62 Description of New 



macula of yellowish color flowing together with the margin 

 which is of the same color, two shallow impressions on either 

 side, one below the shoulders, the other near the apex. Legs 

 shorter than in O. cyanoceph. 



49. Casnonia pilifera. N. 



C. glaberrima, nitidissiina (quasi lacca obducta), pilis longis sparsis 

 vestita, nigra, ore (labro excepto) antennisque brunneis, his apicem versus 

 dilutioribus, elytris maculis 2 subapicalibus argenteis, pedibus piceis, 

 femoribus basi albis, trochanteribus obscurioribus, tibiis tarsisque brun- 

 nescentibus ; long. corp. 3f lin. 



Specimina nonnulla cum prsecedente cepi. 



This elegant species is of the same size as the O. cyanoce- 

 phala, but, with the exception of the elytra and abdomen, 

 which are shorter and plumper, still more slender and grace- 

 ful. Head large, very narrow and prolonged behind, much 

 more so than in O. cyanoceph,, with two large shallow im- 

 pressions between the antenna?, and another small one just 

 above them. Occiput slightly transversely rugose. Thorax 

 very slender, half as broad as the head, of hardly the same 

 length, obconic, constricted below the apex, then gradually 

 increasing in size to below the middle, the base abruptly 

 narrowed^ cylindric and impressed with three deep annuli- 

 form wrinkles. Elytra about as long as thorax and occiput 

 together, increasing very sensibly in breadth to below 

 the middle. The apex is much more obliquely cut away 

 than in O, cyanoceph. or the preceding species. The shoul- 

 ders are full and hide the margin, just below them the elytra 

 are deeply excavated, showing, moreover, three deep longitu- 

 dinal impressions in the bottom of either excavation and a 

 slight yellowish spot^ hardly to be distinguished, at the outer 

 part of it. A round spot of silvery appearance adorns the 

 hind part of either elytron. There are two rows of long thin 



