280 Mr. F. P. Pascoe on neio Oenera and Species of 



neatli, legs, and antennas glossy reddish testaceous. Length 

 2;^ lines. 



Platydema^ aries. 



P. ovalis, modice convexa, nigra, nitida; elytris striato-punctatis, 

 fasciis duabus, ad suturam interruptis. luteis. 



Hah. Brisbane. 



Oval, moderately convex, black, shining ; head finely and 

 rather closely punctured, on the inner side and a little above 

 each eye, in the male, a short vertically compressed horn, 

 obliquely truncate at the apex and densely fringed with short 

 yellowish hairs ; prothorax twice as broad at the base as long, 

 finely punctured, an oblong fovea on each side posteriorly ; 

 scutellum curvilinearly triangular 5 elytra more convex behind 

 the middle, striate-punctate, the striae very sliallow, the inter- 

 vals between them broad, flat, and minutely punctured ; near 

 the base a broad yellow band, and a similar one near the apex, 

 both interrupted at the suture ; body beneath, legs, and an- 

 tennae dull luteous, the former clouded with brown. Length 

 2^ lines. 



Resembles P. tetraspilota^ Hope, in coloration, but a vastly 

 more bulky insect, and remarkable for the form of the liorn, 

 with which the male only is armed. 



Platydenia oritica. 



P. ovalis, modice convexa, nigra, nitida ; elytris striato-punctatis ; 

 antennis pedibusque pallida ferrugineis. 



Hab. Victoria? 



More broadly oval than the last, glossy black ; head of the 

 male with two horizontal triangular and acuminate horns, 

 tipped with ferruginous, between the eyes ; prothorax as in 

 the last, but narrower and more convex ; scutellum curvi- 

 linearly triangular ; elytra more convex at the middle, striate- 

 punctate, the intervals between the striae convex, minutely 

 punctured ; body beneath dark glossy brown ; legs and an- 

 tennse yellowish ferruginous. Length 2^ lines. 



Dr. Howitt has not given me the locality of the above, nor 

 of the following, which differs in some degree generically from 

 Platydema in that the fourth, fifth, and sixth joints of the an- 

 tennae are obconic, and not transverse, although gradually 

 thicker outwards. 



Platydema limacella. 



P. breviter ovata, nigra, nitida ; elytris striato-punctatis, humeris 

 luteis. 



Ilab. Victoria? 



* De Cast, et Brull^, Ann. d. 8ci. Nat. xxiii. p. 850. 



