Genera mid Species of Coleoptera. 131 



Omosakotes [Lamiidae]. 

 Head exserted, vertical, quadrate in front. Ej'es very deeply divided, the 

 two portions connected only by a narrow line. Antenute distant, 

 robust, shorter than the body, pedunculate, and ciliated beneath, the 

 first joint slightly incrassated, the third longest, the rest gradually 

 decreasing in length. Epistome very short. Labrum small, transverse, 

 rounded. Palpi slender, subaeimiinate. Prothorax arched, narrower 

 than the elytra, rounded in the middle, contracted anteriorly and pos- 

 teriorly, the sides strongly toothed. Scutellum quadrate. Elytra short, 

 narrow, broadest at the base, convex. Legs moderate ; tibiae compressed, 

 the anterior emarginate internally; tarsi very short, the basal joint trian- 

 gidar. Prosternum broad, rounded posteriorly; mesostemum sub-bilobed. 



This genus, with Scopadus, appears to enter into a small group 

 of South American Longicorns, of which the Cerambyx sericem of 

 Perty may be considered as the type. This is one of Mr. Bates's 

 rarest captures, he having never met with more than two specimens ; 

 one is now in my collection, the other in his own. 



Omosarotes singularis. (PI. VIII. fig. 5.) 

 0. atro-piceus, crinitus, pube sparsa griseo-fulva varius ; elytris basi pe- 



dunculo-fascicidatis. 

 Hab. Brazil (Para). 



Pitchy-black, with long slender scattered hairs, particularly on the 

 posterior part of the elytra and legs, and rather thinly covered with a 

 greyish-yellow pubescence, which is most predominant on the pro- 

 thorax and basal half of the elytra, forming also a sort of band, which 

 is margined with a little white anteriorly, across their posterior third ; 

 head narrower above the eyes, the peduncles bearing the antennae 

 rather distant, with, a longitudinal gToove between them ; lateral tooth 

 of the prothorax on the middle ; a shai'p carina half the length of the 

 elj^tra terminating at the humeral angle, the side below it bent abruptly 

 down, near the base an elevated protuberance bearing a fascicle of long, 

 nearly erect black hairs ; tibiae with a line of thickly-set yellowish hairs 

 externally ; body beneath deep black, the throat, breast aud^ abdomen 

 very glossy. Length 5 lines. 



Langukia [Languriidse]. 



Latreille, Gen. Crust, et Insect, iii. p. 65. 



Languria illcetabilis. (PI. V. fig. 4.) 



L. elongata, rubro-fusca ; elytris chalybeo-viridibus ; antennarum clava, 



pedibusque fuscis. 

 Hab. Natal. 



Narrowly elongate, dark reddish-brown, smooth, shining ; head and 

 prothorax finely punctured, the latter much narrower posteriorly ; scu- 

 tellum subcordate, reddish-brown ; elytra narrow, parallel, striato- 

 punctate, dark steel-green ; antennae pale at the base, the club black ; 



