454 CHRYSOMELID^E. 



Far. Above metallic dark green or blue ; thorax with purplish 

 margins ; elytra with purplish band as in typical form. 



Length 5-7 mm. 



Hob. Southern Bombay : Belgaum ; Sangir. 



Not unlike some forms of C. pulcherrimum, but with longer and 

 more pronounced purplish elytral band, which extends angularly 

 nearly to the suture at the base. C. aureo-vittatum, Baly, has 

 differently sculptured upper surface. In the variety, which I 

 formerly considered a distinct species, the elytra are entirely 

 blue with a darker purplish band, but there is no structural 

 difference of importance. 



792. Colasposoma auripenne (PI. II. fig. 9), Motsch. in Schrenck, 



Reise Amur, ii, p. 179 (1860). 

 Colasposoma pulcherrimum, Baly. Dcscnpt. new gen. $ sp. Phytoph. 



1864, p. 15. 

 Colasposoma mutabile, Baly, Trans. Ent. Soc. (3) iv. 1867, p. 273. 



Metallic green, aeneous or purplish ; antennae (base excepted) 

 black ; elytra aureous, trigonal patch below base and the suture 

 and margins purplish-blue. 



cf . Head strongly and rather closely punctured, with raised 

 strigae on the sides above the eyes ; clypeus strongly punctured, a 

 distinct tubercle placed at the middle of its base ; antennae with 

 the apical five joints distinctly widened. Thorax twice as broad 

 as long, sides rounded, surface strongly and closely punctured, more 

 conspicuously at sides than at middle. Scutellum subquadrate, 

 sides oblique and pointed at apex. Elytra scarcely perceptibly 

 depressed below base, more strongly punctured than the thorax ; 

 punctures very closely placed in irregular rows, larger on the side 

 below the shoulders, the interstices at the latter place slightly 

 rugose. 



$ . Head strongly rugosely-punctured and strigose, punctura- 

 tion of thorax and elytra more closely placed than in the male, 

 sides of elytra strongly rugose and wrinkled. 



Far. Above metallic green, elytral purplish spot obscure. 



Length 4|-5 mm. 



Hab. Amur ; India ; Burma ; Andaman Islands ; Malayan 

 Subregion ; China. 



I identify this as C. auripenne of Motsch. It is comparatively 

 easy to distinguish in the typical form, which has the elytra blue, 

 the sutural and lateral margins and transverse spot below base 

 purplish. The species must not be confounded with C. ornatum, 

 Jac. nor C. aureovittatum, Baly, in both of which the sculpture is 

 quite different. C. mutabile, Baly, does not seem to differ, and as 

 the type of C. pulcherrimum, but not of C. mutabile, is in this 

 author's collection, the insect has evidently been described in 

 error under two different names. 



The specimens from the above different localities show no 

 marked differences, nor can I find any in the male genitalia. 



