HEMIPTERA HETEROPTERA. 183 
¢ Second joint of the rostrum extending beyond the 
labrum. Mesosternum with a rather elevated 
keel. - - - - - - Navcoris. 
ft} 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. - - = = Macrocoris. 
** Fore angles of the prothorax extending far beyond 
the middle or almost to the fore border of the 
eyes. 
+ Eyes bordered on the outer side in front by the 
angles of the prothorax. -  Borsorocorts. 
tt Eyes not bordered on the outer side'i in front. - Limnocorts. 
» Labrum triangular, acute in front. - - - Laccocoris. 
1. NAUCORIS CIMICOIDES. 
Stoll, Pun. 53, pl. 12, f.8. Roes. Ins. iii. pl. 28. Sulz. 
Ins. pl. 10, f. 3. Schell. Cim. pl. 12. Sch. Icon. pl. 33, f. 3, 4— 
Nepa naucoris, Deg. Ins. iii. 375, pl. 19, f. 8, 9—Nepa cimicoides, 
Linn. Syst. Nat. i. 2,714; Faun, Suec. 907. Schrank, Ins, 262— 
Naucoris cimicoides, Geoff: Ins. i. 474, pl. 9, f.5. Fabr. Ent. Syst. 
iv. 66. Syst. Rhyn. 110. Tign. Hist. Nat. Ins. iv. 254, pl. 6, f. 1. 
Latr. Hist. Nat. Ins. xii. 285, pl. 97, f. 3; Gen. iii. 146. Oliv. Ene. 
viii. 143, pl. 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—Llyocoris cimicoides, 
Stal. 
a, b. England. From Mr. Stephens’ collection. 
c—/l, England. 
m,n. France. Presented by W. W. Saunders, Esq. 
o, p. France. 
2. NaucoriIs MACULATUS. 
Naucoris maculatus, Fabr. Syst. Rhyn.110,2. Oliv. Hist. Nat. Ins. ix. 
272. Blanch. Hist. Nat. Ins. iii, 92. Ene, viii. 143; Spin. Hem. 
54. Brullé, Burm. Handb, 194, 2. Serv. Hem. 434. H.-Sch, Wanz. 
Ins, ix. 39, pl. 293, f. 899—aptera, L.-Duf. Rech. Hem. 77. 
Europe. 
3. Naucoris Poryt, 
Poeyi, Guér. Ic. R. An. Ins. pl. 57, f£.5; Sagra, Hist. Cuba, Ins. 418. 
Serv. Hist. Hem. 434, pl. 8, f. 5. 
Mexico. Cuba. 
a,b. Jamaica. From Mr. Gosse’s collection. 
