COLASPOSOMA. 451 



c? . Head closely and rather strongly punctured ; clypeus 

 strongly rugose at base, with an elongate tubercle at the middle of 

 the latter ; surface strongly rugosely punctured ; antennae with dis- 

 tinctly thickened terminal joints, basal joint metallic, following four 

 or five joints dark fulvous, rest blackish, terminal joint elongate, 

 third rather longer than the fourth. Thorax more than twice as 

 broad as long, scarcely narrowed anteriorly, sides rounded ; surface 

 finely and closely punctured, punctures slightly larger and partly 

 confluent at the sides, those on the disc finer than the punctures 

 on the head. Scutellum very broad, half as broad again as long. 

 Elytra about two and a half times longer than the thorax, with a 

 distinct but short depression below the base, interior of depression 

 strongly punctured, rest of surface very finely punctured in irre- 

 gular rows, these rather distantly placed at base but closer and 

 irregular towards apex. The male organ is strongly curved, very 

 gradually narrowed anteriorly, the upper cavity is elongate and 

 bounded by an acute ridge or edge. 



$ . The elytra more closely and strongly punctured although 

 comparatively finely so, but the punctures are larger than those 

 on the thorax ; the rugosities at the sides of the elytra are scarcely 

 more strongly developed than those in the male. 



Length 4% mm. 



Hob. Bengal ; Pondicherry ; Bangalore ; Assam ; Burma ; 

 Ceylon ; Sumatra. 



Specimens from Ceylon are generally metallic cupreous in colour. 

 The species seems closely allied to G. splendidum, Fabr., which is 

 a doubtful species, but according to Baly an insect of 7 mm. in 

 length. This author in his description of Fabricius's supposed 

 species makes no mention of the sex he had before him, without 

 which no recognition of a species in this genus is certain. One 

 of the principal characters of distinction is the black abdomen. I 

 cannot find sufficient differences between the type from Sumatra 

 and the Indian specimens to warrant their separation. 



788. Colasposoma splendidum, Fabr. (Chrysomela) Ent. Syst. \, 

 1792, p. 324 ; Baly, Trans. Ent. Soc. (3) iv, 1867, p. 275. 



Metallic green or blue ; antennae, palpi and tarsi black. 



cJ . Head finely and remotely punctured, finely strigose above 

 the eyes ; clypeus with a deep fovea at base ; basal joint of antennae 

 metallic blue or green, terminal five joints slightly thickened, longer 

 than broad, third and fourth equal. Thorax more than twice as 

 broad as long, sides strongly rounded, disc evenly and finely punc- 

 tured. Elytra with short depression below base, rugose within 

 the depression, rest of disc punctured like the thorax, the punctures 

 irregularly placed. Body and legs metallic green. The male 

 organ is short, only moderately curved, with high lateral ridges, 

 the apical portion is strongly deflexed and gradually terminates in 

 a point. 



Len</th 6-7 mm. 



