368 On a new Genus of Heteromerous Coleoptera. 
at the sides, the base and apex subtruncate, the apex with a 
fine reflexed marginal carina, the lateral margins reflexed ; 
scutellum strongly transverse, rather large; elytra broad and 
depressed, about one third wider than and more than four times 
as long as the prothorax, broadly truncate at the base, sub- 
parallel for two thirds of their length, confusedly punctured, 
the humeri rounded ; anterior coxee somewhat conical, strongly 
exserted, subcontiguous, the prosternum not raised between 
them, the cavities closed behind ; mesosternum largely deve- 
loped anteriorly, feebly transversely depressed before the 
middle coxee, the latter slightly exserted, narrowly separated, 
with widely open cavities and large trochantin; metasternum 
elongate, deeply longitudinally grooved in the middle behind ; 
intercoxal process subtriangular; epipleure extending nar- 
rowly to the apex ; legs rather elongate, very slender, sparsely 
clothed with rather long hairs, the femora slightly swollen 
beyond the middle, the tibial spurs short; the tarsi shorter 
than the tibie, densely clothed with fine silky hairs beneath, 
simple, the basal joint of the hind pair rather longer than the 
third and fourth joints united ; body elongate, depressed, fully 
winged. 
This genus is proposed for a single species from Tasmania. 
It belongs to the group Trachélosténides of the Lagriide, 
following the system of Lacordaire. The only known genus 
of the Trachélosténides, Trachelostenus, Sol., is from Chili. 
Sirrhas limbatus, sp. n. 
Elongate, rather broad, subparallel, depressed; pitchy 
brown, the margins of the prothorax narrowly and indeter- 
minately ferruginous, the elytra broadly bordered with obscure 
testaceous; antennee testaceous, the basal joints stained with 
piceous ; legs pitchy brown, the base of the femora, the outer 
half of the tibiae, and the tarsi entirely testaceous ; the upper 
surface with scattered, short, fine, semierect hairs. Head 
thickly, irregularly punctured ; prothorax about one fourth 
broader than long, much wider at the apex than at the base, 
widest a little behind the middle, the sides thence to the base 
obliquely and abruptly converging, the anterior angles strongly 
rounded, the hind angles very obtuse, the disk a little flat- 
tened at the base in the middle, the surface densely, mode- 
rately finely punctured, more sparsely so towards the sides 
anteriorly, the punctures on the middle of the disk showing a 
tendency to become longitudinally confluent ; elytra densely, 
very irregularly, moderately finely punctured, with regular 
double rows of very shallow areole, which are separated by 
feebly raised longitudinal lines, the areole here and there 
