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Mr. Arthur Lea on Australian Chrysomelidae. 261 
Ditropidus tarsatus Baly. 
A female, sent as belonging to this species, from the 
British Museum, has the mtercoxal process of the pro- 
sternum longer than wide, with its posterior end semi- 
circularly emarginate and the tips acute; the hind angles 
of the prothorax also embrace the shoulders. It should, 
possibly, have been referred to Prasonotus. The species is a 
variable and widely distributed one, as there are two 
examples from Roebuck Bay (North-Western Australia) in 
the British Museum, one from Cue (Western Australia) 
and another from Parachilna (South Australia) in the South 
Australian Museum. These range in size from 3 to 4 mm., 
and have the postmedian spots on the elytra varying con- 
siderably in size and intensity (on the Parachilna specimen 
they are irregularly conjoined) ; parts of the under-surface 
are more or less deeply infuscated. The prothorax has 
very minute pubescence that could be easily overlooked 
and was not mentioned by Baly. In the male the front 
tibiae are much longer and thinner than the others, and 
the abdomen has a small and shallow subapical impression 
instead of a large fovea. 
Ditropidus sculpturatus, sp. n. 
$. Black, in parts with a more or less conspicuous coppery or 
bronzy gloss, apical half of elytra (except suture) flavous, tibiae, 
tarsi and six basal joints of antennae more or less obscurely reddish 
or testaceous. Head between eyes and in front, prosternum, 
mesosternum, sides of metasternum and of abdomen, and the 
pygidium, with more or less dense silvery pubescence. 
Head with small more or less concealed punctures, eyes large and 
almost touching. Prothorax strongly convex, the sides and base 
with dense and coarse punctures, elsewhere with sparse and very 
small ones. Scutellwum small and transverse. Llytra short, sides 
conspicuously narrowed posteriorly, with conspicuous striae con- 
taining fairly large punctures throughout. Front legs slightly 
longer than hind ones. Length (3, 2), 2-2:25 mm. 
°. Differs in being slightly larger, head with more distinct punc- 
tures (due to sparser pubescence), abdomen with a large, round, deep 
apical fovea, and front legs no longer than hind ones. 
Hab. Nortu-Western Avstratia: Baudin Island and 
Baudin Point. Types in British Museum. 
A small, compact, strongly sculptured species not very 
close to any other known to me. The eyes of the male 
