Mr. F. P. Pascoe on some new Australian Longicornia. 353 
Head subglabrous, coarsely punctured, broader and more convex in 
front than H. marginicollis; antennse entirely dark reddish brown, 
almost glabrous, except the fringe beneath, the scape rather short and 
very decidedly obconical; prothorax considerably broader than the 
head, closely and roughly punctured, clothed with a very dispersed 
pile; elytra ovate, tomentose, whitish or pale grey, with black spots 
larger and more confluent towards the apex, the base remotely and 
strongly punctured; body beneath and legs dull chestnut-brown, 
sparingly pubescent. Length 5 lines. 
Hebesecis* is one of the most difficult of the Australian Longicorn 
genera. The varieties of H.marginicollis seem almost endless ; there- 
fore it is not without hesitation that I propose this and the following 
as decidedly good species. Comparing an ordinary example of H. 
marginicollis with H. Germari, no two congeneric insects could ap-. 
pear more distinct ; but the crowd of forms which branch off from 
the former throws, I must admit, an uncertainty upon all of them. 
Nevertheless, from the number of carefully ticketed specimens which 
I received from Australia, the conclusion of their being nothing more 
than varieties does not seem to have been arrived at there, where, of 
course, there must be much better means of deciding the point. H. 
australis and H. crocogaster are also very variable, but at the same 
time they have certain well-marked characters which render them 
easy of recognition. Putting colour out of the question as not to be 
depended on, the principal characters on which I rely for the dis- 
tinctness of this species are the greater breadth of the head and pro- 
thorax, especially the latter, the close, curled, longish pile of the 
elytra, and the remoter punctation of their base. 
Hebesecis antennata. 
#, fusca ; antennis annulatis, scapo elongato; prothorace capite multo 
latiore ; elytris trigonatis, pube sparsa grisea maculatis, basi lateribusque 
subremote punctatis. 
Hab, Port Dennison (Mr. Macleay). 
Head broad and convex as in the last species, but covered in front 
with long, slender, nearly white hairs, almost hiding the roughly punc- 
tured derm beneath; antennz nearly twice as long as the body, black, 
pubescent, the fourth and fifth joints at the base, and the sixth and 
eighth entirely, greyish white, the second and third joints considerably 
longer than in either H. marginicollis or H. Germari; prothorax much 
broader than the head, closely punctured, nearly or entirely glabrous, 
except a broad patch of whitish hairs at the side above the lateral spine ; 
elytra trigonate, thinly pubescent, the pubescence chiefly confined to 
* Hebesecis= Hebecerus, Thoms. I have been obliged to change the name in 
consequence of its having been previously used for a genus of Hemiptera. 
