NEW PHYTOPHAGOUS COLEOPTERA ol 
17. Aulacophora semiopaca, n. sp. 
Black; head, antennae and thorax fulvous; elytra opaque , 
scarcely punctured, black, one or two spots at the base and the 
posterior half, fulvous. 
Var. a. elytra black, the extreme apices fulvous only. 
Var. b. the black portion of the elytra divided by two fulvous 
longitudinal stripes. | 
Var. c. elytra with 2 transverse black bands. 
Length 31/,-41/, lines. 
Head impunctate, fulvous; antennae two thirds the length 
of the body, testaceous, the apex of the last joint sometimes 
piceous, the first two joints shining, the others pubescent, third 
and fourth joints of equal length; thorax very finely and 
rather closely punctured; scutellum fulvous; elytra semiopaque, 
more distinctly punctured than the thorax, the black portion of 
variable extend, sometimes occupying half the length of the 
elytra, sometimes nearly extending to the apices and in the 
varieties interrupted by the narrow fulvous basal margin or 
one or two longitudinal fulvous stripes; the undersides and legs 
black, the sides of the anterior femora more or less testaceous 
as well as (in some specimens) the epipleurae anteriorly; in the 
female the elytra show more or less distinct traces of longitu- 
dinal costae. 
Hab. Sumatra, Ajer Mantcior, Mt. Singalang (O. Beccari). 
I cannot refer this species to A. bicolor Weber, who describes 
the elytra as bluishblack and the breast as testaceous as well 
as all the coxae which is not the case in any of the 23 spe- 
cimens before me in which the entire underside, with the 
exception of that of the thorax, is black. In a single specimen 
the elytra have a transverse black band at the base and another 
below the middle, in other respects this variety agrees with the 
other specimens. 
