Mr. 0. G. Lamb on Exotic Cliloropidae. 49 



proper family as Hemispharlsoma (III., p, 47). The syno- 

 nymy was given by de Meijere in Tijd. v. Ent. (vol. Ivi. 

 p. 571). In both cases the specific name selected for tiie 

 type-species had been politus, but for some reason de Meijeie 

 clianged it to beckeri, though both types were the same 

 species. 



C polita, de Meij. 



Specimens in Bur, Coll. from Talipnramba, Mal-ibar, 

 with the note ; — " In ginger-stems attacked by Dichocrocis." 



CUKOMATOPTERUM, Bcclv. 



Chromatopterum lucteiventre, sp. n. 



This species has the pubescent arista oB the Indian species 

 C. pubescens, Becker (III., p. 82), but its facies is that of the 

 African C. delicatum, Becker (11., p. 413). 



Head (top view) : — Frons almost entirely covered by the 

 brilliant shining bhick "triangle/' which has its sides con- 

 tiguous with the eyes and a rounded front margin reaching 

 to the antennal base ; its sides converge slightly to the 

 front; the only part of the frons left uncovered by it are 

 two small, dull orange, triangular patches each side in front; 

 the surface is broadly and sliallowly depressed ; the ocellar 

 hump is slightly raised and carries chestnut-coloured ocelli. 

 Side-view : — Tiie semicircular eyes cover the whole, pro- 

 jecting beyond the face and leaving practically no lower 

 jowls and only a small hind eye-border, which is shining 

 black, as is the whole hind head. The antennal 3rd joint is 

 almost orbicular, just a little longer than deep, orange on 

 lower half, t)lackened on top ; arista inserted basally, hair- 

 like except for the small pale basal joint, finely pubescent ; 

 2nd joint yellow. Face darkened orange ; })alpi black. 



Thorax (including scutelluni and pleura) all shining 

 black, the dorsum just before the scutellum and the scutelluni 

 itself very lightly dusted with orange pollen ; the rounded 

 and slightly swollen scutelluni with moderately long slightly 

 divergent end-bristles and a few accessory side-liairs. 



Wings with venation as figured by Becker (II., tab. xiii. 

 fig. 10), but the blackening is ditt'erent ; the fi'ont blackening 

 is confined to the first part of first vein, the space between 

 it and where the auxiliary vein would be (like a long stigma), 

 and the thickened black costa itself, from which a faint 

 suffusion runs on to the neighbouring cell ; the end spot is 

 smaller and discrete, it touches the costa midway between 



Ann. ih Mag. N. Hist. Ser. 8. Vol xix. 4 



