250 THERMONOTUS PASTEURI. 



much less slender than in apicalis , and distinctly curved 

 backwards. The scutellum is broadly rounded at the apex , 

 and black along the middle. 



The elytra are slightly narrowing towards the apex which 

 is rounded; between the scutellum and the shoulders the 

 base projects forwards so as to form a hump on each side 

 of the scutellum ; the elytra are strongly though not densely 

 punctured, and the punctures become smaller towards the 

 suture and the apex; each elytron shows moreover two 

 almost inconspicuous longitudinal costae, one from the 

 middle of the basal hump, the other from between the 

 hump and the shoulder, both disappearing in the steel 

 blue region. 



Under surface and legs impunctate, with the exception 

 of the apical ventral segment which shows a few minute 

 punctures. Whereas in Pasteuri the prosternal process is 

 rounded in front and behind, it is in apicalis bounded in 

 front by a raised transverse ridge. The mesosternal process 

 is alike in both species. 



In the male the antennae are slightly more slender and 

 elongate than in the female, and both the pygidium and 

 apical ventral segment are truncated in nearly straight 

 lines with rounded angles. In the female, however, (and 

 this is likewise the case in the type-specimen of apicalis) 

 the pygidium and the apical ventral segment are narrowly 

 notched at the end. 



I found the described couple of this species in the Nias- 

 collection, presented to the Leyden Museum by Mr. J. D. 

 Pasteur. 



Atossa hipartita, sp. n. 9* 



Length 13 — 15 mm. — Resembling A. atomaria Pasc. ^) 

 from Penang, but easily distinguished from that species 

 by the transverse white line across the middle of the elytra 



l)'Proc. Zool. Soc. London. 186G. p. 254; pi. 26, fig. 6. 



Notes from the Leyden Miaseum, Vol. XII. 



