266 Mr. Frederick Bates on 



Dechius scissicollis, n. sp. 



Length 3| lines. Deep black, shining. Head sparingly- 

 punctured. Prothorax glossy, nearly impuuctate on the 

 disc, a few scattered punctures on the sides and down 

 by the median line, the latter marked by a deep crenate 

 groove, expanding behind (and within the margin) into 

 a broad ti-iangular notch ; grooved along the base, the 

 raised margin bordering this groove angularly notched 

 in the middle, this notch and the one previously men- 

 tioned opposed to each other, so that, in the middle of 

 the base, there appears a deep somewhat lozenge- 

 shaped depression : hind angles nearly right angles. 

 Scutellum pentagonal. Elytra but little broader than 

 the prothorax at the base ; convex, sub cylindrical ; 

 rather strongly striate, the stride punctured ; the punc- 

 tures not approximate ; the margins (especially at the 

 base) rather broad, rellexed, and (as also at the extremity) 

 subsinuous. Body beneath, chesnut-red, shining; under- 

 side of prothorax, legs, and terminal joints of the abdo- 

 men, piceous ; tarsi and oral organs red ; antennas red- 

 dish-brown. The tibige are very curiously sculptiired, 

 the whole surface being covered with a network of fine 

 raised sinuous lines, enclosing small, oval, rounded, or 

 angulate cells or spaces, more strongly marked on the 

 underside. 



In the $ (?) the hind tibia? are expanded and thickened 

 towards their extremity, with a dense fringe of yellow 

 hairs on their inner side, extending to one-third their 

 length from the apex. 



Hah. — New South Wales. 



I have received this insect from Paris as a species of 

 Hylobates (Dej, Cat.). 



Sub.-fam. HELOPIN^. 



D^DROsis, n. g. 



Mcnht'iu subcordiform ; wider than long; unequally 

 convex ; rather broadly emarginate anteriorly ; lahium 

 rather prominent, arcuately notched in front, last joint of 

 its palpi somewhat elongate, subcylindrical, the apex 

 truncate ; inner lobe of the omixilhe unarmed ; furnished 

 with a brush of long bristly hairs at the summit within. 



