Mr. F. P. Pascoe on some new Australian Longicornia. 365 
excavata. Pedes fere ut in Aposite. Coxe antice subglobose. Acetubula 
antica longe angulata. Sterna et medipectus ut in Aposite. Abdomen 
depressum, basi angustius, elytris longius. 
This genus differs from the last in its antenne, prothorax, the 
sutural excavation of the elytra, and in the more solid and flattened 
abdomen. In these characters it agrees to a certain extent with 
Neostenus ; in that genus, however, the elytra are somewhat differ- 
ently formed, not being excavated along the suture, but each elytron 
gradually diverging and curving slightly outwards at the apex; the 
legs are also remarkably short, and the prothorax is much broader 
than the head, with a semicircular outline. 
Lysestia rotundicollis, (Pl. XVI. fig. 5.) 
L. brunnea, subnitida; prothorace rufo-castaneo, lateribus leviter sub- 
rotundatis; elytris subtestaceis. 
Hab. South Australia (Mr. Odewahn). 
Dark fulvous brown, subnitid ; pubescence exceedingly scanty ; head 
rugosely punctured, but the punctures minute ; mesial line very slight, 
and nearly confined to the vertex; prothorax somewhat corrugated, 
coarsely punctured, the sides slightly and evenly rounded ; scutellum 
broadly scutiform; elytra pale brownish testaceous, almost impunctate, 
each with three slightly elevated lines, which are more marked poste- 
riorly and unite near the apex, the apex ending in a short lateral spine ; 
body beneath and legs with a thin silvery-grey pile; antennze longer 
than the body, with a short, dense, cloth-like pile, the basal joint ex- 
cepted. Length 8 lines. 
Lysestia morio. 
L. nigrescens, subnitida; prothorace ante medium leviter constricto. 
Hab. Western Australia (Mr. Du Boulay). 
Dark brownish black, subnitid, especially the elytra; prothorax 
slightly, but very decidedly, incurved or constricted between its middle 
and apex; scutellum transverse, truncate at the apex; body beneath 
with a silvery-white pile : in other respects agrees with L. rotundicollis. 
Eroschema atricolle. 
. supra parce pilosum, atrum, nitidum, infra glabrum; elytris rufo- 
testaceis, aliquando postice atro-czruleis. 
Hab. Western Australia (Mr. Du Boulay). 
Glossy black, clothed above with short, scattered, semierect hairs, 
beneath glabrous, shining ; head and prothorax coarsely punctured, the 
latter entirely black, strongly constricted anteriorly, where also it is 
somewhat broader than in £. Powerit; scutellum rounded behind; 
elytra reddish testaceous, generally with more or less of a darker 
colour (but mostly blackish blue) posteriorly; each elytron with four 
