50 MARTIN JACOBY 
and the last one in the male being dilated and terminating into 
a point at the sides; the strongly dilated shape of this species 
which it has in common with A. wnicolor, further separates it 
from others, similarly coloured. A species from Sumatra, con- 
tained in my collection agrees entirely in every respect, except 
that of colour with the present one. I refer the Sumatran in- 
sect to A. luteicornis Fab. or A. simplicipennis Clark and it is 
possible that A. dilatata is only an unicolorous variety of that 
species. 
16. Aulacophora pectoralis, n. sp. 
Testaceous; head and thorax fulvous; antennae black, the 
first joint fulvous; elytra black, a broad transverse band at the 
middle and the apices, fulvous; breast, the apices of the tibiae 
and the tarsi black. 
Length 3 lines. 
Head impunctate ; eyes very large; labrum and jaws black; 
antennae rather robust in the male, the lower joints slightly 
dilated, third and fourth equal; thorax impunctate, the transverse 
groove deep; scutellum fulvous; elytra extremely finely punc- 
tured, the fulvous band of the same width as the anterior black 
portion, its posterior margin concave, the apices fulvous; pygi- 
dium testaceous. 
Hab. Australia, Somerset (L. M. D’Albertis). 
A. pectoralis although closely allied to A. affinis and perhaps 
also to A. Cartereti Gutr., may be distinguished by the black 
breast and antennae which have the first or the first 2 joints 
fulvous; if the fulvous of the elytra is taken as the ground 
colour, the latter, have a perfectly straight black transverse 
band at the base, touching the margins and another more 
curved band near the apex; in A. a/finis the posterior band is 
not nearly so curved and the breast is never black, while here 
the pygidium is never of that colour. 
