COLASPIS. 143 



female is broader, the sides sinuate ; and the general colour of the latter sex is a lighter 

 fulvous. 



17. Colaspis melancholica. 



Ovate, convex, purplish blue below ; base of tbe antennae fulvous ; sides of thorax angulate ; above obscure 

 brownish seneous; elytra and thorax foveolate-punctate and transversely rugose, interior of punctures 

 metallic green. 



Length 2± lines. 



Head closely punctured, with two raised metallic smooth spaces in front of the antennae ; the latter longer than 

 half the length of the body, black, the five or six basal joints (the first excepted) fulvous ; thorax narrowly 

 transverse, tbe sides angulate behind the middle, surface strongly and closely punctured, the interstices 

 raised into irregular smooth spaces of different sizes and shapes, of a dark bronze colour, the extreme 

 lateral margin and the interior of the punctures of a metallic green or blue colour ; elytra convex, of the 

 same colour as the thorax, deeply and irregularly foveolate-punctate, the interstices partly transversely 

 wrinkled and longitudinally costate ; underside and legs metallic purplish blue. 



Hab. Mexico, Cordova (Edge), Tuxtla, Orizaba (Salle); Guatemala, El Reposo, 

 Zapote, Chacoj (Champion); Panama, Volcan de Chiriqui, 2000 to 3000 feet 

 (Champion). 



The sombre aspect of this species, the upperside of which is nearly black, while the 

 metallic green interior of the punctures is visible without a glass, will make it recog- 

 nizable at first sight, C. derosa, Lefev., being, as it seems, the most nearly allied form. 

 There is considerable difference in the shape of the male and female insects, the former 

 being narrowed distinctly towards the apex, and the elytral costse at the same time 

 more regularly and strongly raised. In the female the thorax is porportionally narrow, 

 and the elytra short and ovate. 



18. Colaspis suturalis. (Taf. VI. fig. 19.) 



Colaspis suturalis, Lefev. Mitth. Munch, ent. Verein. 1878, p. 123 \ 



Hab. Mexico \ Jalapa (Edge), Cordova, Tuxtla, Teapa, Playa Vicente (Salle), Yucatan; 

 British Honduras, river Sarstoon, river Hondo (Blancaneaux) ; Guatemala, Zapote, 

 Panzos, Purula, San Geronimo, Teleman (Champion); Panama, Volcan de Chiriqui 

 (Champion, Baly). — Colombia 1 . 



This pretty little species seems to have a wide range of distribution, and to have less 

 tendency to vary in colour than is generally the case with members of this genus. It 

 is easily recognizable on account of its colour, which is testaceous above, the head, 

 sutural and lateral margins, as well as the entire underside being metallic-green; 

 the punctuation of the elytra is arranged in close double lines, the interstices of which 

 are costate. The specimen figured is from Playa Vicente. 



19. Colaspis balyi. 



Ovate convex, obscure zeneous ; head and thorax closely punctured, the latter subangulate at the sides ; elytra 



deeply subgeminate-punctate-striate, the interstices closely transversely wrinkled. 

 Length 2| lines. 



