HORN EXPEDITION—COLEOPTERA. 
291 
postice subtiliter granulato-i’ugato ; rostro brevi cuui capite continuo et quam hoc 
vix angustiori, ad apicem eniarginato, carinis externis et interiiis obliquis paruin 
elevatis; protliorace quam longiori baud (maris) vel vix (feminte) latiori, confertim 
(quam T. rufipedis paullo minus grosse minus crebre) tuberculato, antice quam 
trails basin paullo latiori, latitudine maxima fere ad marginem anticum posita, 
lateribus parum arcuatis ; elytris sat convexis, confuse subseriatim crebre granulis 
vel tuberculis parvis instructis, angulis humeralibus tuberculiformibus, apice baud 
spiniformi; tarsis sat elongatis. 
Maris segmento ventrali ultimo latissime impresso, parte depressa ad latera 
carinata; tibiis intermediis ante apicem intus late emarginatis ; femoribus anticis 
dilatatis. 
Femime segmento ventrali ultimo ad apicem tuberculo parvo armato j 
pedibus simplicibus. Long. 6—7i 1. Lat. 2|—1. 
It is noteworthy that two species from one locality and so widely distinct 
inter se as are this and the preceding nevertheless possess in common two characters 
so unusual in the long series of Talaurini as legs of red colour and a remarkable 
sexual structure of the intermediate tibiae. The most conspicuous superficial 
distinctions of this species from the preceding (Z! rufipes) are its much smaller 
size and the much finer, closer, and more confused sculpture of its elytra. I have 
no other Talaurinus in my collection in which the tubercles and granules (of 
various sizes but none of them large) are so numerous and confusedly intermingled. 
The present insect may also be at once distinguished from T. rufipes by the 
different structure of the apical ventral segment in the male, which bears (instead 
of a feebly limited almost square impression, with a small deep fovea near its 
apex) only a deep and strongly transverse impression, with its lateral edges very 
sharply defined by a kind of carina. 
Crown Point. 
SCEERORHINUS. 
S. (Talaurinus') convexus, Sloane (5). Mr. Sloane has been so generous as to 
send me his unique type of this species for inspection. It appears to be a some¬ 
what narrower and more parallel insect than the specimens in the Horn collection 
of the same sex, but I cannot see any sufiicient character for regarding it as a 
distinct species. Altliough Mr. Sloane described it as a Talaurinus I am unable 
to follow him in that assignment, concerning which he felt doubtful himself. The 
sexual characters are certainly those of a Sclerorhinus. 
Deering Creek, Tempe Downs, Hermannsburg. 
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