398 Records of the S.A. Museum 



the clypeus red. they differ from the male, and from males of the typical form, in 

 being more robust, eyes more widely separated, median line deeper, labrum 

 shorter, legs shorter, the front ones slightly shorter than the hind ones and 

 abdomen larger, more convex and with a large round, deep, apical fovea. A 

 female from Birchip (J. C. Goudie's No. 382). has the base of the front femora 

 red, and the elytral punctures smaller, but in other respects it agrees with females 

 of the variety. 



DITROPIDUS BASIVENTRIS sp. nov. 



cJ Black with a slight bronzy gloss, becoming coppery-bronze on head and 

 prosternum; sides of clypeus, basal half of antennae, palpi (tips excepted), and 

 legs (knees, tarsi and hind femora infuscated), more or less flavous. Head, under- 

 surface, and legs very sparsely clothed (almost glabrous). 



Head shagreened and with small dense punctures. Eyes widely separated. 

 Prothonix at base more than twice as wide as the median length, sides strongly 

 rounded; with sparse and very small punctures. Elytra short; with rows of 

 fairly large punctures, becoming smaller posteriorly and set in deep striae on the 

 sides; interstices almost impunctate. Legs not very stout; front tibiae fiat, some- 

 what curved and slightly longer than the hind ones. Length, 2 mm. 



Hab. Queensland: Longreach (A. M. Lea). Type (unique), L 10S68. 



At first glance quite an ordinary looking metallic species, but the distance 

 l)etween the eyes is equal to the length of the three apical joints of the club, the 

 interocular space appears to be circularly flattened, but on close examination is 

 seen to be slightly concave ; the prothorax is unusually wide and almost impunc- 

 tate, and its sides and apex from behind appear to form a perfect semicircle ; the 

 punctures on the basal segment of the abdomen are rather dense and coarse. 



DITROPIDUS ARMATUS, sp. nov. 



d Blue; basal half of antennae reddish, the club infuscated or black. Head, 

 under-surface, and legs with white pubescence. 



Head shagreened and with dense punctures; median line moderately Im- 

 pressed; clypeus with two small subtriangular elevations in middle. Eyes rather 

 widely separated. Prothorax about twice as wide as the median length, sides 

 strongly rounded; with dense and rather small punctures in middle, becoming 

 larger and crowded on sides, where also a few are confluent. Elytra not much 

 longer than basal width, sides rather strongly narrowed posteriorly ; with rows of 

 large punctures, on the sides set in deep striae ; interstices with small dense punc- 

 tures, and in jjlaces feebly wrinkled. Legs unusually thick, the front ones conspicu- 



