Tciicbrionicla> //-o/^i Australia and Tasmania. 41 



rather closely punctured, on the inner side and a little al)ovc 

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

 obliquely truncate at the apex and densely fringed with short 

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

 Unely })unetured, an oblong fovea on each side posteriorly ; 

 scutelluni curvilinearly triangular; elytra more convex behind 

 the middle, striate-punctate, the stria3 very shallow, the inter- 

 vals between them broad, Hat, 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- 

 tennai dull luteous, the former clouded with brown. Length 

 2^ lines. ' 



Resembles P. tetraspilotaj Hope, in coloration, but a vastly 

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

 with wdiicli the male only is armed. 



Platydema oritica. 



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

 anteunis pedibusque pallide ferrugineis. 



Hah. 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 ; scutelluni curvi- 

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

 punctate, the intervals between the stride convex, minutely 

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

 tennae 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 obeonic, and not transverse, although gradually 

 thicker outwards. 



Platydema Uma^ella. 



P. bre\iter ovata, nigra, nitida ; elytris striato-punctatis, humcris 

 luteis. 



Hah. Victoria? 



Shortly ovate, moderately convex, black, shining ; head of 

 the male with two short pointed horns, antennary ridges, 

 apex of the clypeus, and antennae luteous ; prothorax finely 

 punctured, twice as broad as long at the base, a little depressed 

 near the scutelluni, the margins luteous ; scutelluni curvili- 

 nearly triangular ; elytra striate-punctate, the intervals of the 

 striae minutely punctured, broad, and convex, the shoulders 



