Lea — On Australian Coleoptera 387 



the sides; on D. u'ujricoUis the proiiotum is densely strigose throughout, and the 

 eyes are larger and less widely separated. The seriate punctures on the elytra are 

 infuscated. and so for small ones, are unusually distinct. On the male the clypeus 

 and lahrum are rather obscurely flavous. but on the females these parts are of a 

 rather bright red. and the red extends as a triangle to half-way between the eyes ; 

 <in the male the flavous [jarts of the pronotum are rather obscure and strictly 

 lateral : on the female its pale portion is more reddish, and extends from side to 

 side and to the front angles, leaving a semicircular dark apical space, differing 

 in extent on the two specimens before me ; on the elytra of the female the infusca- 

 tions are better defined than on the male, and on each the most conspicuous one is 

 an oblong spot in the centre of the disc, between the third and fourth rows of 

 punctures. 



DITROPIDUS NIGRIBASIS sp. nov. 



d' Reddish, liasal half (more or less) of head and club infuscated; elytra 

 flavous. a narrow basal erlging (common to the prothorax and scutellimi) black, 

 tarsi infuscated. t'nder-surface and legs sparsely clothed, the head still more 

 sparsely. 



Head shagreened and with small dense punctures ; median line feeble. Eyes 

 widely separated. Prothorax more than twice as wide as the median length ; 

 with small dense punctures in middle, the sides densely strigose. Elytra with 

 rows of rather small but distinct punctures, on the sides set in rather deep striae. 

 Length {6 9 ) . 2-2 -25 mm. 



9 Differs in being slightly more robust, antennae somewhat thinner, eyes 

 more distant, prothorax slightly longer, elytra less narrowed posteriorly, legs 

 somewhat shorter and in the abdomen. 



Hab. .Vustralia (Blackburn's collection); \^'estern Australia: Swan River 

 (A. M. Lea). Type. I. 10971. 



A small pale species, which difl^ers from the description of D. fulviis in 

 having the head not glabrous, the prothorax redder than the elytra, and the tarsi 

 infuscated. It is allied to D. nigricollis. but differs in having longer antennae, 

 pronotum with distinct punctures about middle, instead of strigose throughout, 

 and under-surface with no part black. From the preceding species, to which it is 

 structurally very close, it differs in having the prothorax entirely red, except 

 for the basal edging (on one male, however, there is a slight discal infuscation). 

 \vith the strigae of the sides more extended, the elytra without infuscated spots, 

 and the under-surface of the male nn darker than that of the female. The muzzle 

 is paler than the base of the head, but the shades of colour gradually change ; the 

 abdominal fovea of the female is unusually large. The antennae are somewhat 



