368 Oil 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 cox£e 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 coxse, 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 ; epipleurse 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 tibise, densely clothed with fine silky hairs beneath, 

 simple, the basal joint of the hind pair rather longer than tlie 

 third and fourth joints united ; body elongate, depressed, fully 

 Avinged. 



This genus is proposed for a single species from Tasmania, 

 It belongs to the group Trachelostenides of the Lagriidfe, 

 following the system of Lacordaire. The only known genus 

 of the Trachelostenides, 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 ; antennae testaceous, the basal joints stained with 

 piceous ; legs pitchy brown, the base of the femora, the outer 

 half of the tibise, 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 tlie 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 irregular 

 double rows of very shallow areolae, which are separated by 

 feebly raised longitudinal lines, the areolaj here and there 



