150 



cueculionid.t:. 



112. Astycus immunis, Walk. 



Astycus immtmis, Walker,-* Ann. Mag. Nat. Hist. (3) iii, 18o9^ 



p. 263. 

 Strophosomns siituralis, Walker,* 1. c. p. 262. 

 ? Arhines destructor, Nietner, Kev. Zool. 1864, p. 120. 



Colour black, with uniform green or coppery scaling, which is 

 usually denser and more yellow along the sides of the prothorax 

 and elytra. 



Head shallowly punctate, the forehead plane, slightly wrinkled 

 and with a narrow central furrow ; eyes elliptical, moderately 

 convex. Rostrum about as long as broad, slightly narrowed to 

 the apex, more or less shallowly impressed above, with a very 

 broad and deep central furrow on the basal two-thirds, and a 

 single fairly sharp marginal carina, followed by a shallow longi- 

 tudinal impression. Antenna' red-brown, the funicle with joint 1 

 longer than 2, 3 scarcely longer than 4, 7 transverse ( c? ) or as 

 long as broad ( $ ). Prothorax about as long as broad in the c? , 



Fig. 48. — A^ti/cus immunis. Walk. 



broader than long in the $ , its sides subparallel from the base to 

 the middle, then narrowed iu a curve to the apeX; the basal 

 margin shallowly bisinuate, the upper surface more convex longi- 

 tudinally in the S , rugosely and confluently punctured, and with 

 a deep narrow central furrow from the base nearly to the apex, 

 the scales small and separated. Scutellum transverse. Elytra 

 with the sides parallel from the shoulders to the middle in tlie (S , 

 slightly ampliated in the $ , broadly rounded behind, the shoulders 

 sloping and not prominent, the apices not mucronate, punctato- 

 striate, the intervals broad, smooth and slightly convex : scales 

 larger and much denser than on the prothorax, their surface uneven 

 and scintillating in the J , more opaque in the 5 , the setae 

 minute and recumbent. Legs blackish ; the tibia3 not sulcate, the 

 upper edge of the hind corbels but little raised above that of the 

 tibiae and forming an obtuse angle at the end. 



