SPHJEKODEHMA. 



J19 



228. Sphaeroderma geminata, Jacoby. 



Spheeroderma geminata, Jac, Notes Leyd. Mus. vi, 1884, p. 36. 

 Spheeroderma geminata, Jac, Ann. Mus. Civ. Genova, xxvii, 1889, 

 p. 192. 



Subquadrate, strongly convex. Head, prothorax, scutellum, 

 and underside shining red-brown : antennae brown ; elytra shin- 

 ing, pure, deep violaceous-blue. 



Head with vertex impunctate, but with a few minute punctures 

 on the interocular area, the latter with a depression and a faint, 

 transversely impressed, line, frontal tubercles and interocular 

 carina not developed ; eyes small, not as large as is usual in 

 Spheeroderma, the inner margin of each ey e with a deeply impressed 

 channel. Antennas extending to a certain distance beyond the 

 base of the pronotum ; first segment long and club-shaped, second 

 thicker but somewhat shorter than third, fourth about equal to 

 third ; from the fifth the segments are thickened and slightly 

 darker. Prothorax much broader than long, sides rounded, anterior 

 lateral angles slightly but acutely produced, posterior margin 

 •sinuate on either side, with a median lobe ; surface strongly and 

 more or less closely punctate, the punctures towards the base 

 somewhat finer. Scutellum small, triangular, impunctate. Elytra 

 hardly broader at base than prothorax, punctate-striate, the longi- 

 tudinal rows arranged in pairs, but the punctures in each row not 

 regularly arranged ; on each elytron there are about ten pairs, 

 while along the lateral margin is a broad, so-called impunctate, 

 space, bounded on the extreme margin by a row of strongly im- 

 pressed punctures ; interstices extremely minutely punctate. 



Length, 4 mm. 



Stjmatea: Benculen (type-locality), iv. 1891 (E. Modigliani). 

 Type probably in the Ley den Museum. 



The above description is drawn up from one example in the 

 British Museum which bears Modigliani's locality-label and the 

 label of identification in Jncoby's handwriting. In 1889, while 

 working out Tea's collection, Jacoby found a specimen from 

 Bhamo, Burma, which, in his opinion, agreed with the Sumatran 

 insect; but I have not seen this specimen from Bhamo. It is, 

 however, at least certain that the paired arrangement of the 

 elytral punctures occurs in species from the region under review ; 

 (whether this character should be made the basis of a new genus, 

 it is not possible to say in the light of the material at present 

 available). This species is, therefore, here placed in Spheeroderma 

 and also included in the key. 



229. Sphaeroderma discicollis, Jacoby. 



Spheeroderma discicollis, Jac, Ann. Mus. Civ. Genova, xxxii, 1892, 

 p. 929. 



Form less oblong, more rounded. Head, antennas, underside 

 and legs brown ; pronotum red-brown, with a large ill-defined 



