HEMIPTERA HETEROPTERA. 



183 



J Second joint of the rostrum extending beyond the 

 labium. Mesosteruum with a rather elevated 

 keel. ------ 



Xt Second joint of the rostrum wholly or almost wholly 

 hidden by the labrum. Mesosternuin 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. - 



ff Eyes not bordered on the outer side in front. 



b. Labrum triangular, acute in front. - - - 



Naucoris. 



Macrocoris. 



BORBOROCORIS. 

 LlMNOCORIS. 



Laccocoris. 



1. Naucoris cimicoides. 



Sloll, Pun. 53, pi. 12, f. 8. Roes. Ins. iii. pi. 28. Sulz. 



Ins. pi. 10, f. 3. Sckell. Cim. pi. 12. Sch. Icon. pi. 33, f. 3, 4— 

 Nepa naucoris, Deg. Ins. iii. 375, pi. 19, f. 8, 9 — Nepa cimicoides, 

 Linn. Syst. 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. 

 Lair. 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. Rech. 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 — /. England. 



m, n. France. Presented by W. W. Saunders, Esq. 

 o, p. France. 



2. Naucoris maculatus. 



Naucoris maculatus, Fabr. Syst. Rhyn. 1 10, 2. Oliv. Hist. Nat. Ins. ix. 



272. Blanch. Hist. Nat. Ins. iii. 92. Enc. viii. 143; Spin. Hem. 

 54. Bru/tt, Burm. Handb. 194, 2. Serv. Hem. 434. H.-Sch. JVanz. 

 Ins. ix. 39, pi. 293, f. 899-aptera, L.-Duf. Rech. Hem. 77. 



Europe. 



3. Naucoris Poeyi. 



Poeyi, Gue"r. Ic. R. An. Ins. pi. 57, f. 5 ; Sagra, Hist. Cuba, Ins. 418. 

 Serv. Hist. Hem. 434, pi. 8, f. 5. 



Mexico. Cuba. 



a, b. Jamaica. From Mr. Gosse's collection. 



