AUFEIUS.—CORIZUS. 169 
1. Aufeius impressicollis. (Tab. XV. fig. 20.) 
Aufeius impressicollis, Stal, En. Hem. i. p. 222. 1*; Uhler, Hayden’s Surv. Mont. pt. iv., Zool. & 
Bot. p. 403’; Bull. U.S. Geol. & Geog. Surv. ii. p. 300°; iii. p. 407*; Wheeler’s Rep. Geog. 
Expl. v. Zool. p. 834°. 
Hab. Norta America, Texas!23, Dakota?%, Colorado 4, California? 3, Gila river ®, 
Arizona ? 3,—MeExico !. 
The specimen figured is a typical one, in the collection of the Stockholm Museum. 
Division CORIZARIA. 
Corizaria, Stal, En. Hem. iii. p. 97 (1878). 
This division really comprises the old genus Corizus, several new genera having been 
founded by Stal on the Oriental and Ethiopian species of that genus. It differs from the 
Harmostaria by the unarmed posterior femora, and by the pronotal angles, which are 
obtuse or unarmed. The anterior portions of the lateral margins of the pronotum are 
either not or very obtusely sinuated. The basal joint of the antenne is short, either 
not reaching or scarcely passing the apex of the head. | 
CORIZUS. 
Corizus, Fallén, Spec. nov. Hem. disp. meth. exhib. p. 8 (1814) et Hem. Suec. p. 40 (1829); Signoret, 
Ann. Soc. Ent. Fr. sér. 3, vii. p. 75 (1859) ; Stal, Ofv. Vet.-Ak. Forh. 1872, No. 6, p. 55. 
Rhopalus (part.), Schilling, Beitr. i. p.36 (1829) ; Amyot & Serville, Hist. des Hém. p. 245 (1843) ; 
Dallas, List Hem. ui. p. 520 (1852). 
Niesthrea, Spinola, Ess. Hém. p. 245 (1837). 
Corizus being the only genus of the division as at present known in Central America, 
little diagnosis is required beyond what applies to the Corizaria. The genus as here 
treated is almost universally distributed. Its species appear to be of the most protean 
character. 
1. Corizus hyalinus. (Tab. XVI. fig. 7.) , 
Lygeus hyalinus, Fabr. Ent. Syst. iv. p. 168. 115. 
Coreus hyalinus, Fabr. Syst. Rhynch. p. 201. 45. 
Rhopalus truncatus, Fieb. Eur. Hem. p. 234. 4. 
Corizus hyalinus, Stal, Hem. Fabr. i. p. 68. 2; Uhler, Bull. U.S. Geol. & Geog. Surv. i. p. 300. 1’; 
. iii. p. 407°. 
Corizus (Liorhyssus) hyalinus, Stal, En. Hem. 1. p. 222. 1. 
Corizus dilatipennis, Sign. Ann. Soc. Ent. Fr. sér. 3, vii. p. 89. 18°. 
Corizus variegatus, Sign. Ann. Soc. Ent. Fr. sér. 8, vii. p. 89. 20°. 
Corizus truncatus, Stal, Hem. Afr. 2, p. 117. 3°. 
Liorhyssus hyalinus, Stal, En. Hem. iii. p. 98. 1°. 
Corizus viridicatus, Uhler, Hayden’s Surv. Mont. pt. iv. Zool. & Bot. p. 404", 
Corizus hyalinus, Stal, Ofv. Vet.-Ak. Férh. 1870, p. 659. 1°. 
BIOL. CENTR.~AMER., Rhynch., February 1882. : 22 
