hidden by the labrum. Mesosternum compressed 
and elevated lengthwise in the middle, and espe- 
cially so hindward. - - . . 
** Fore angles of the prothorax extending far beyond 
the middle or almost to the fore border of the 
eyes. 
f Eyes bordered on the outer side in front by the 
angles of the prothorax. - . - 
If Eyes not bordered on the outer side in front, 
b. Labrum triangular, acute in front. - - - 
Naucokis. 
Macbocobis. 
Borbobocobis. 
Limnocobis. 
Laccocobis. 
1. Naucobis cimicoides. 
StoU, Pun. 53, pi. 12, f. 8. Roes. Ins. iii. pi. 28. Sulz. 
Ins. pi. 10, f. 3. Schell, dm. pi. 12. Sch. Icon. pi. 33, f 3, 4 — 
Nepa naucoris, Deg. Ins. iii. 375, pi. 19, f. 8, 9 — Nepa cimicoides, 
Linn. Sysl. Nat. i. 2, 714; Faun. Suec. 907. Schrank. Ins. 262 — 
Naucoris cimicoides, Geoff. Ins. i. 474, pi. 9, f. 5. Fabr. Ent. Syst. 
iv. 66. Syst. Rhyn. 110. Tign. Hist. Nat. Ins. iv. 254, pi. 6, f. 1. 
Latr. Hist. Nat. Ins. xii. 285, pi. 97, f. 3 ; Gen. iii. 146. Oliv. Enc. 
viii. 143, pi. 374, f. 24. Panz. Faun. Germ. 95, 16. Fall. Hem. 
Suec. 176. Burm. Handb. Ent. ii. 193. Brull. Hist. Nat. Ins. ix. 
271. Spin. Hem. 53. L.-Duf. Reck. Hem. 79. Blanch. Hist. Nat. 
Ins. iii. 92. Serv. Hist. Hem. 433. Fieb. Eur. Hem. 102. Flor, 
Rhyn. Liv. i. 753. Dougl. and Scott, Hem. 580 — Ilyocoris cimicoides, 
Stal. 
a, b. England. From Mr. Stephens’ collection. 
c — 1. England. 
m, n. France. Presented by W. W. Saunders, Esq. 
0 , p. France. 
2. Naucoris maculatus. 
Naucoris maculatus, Fabr. Syst. Rhyn. 110, 2. Oliv. Hist. Nat. Ins. ix. 
272. Blanch. Hist. Nat. Ins. iii. 92. Enc. viii. 143 ; Spin. Hem. 
54. Brulli, Burm. Handb. 194, 2. Serv. Hem. 434. H.-Sch. Wanz. 
Ins. ix. 39, pi. 293, f. 899— aptera, L.-Duf, Rech. Hem. 77. 
Europe. 
3. Naucoris Poeyi. 
Poeyi, Guir. Ic. R. An. Ins. pi. 57, f. 5 ; Sagra, Hist. Cuba, Ins. 418. 
Serv. Hist. Hem. 434, pi. 8, f. 5. 
Mexico. Cuba. 
tt, b. Jamaica. From Mr. Gosse’s collection. 
