60 MISC. PUBLICATION 6 9 8, U. S. DEPT. OF AGRICULTURE 



Sinoxylon conigerum Gerstacker 



Sinowylon conigerum Gerstacker, 1855, Mbnatsberichte cler Konigl. Preuss. 

 Akademie der Wissenschaften zu Berlin, p. 268 ; Lacordaire, 1857, Genera des 

 Coleopt, v. 4, p. 538; Gerstacker, 1862, in Peters' Naturw. Reise noch Mos- 

 sambique, p. 271, pi. 15, fig, 14; Lesne, 1897, Soc. Ent. de Belg. Ann. 41: 21; 

 1906, Soc. Ent. de France Ann. 75 : 470, 504-507, fig. 535 ; Lefroy, 1909, Indian 

 Insect Life, p. 317; Stebbing, 1914, Indian Forest Insects, pp. 175-176; Paoli, 

 1933, Prodv. di Ent. Agr. della Som. Ital., p. 293, fig. 149 (publication not 

 seen) ; Beeson and Bhatia, 1937, Indian Forest Rec. New Ser., Ent. 2 : 229, 291- 

 292, 309-320 ; Lesne, 1938, in Junk (pub.), Coleopt. Cat., pt. 161, p. 49. 



Body short. Black to dark reddish brown, the antennae, palpi, 

 legs, and abdomen in part, light reddish brown or brownish yellow. 



Head with four small tubercles along anterior margin, densely, 

 coarsely granulose, with a few inconspicuous hairs on front, with long, 

 fine, longitudinal, parallel costae on occiput; clypeus finely sparsely 

 granulose, with a transverse, sinuate carina near anterior margin, the 

 carina angulate at middle and extending on each side to tooth at 

 base of labrum; clypeal suture distinct; labrum very finely, densely 

 punctate. Antennal club strongly flabellate, nearly glabrous; first 

 segment of club narrowest, sides nearly parallel; second wider than 

 length of first seven segments united; third finely grooved on ante- 

 rior margin. 



Pronotum slightly wider than long, widest along basal half; sides 

 parallel posteriorly, arcuately converging anteriorly, with a small, 

 unciform tooth at apical angles; posterior angles obtusely rounded; 

 surface sparsely clothed with short, recumbent, inconspicuous hairs, 

 finely, sparsely granulose at sides on basal half, densely, imbricate- 

 punctate at middle on basal half, the imbrications elongate, densely 

 granulose and irregularly dentate on apical half, the teeth broad, 

 semierect, variable in size, and rasplike. Scutellum triangular. 



Elytra at base subequal in width to pronotum along basal half; 

 sides sometimes slightly expanded posteriorly, conjointly broadly 

 rounded at apices; submarginal carina following outline of lateral 

 margin, sharply elevated along apical declivity; surface rather 

 sparsely clothed with short, recumbent, yellowish hairs, which are 

 sparser on disk at basal half, densely, coarsely, sometimes confluently 

 punctate ; apical declivity arcuately deflexed, not margined anteriorly, 

 with two erect, conical tubercles along sutural margins at middle of 

 declivity, the tubercles narrowly separated, thickened, and dentate 

 at bases, smooth and acute at apices ; sutural margins broad, strongly 

 elevated, but not dentate along inner margins between tubercles and 

 apices. 



Body beneath densely, finely punctate, densely clothed with long, 

 recumbent, whitish hairs; last visible abdominal sternite broadly 

 rounded or subtruncate at apex. 



Length 3.5-6 mm., width 2-2.5 mm. 



Type locality. — Of conigerum, Mozambique, Portuguese East Af- 

 rica. Of unidentatum, East India. Present location of these types is 

 unknown to the writer. 



Distribution. — This species is common in India and widespread in 

 the Tropics. The adults are nocturnal and are attracted to lights. It 

 has been recorded from India, East Africa, Madagascar, Ceylon, Java, 

 Philippines, Hawaiian Islands, and Venezuela. Many specimens have 

 been examined that were intercepted at New York in derris roots from 



