20S 



impression reaching almost to the sides at tlieir posterior sinu- 

 osity ; anterior margin truncate between tiie lateral borders ; base 

 truncate, not bordered ; anterior angles advanced, obtuse, their 

 inner margin slightly oblique ; basal angles rectangular; lateral 

 border entire, thick, gradually widening in front from anterior 

 marginal puncture, narrower and equal backwards from that 

 puncture, lightly sinuate before the base ; median line lightly 

 impressed, not reaching either margin. Elytra smooth, oval 

 (16'5 X 10 mm.) subparallel on sides, gently rounded to peduncle 

 and to apex, convex, very declivous behind, hardly at all 

 declivous to peduncle behind scutellum ; suture lightly impressed ; 

 border narrow, becoming wider behind ; a row of unequally and 

 widely-placed punctures at a little distance from the margin. 

 Presternum transversely impressed in front of coxa^, rounded 

 behind and projecting slightly backwards, not excavate between 

 coxffi, sharply declivous to anterior margin. Venti-al segments 

 smooth, impunctate. Femora broad, flattened, very liglitly 

 channelled below for whole length ; posterior ones strongly dilat- 

 ate on lower side behind middle : anterior tibise with external 

 edge smooth, not ending in a dentiform jarojection at apex ; four 

 posterior tibi;e dilatate at apex, their t)uter edge not concave ; 

 posterior trochanters (in t]\e male) very long, pointed, bent 

 inwards near apex : posterior tarsi short, thick ; joints 1-4 suc- 

 cessively shorter — first, short (not as long as two succeeding ones 

 together), 2-4 short, In'oad, turbinate, last convex, not narrowed 

 to base. 



Length, 28 ; breadth, 10 mm. 



Habitat. — Murchison District, West Australia. 



This species is readily distinguished from P. grandis, Castelu., 

 by its more elongate form. Five specimens have come under my 

 notice ; three of these agree in all particulars with the descrip- 

 tion given above, and one of these is certainly a male. The other 

 two are female.s, and differ from the description only in the 

 shape of the posterior trochanters, which are almost as in Parroa 

 grandis (female), being oval and narrowed to the bluntly-pointed 

 apex, and not elongate, narrow, and bent as in the other specimens. 

 The elongate bent posterior trochanters seem peculiar to the 

 male ; the male of both P. grandis and P. llowitti may be 

 expected to have similar trochanters. The posterior coxa; in 

 all these specimens have each a single puncture near the inner 

 margin a little before the insertion of the trochanters. The male 

 alluded to above I have received very recently from Mr. French, 

 of Melbourne, as coming from the Gnarlbine Goldfields, W.A. It 

 is a fresh and perfect specimen, and has the apex of tlie anterior 

 tibia; fringed on their inner side with fulvous hair and produced 

 forward in a strong spur about half as long as the inner apical 



