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. unicolor, 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 andes 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. affinis the posterior band is 
not nearly so curved and the breast is never black, while here 
the pygidium is never of that colour. 
