256 CHRYSOMELID.E. 



varieties of 0. vdhli, Pabr., and mentioned by this author in the 

 description of the species. There is nothing in that of Duvivier 

 which points to a specific distinction. 



Var. piceitarsis, Jac. I find, on further examination, that this 

 form also cannot be separated from C. vahli, Fabr., of which it 

 forms a unicolorous variety. With the exception of the tarsi, 

 all the upper surface is fulvous, the terminal joints of the antennae 

 and the tarsi alone being blackish. 



Length 3-4 mm. 



Hob. Generally distributed throughout India and Ceylon. 



A common species. There are some forms in which the elytra 

 have four spots, two at base and two at middle, others in which 

 the elytra are black with the apex flavous only, and many other 

 intermediate varieties. One of the latter is figured here. 



445. CryptOCephalllS colon, Suffr. Monoyr., Linn. Ent. ix, 1854, p. 19 ; 



Baly, Trans. Ent. Soc. 1865, p. 69, pi. 2, tig. 1. 



Light flavous ; terminal joints of antennae, the margins, two 

 spots on elytra (1 . 1), and scutellum black. 



Broad, posteriorly narrowed. Head very sparingly punctured ; 

 antennae with basal joint elongate, third joint twice as long 

 as second, slightly shorter than fourth, 

 following strongly widened, basal joint 

 flavous, following three darker, rest black. 

 Thorax short, sides broadly rounded and 

 narrowed anteriorly, surface very finely 

 and remotely punctured. Elytra nar- 

 ,..,., rowed posteriorly, deeply depressed at 



L^^^^-TT^ base but again strongly raised round scu- 



1 / !% tellum, shoulders feebly convex ; surface 



very finely punctate-striate, the punctures 

 very fine near apex, interstices very finely 

 and sparingly punctured, all margins nar- 

 rowly black ; an anterior black spot on 

 shoulders slightly elongate, a second spot 

 Fig. 100. transverse in shape behind the middle 



Oryptocepkafas colon. between fourth and seventh rows, placed 

 slightly more inwards than the anterior 

 spot. Prosternum with anterior margin strongly, produced. 

 Length 4-6 mm. 

 Hab. Assam ; Siam. 



446. Cryptocephalus rajah, sp. n. 



Plavous ; antennas (basal joints excepted) black ; posterior edge 

 of thorax and basal margin of elytra black ; the elytra with a 

 humeral and a subapical black spot. 



