BY ROWLAND E. TURNER. 97 



5. T. (PSAMMOTHYNNUS) DEPRESSUS Westw. 



Thynnus (Agriomyia) depressus Westw., Arc. Ent. ii. 2, p. 107, 

 P.74, figs.5-6, 1844(^9). 



Zeleboria depressa Sauss., Reise d. Nov. ii. 1, Hym. p. 131, 1867. 



Psammothynnus depressus Ashm., Canad.Ent.xxxv. 1903(^9). 



WViynnus trisiilcatusSm., C&tttym.BM.vii.pA5,n.\'29,l8D9(Q). 



Hob. — S.W. Australia. 



I think I am correct in sinking the name trisulcatus, but have 

 not had any opportunity of comparing a series of specimens. 

 There is no carina on the pronotum of the female of this species 

 as in T. fulvopilosus. 



6. T. (Psammothynnus) fulvopilosus Sm. 



Thynnus fidvopilosus Sm., Descr. n.sp. Hym. p. 160, 1879(^9). 

 Rhagigaster rugosusSm., Descr.n.sp. Hym. p.176, 1879(9; nee (J). 



£. This is very near T. depressus Westw. The pronotum is 

 covered with long fulvous hairs, but I can see no other appreci- 

 able difference. 



9- Head subquadrate, broader than long, slightly convex, 

 finely reticulate with sparse and large punctures. Thorax and 

 median segment coarsely punctured; the pronotum rectangular, 

 broader than long, narrower than the head, the anterior margin 

 straight and very slightly produced at the angles, a short, delicate 

 longitudinal carina on the middle of the segment. Median 

 segment nearly as long as the pronotum, obliquely truncate 

 posteriorly. Abdomen opaque, with a few scattered and shallow 

 punctures; basal segment vertically truncate anteriorly, with a 

 deep transverse groove before the apical margin; second segment 

 with three strong transverse carinas, the apical margin also 

 slightly raised. Pygidium rather narrow, gradually broadened 

 from base to apex, with a median longitudinal carina and the 

 margins a little elevated. Length 6 mm. 



Hab.— Adelaide, S.A. (Smith). 



The female is very similar to that of T. depressus, but differs in 

 the sculpture of the abdomen, especially of the second segment. 

 It will probably prove to be a geographical variety of that species. 

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