174 DESCRIPTIONS OF NEW SPECIES. 



tliL' others united. Ventral segments nearly equal in length, 5th 

 of % nearly equal to the 4th, truncate behind, Gth exposed, 

 emarginate. Body thinly pubescent, above and beneath. 



4SS. G. vittatlis. Testaceus, parce pubescens, thoraee dense subti- 

 lius asperato-punctato, linea tenui dorsali l?evi, latitudine breviore, 

 lateribus late rotuudatis, apice truncato, basi late lobato ; elytris punc- 

 tatis, costis utrinque duabus paruui elevatis, vittisque duabus augustis 

 nigris. Long. 21 mill. 



California, Dr. Horn. This genus seems quite distinct from 

 any described in Lacordaire's work, and to present a curious 

 combination of characters. The well-defined angle near the tip 

 of the mandibles is singular, and known in very few other genera 

 of Cerambycini. 



OEME Newman. 



4S9. Oe. costata. Nigro-picea, subtiliter parce pubescens, prothorace 

 lateribus late rotuudatis, postice modice constricto, disco punctulato, et 

 parce punctato, vitta dorsali lsevi ; elytris thoraee latioribus, elongatis, 

 punctulatis, sntura margine costisque 3 discoidalibus augustis elevatis, 

 interstitiis parce reticulars. Long. 22 mm. 



California, Mr. Ulke. The male has the antennae as long as 

 the body ; the 3 — 6 joints are armed beneath with acute spines 

 gradually becoming more feeble. 



E17CROSSUS Lec. 



Body elongate, rather depressed, pale brown, without markings; 

 head as in Oeme, eyes large, coarsely granulated, deeply emar- 

 ginated ; palpi very unequal, labial short, maxillary long, last 

 joint triangular, obliquely truncate; antennae (£) longer than 

 the body, 1st joint stout, as long as the head, 2d very short, 3d 

 longer than the 4th, which is equal to the 5th, joints from 3d 

 gradually more slender, 11th not appendiculate, 3d, 4th, and 5th 

 armed with a very small apical spine ; beneath densely fringed 

 with long soft hair, becoming gradually thinner, and finally dis- 

 appearing on the 8th joint. Prothorax wider than the head, 

 transverse, much rounded on the sides, not constricted at base. 

 Elytra scarcelyas wide as the thorax, parallel, rounded at tip, with 

 a small subsutural spine. Prosternum narrow, rounded at tip, 

 front coxa? large, prominent, with distinct trochantin ; cavities 

 strongly angulated externally, middle and hind coxae also pro- 



