256 
CHRYSOMELIDiE. 
varieties of 0. vahli, Fabr., 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 he 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. 
Hah. 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. 
O 
445. Cryptocephalus colon, Suffr. Monogr., Linn. Ent. ix, 1854, p. 19 ; 
Baly, Trans. Ent. Soc. 1865, p. 69, pi. 2, fig. 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 
base hut again strongly raised round scu- 
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 
transverse in shape behind the middle 
between fourth and seventh rows, placed 
slightly more inwards than the anterior 
spot. Prosternum with anterior margin strongly produced. 
Length 4-6 mm. 
Ilah. Assam ; Siam. 
446. Cryptocephalus rajah, sp. n. 
Flavous ; antennae (basal joints excepted) black ; posterior edge 
of thorax and basal margin of elytra black; the elytra with a 
humeral and a subapical black spot. 
