BY T. G. SLOANE. 433 



Var. obtusicollis, n.var. — Specimens ($Q) from Coombungie 

 (westward from Toowoomba) have been given to me by Mr. C. 

 French. This form has the basal angles of the prothorax more 

 rounded off than var. cyaneocincta Macl., with which I have com- 

 pared it, but could not consider it identical. It differs from var. 

 viridilimbata Cast., only by the unusually obtuse basal angles of 

 the prothorax. Length, 15 mm. 



41. N. planipectns SI., var. purpurata, n.var. — The typical form 

 of N, planipectus is from Tambourine Mountain, and is wholly 

 black in colour; but a specimen, with the elytra of a beautiful 

 purple, has been given to me by Mr. H. J. Carter, who took it 

 near Murwillumbah, on the Tweed River. I can detect no other 

 difference, worth noting, except the colour of the elytra, between 

 this form and the typical form; it may well be considered a 

 variety. 



43. N.wilcoxi Cast. —In my Revision of 1902, I have indicated 

 that I thought N. subopaceus Chaud., might prove to be only a 

 variety of N. wilcoxi Cast. I have since then received four 

 specimens from Mr. J. A. Kershaw, which agree very well with 

 Castelnau's description of N. wilcoxi, and which are certainly not 

 distinct from N. subopacus; therefore, I am confirmed in my belief 

 that N. subopacus is a variety of N. wilcoxi. 



The viol aceus-gr oup. 



Prothorax with posterior marginal puncture on border at basal 

 angle. Elytra with third interstice bearing more than two 

 punctures. Intercoxal declivity of prosternum rounded. 



This group is closely related to the sphodro ides-group, from 

 which it is differentiated by having the posterior marginal punc- 

 ture of the prothorax on the border: N. gippsiensis and N. 

 rainbowi are related to the sphodroides-group, and N. violaceus 

 to the australis-group. Here, the four posterior tarsi may be 

 either with or without spinules beneath the costa of the outer 

 side of the basal joint. N. cequalis, N. baketvelli, and N. 

 tillyardi have no spinule beneath the costa (in N. tillyardi the 

 costa itself is obsolete). The other species have spinules beneath 

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