2 HEMIPTERA-HETEROPTERA. 
CYRTOMENUS. 
Cyrtomenus, Amyot & Audinet-Serville, Hém. p. 90 (1843) ; Dall. List Hem. i. p. 110; ; Ubler, 
Bull. U.S. Geol. & Geog. Surv. iii. p. 367. 
All the species of this genus which have been described are, with one exception, from 
the Nearctic and Neotropical Regions. The exception is C. insignis, Voll., from the 
Malayan Archipelago, which, however, on examination, will probably not prove strictly 
congeneric. 
The triangular scutellum, the submarginal bristles to the head, the convex body, and 
stout and thickly spined tibie are well-marked characteristics of this genus. 
Some of these characters are liable to obliteration, as Prof. Uhler writing of one species 
says :—“ Many of the specimens which I have inspected show conspicuously the results 
of wear upon the bristles of the head and teeth of the fore tibie. In two individuals 
these appendages were entirely broken off and the bases worn.” 
1. Cyrtomenus grossus. (Tab. II. fig. 14.) 
Cyrtomenus grossus, Dall. List Hem. i. p. 111. 2}. 
Cyrtomenus grossus (??), Stal, Stett. ent. Zeit. xxiii. p. 95. 452. 
Hab. Muxtco?; Costa Rica, Irazu (Rogers).—Cotomsra 1. 
The Central-American specimens vary ouly in their smaller size from the types in the 
British Museum; and I have had the opportunity of examining the specimens in the 
collection of Dr. Signoret which were identified by Stal with doubt as the above. The 
specimen figured is from Costa Rica. 
2. Cyrtomenus teter. (Tab. II. fig. 13.) 
Cydnus teter, Spin. Ess. p. 832}. 
Cyrtomenus teter, Dall. List Hem. i. p. 111. 12. 
Hab. Costa Rica, San Francisco (Rogers).—Brazi 12, 
The specimen figured is from Costa Rica, and was compared and identified for me by 
Dr. Signoret. It, however, seems to differ slightly from Spinola’s description, that 
author describing the pronotum as being “sans impressions transverses.” 
3. Cyrtomenus excavatus, n. sp. (Tab. II. fig. 12.) 
- Above pitchy, shining, ovate ; sides, legs, and rostrum clothed with bristles. Head rugose, rounded, emarginate 
in front, central lobe not reaching anterior margins of lateral lobes. Eyes reddish; ocelli bright shining 
yellow. Antenne with the second joint shorter than the third, fourth petiolar at base; first, second, and 
third joints testaceous, fourth and fifth pitchy. Pronotum with a large excavation, deepened posteriorly, 
extending from anterior margin, immediately behind the head and between the eyes, backwards to a 
distinct transverse punctured impression which crosses the pronotum about midway. The excavated space 
is anteriorly punctured and finely wrinkled, and posteriorly smooth and sparingly punctured; it is also 
somewhat narrowed and rounded behind, and has a small basal, central, elevated shaped stria. Remainder 
