BY ROWLAND E. TURNER. 1 39 



nearly twice as broad in front as long. Pronotum much narrower 

 than head, almost smooth, narrowed posteriorly, as long as the 

 breadth on the anterior margin, which is straight, the surface 

 flattened, with a longitudinal median carina and the lateral 

 margins slightly raised, the anterior angles subtuberculate and 

 with a few long hairs. Median segment punctured, very short, 

 obliquely truncate posteriorly. Abdomen much broader than 

 thorax, sparsely punctured; first segment with a carina before 

 apex, a fringe of long hairs springing from below carina; second 

 segment with three transverse carinas and the apical margin 

 raised; the three following segments with a raised curved mark 

 on each side before the depressed apical margin. Pygidium 

 narrow, truncate posteriorly, with a longitudinal median carina 

 not reaching apex, lateral margins raised, a little expanded at 

 apex. Pale ferruginous; the front of head, third and fourth 

 abdominal segments at apex and posterior tibiae pale yellow; 

 median segment and base of third, fourth and fifth abdominal 

 segments black. Length 6-7 mm. 



Hab. — Cairns, Q. (Turner; $Q in cop.). 



The type has no definite locality attached, but probably is 

 from a more southern locality than the variety. The colour is 

 utterly unreliable in both sexes of the variety; I have taken a 

 male in which the vertex, mesonotum, third abdominal segment 

 and the base of the fourth alone are black. The clypeus in the 

 variety is a little more produced than in the type. 



A variety somewhat intermediate between this form and the 

 type has been named Thynnus praepes by Colonel Bingham (MS.)t 

 These forms may prove to be distinct species when the females 

 are discovered, but in the meantime it is better to treat them as 

 varieties. 



66. T. (Aeolothynnus) bipartitus, n.sp. 



(J. Clypeus short, truncate at apex and closely punctured; 

 interantennal prominence not much developed, connected with 

 base of clypeus by a narrow carina. Head, thorax, and median 

 segment finely and closely punctured; scutellum elevated and 



