553 



and legs (except coxae, parts of femora, and parts of hind 

 tibiae). The elytra of the type appear to be tipped by 

 remnants of an extremely short membrane. 



Group 16. 



LlPARETRUS SEMIATRICEPS, 11. sp. 



PL xxxvii., fig. 135. 



Flavous; head black between eyes, parts of sterna 

 infuscated. Under-surface rather densely pilose, upper- 

 surface glabrous except for a fringe of stout setae on each 

 side of pronotum, for a few hairs on each side in front, and 

 for a few marginal and apical setae on elytra, hind parts 

 glabrous except for a few fringing hairs. 



Head with crowded and small punctures, a few of which 

 are transversely confluent, immediately behind clypeal suture 

 a very narrow polished impunctate space; clypeus with sparser 

 and somewhat larger punctures than between eyes, sides 

 oblique (with somewhat sinuous outlines) to apex, which is 

 strongly elevated and truncated. Antennae eight-jointed. 

 Prothorax shagreened, sides rounded, hind angles rounded off, 

 the front ones produced and acute, median line vaguely 

 indicated ; with small and fairly dense, but not crowded punc- 

 tures. Elytra with fairly dense and rather small punctures; 

 geminate-striae distinct; without apical membrane. Hind 

 parts with dense and small subasperate punctures, and finely 

 shagreened. Front tibiae tridentate ; two basal joints of hind 

 tarsi equal. Length, 9 mm. 



flab. — Australia (Blackburn's collection). Type (unique), 

 I. 7859. 



Belongs to FF, of Group 16, but (as pointed out under 

 notes on fallax), I do not consider that G and GG (hind 

 angles of pronotum defined or not) are warranted. On this 

 species the hind angles are completely rounded off (as they 

 are on most species of the genus), hence in that table it would 

 be associated with atriceps, from which it differs in being more 

 robust, and in the much denser and smaller punctures of the 

 prothorax, elytra, and hind parts; the punctures are very 

 much denser than on the type (and also on a co-type and 

 many other specimens) of fallax, the clypeus is less narrowed 

 to the apex, and its sides and apex are more strongly reflexed ; 

 from Macleay's description of rnonticola (tabled by Blackburn 

 as having the punctures of the pronotum 'quite sparse" in 

 comparison with those of fallax) it differs in many particulars 

 of colour and punctures. From certain directions the front 

 margin of the clypeus appears to be widely truncated, with 

 the lateral angles obtuse, but not rounded ; from directly 



