350 Mv. G. (\ C'liampion on 



i-etitris, Ab., by tlie ronglily sculptured, immaculate elytra, 

 the closely punctured head, etc. Tlie (^ tarsal structure 

 removes A. perrini from Carphurus and its allies. 



HeLCOG ASTER. 

 Helcogaster, Boheman, Res. Eugeu. p. 81 (1858). 



Tlie Rhodesian insect referred to this genus is allied to 

 the Hawaiian H.pectifiattts, Sharp; but it differs from Helco- 

 gaster, as adopted by Lea in 190y and 1921*, in iiaviiig the 

 liead simple in the two sexes, the antennae strongly pectinate 

 in ^ , and the basal joint of the anterior tarsi in this sex 

 simply thickened and without comb. Boheman's types were 

 from Australia and their sex not stated. His genus is 

 douljtfully distinct from Carphurus, Er. Both are abun- 

 dantly represented in Australia, the Malayan Region, South 

 India, etc. 



1. Helcogaster vitreatas, sp. n. 

 (PL \l. tig. 42, antenna, ^ •) 



(J . Moderately elongate, shining, clothed with scattered, 

 erect, bristly hairs ; black, the two basal joints of the antennae 

 testaceous beneath, the elytra each with an elongate, broad, 

 oblique, translucid, flavescent patch extending downward 

 from the shoulder to near the apex ; the head and prothorax 

 very sparsely, minutely, the elytra strongly, diffusely punc- 

 tured. Head short, narrower than the prothorax, simply 

 bi-impressed in front, as in $ ; antenna3 rather short, stout, 

 strongly pectitiate from joint 4 ouward. Prothorax broader 

 than long, rounded at tlie sides. Elytra wider than, and 

 about twice the length of, the prothorax, leaving five abdo- 

 minal segments exposed. Legs rather stout; tarsi compara- 

 tively short, joint 1 of antei'ior pair much stouter than 2—4, 

 without comb; posterior tibiae curved. 



? . Antennse shorter, sharply serrate ; anterior tarsal 

 joints 1-4 short, subequal ; posterior tibiae straight. 



Length 41 mm. 



Hub. N.W. Rhodesia, Nama - ula [H. C. Dullman: 

 ix. 1914). One pair. 



* Trans. Ent. Soc. Lond. 1909, p. 213; Traus. R. Soc. S. Australia, 

 xlv. p. 107 (1921). 



