374 



CHRYSOMELID^. 



D. rugosa differs from D. ceylonensis in the evenly rugosely 

 punctured thorax, the latter in the last-named species has the 

 interstices irregularly reticulate. 



661. Dermorhytis violacea, sp. n. 



Violaceous ; labrum, palpi and basal joints of antennae fulvous. 



Head very closely punctured, punctures at the sides confluent, 

 studded each with a short grey hair ^ clypeus not separated from 

 the face, very closely punctured ; antennae with the basal five joints 

 piceous, apex of each fulvous, rest wanting in the type and only 

 known specimen. Thorax scarcely twice as broad as long, sides 

 rounded, angles pointed, surface punctured like the head, the 

 punctures crowded and confluent at the sides and rather larger, 

 interstices with some minute punctures, an obsolete depression on 

 each side near base, basal margin preceded by a deep transverse 

 groove. Scutellum shining, greenish, pointed. Elytra nearly 

 parallel, bluntly pointed at the apex, wider at base than the 

 thorax ; surface with a few fine rows of punctures near the suture, 

 rest of disc entirely covered with strong transverse rugae which 

 assume the shape of tubercles near apex. Body beneath clothed 

 witli fine short pubescence, tibiae and tarsi more or less piceous. 

 In the $ the thorax is more transverse in shape. 



Var. Entirely dark aeneous. 



Length 7 mm. 



Hab. Ceylon (Coll. Brit. Mus.}. 



Distinguished by its entirely violaceous colour, the rounded 

 sides of the thorax and sculpture of the elytra. 



662. Dermorhytis pnnctatissima, Juc. (Clm-solampra) P. Z. S. 



1887, p. 73. 



JSneous or dark purplish ; labrum and 

 the basal joints of antennae more or 

 less fulvous. 



Head extremely closely and rather 

 finely rugose-punctate, each interstice 



, - mttg^ff studded with a short grey hair; an- 



^^fil Hit terior border of the clypeus seinicir- 



l ddSiiiraB^. cularly emarginate ; antennae slender, 



terminal five joints slightly widened. 

 Thorax nearly twice as broad as long, 

 sides rounded at the middle, anterior 

 angles prominent ; surface sculptured 

 like the head, the punctures rather 

 larger ; interstices minutely punctured, 

 rugose at sides, furnished with short hairs 

 as on the head. Scutellum subovate, 



Dermorhytis pnnctatissima. shining, metallic green. Elytra entirely 

 covered with strong transverse rugosities, 



which near the apex become tuberculate ; area near base and 



Fig. 130. 



