270 MR. R. E. TURNER OX THE [Feb. 15, 



scutellum, then obliquely depressed and strongly concave on the 

 sides, broadened from the base, the depressed surface longer and 

 narrower than the pronotum. First abdominal segment rather 

 narrowly truncate anteriorly, shining, finely and sparsely punc- 

 tured, the dorsal surface nearly as long as the second segment, 

 the apical margin narrowly depressed ; second segment trans- 

 versely rugose between two transverse carina?, the apical margin 

 strongly raised ; segments 3-5 very delicately punctured-rugulose, 

 with a few large scattered punctures. Ventral segments coarsely 

 punctured-rugose. Pygidium not constricted at the base, ver- 

 tically truncate, the surface of the truncation ovate ; the dorsal 

 plate obliquely rugulose with a strong median longitudinal 

 carina, nearly as long as the ventral plate. Tarsal ungues 

 bidentate. 



Head, thorax, and legs ferruginous ; abdomen black ; the apex 

 of the pygidium fusco-ferruginous. 



Length 9 mm. 



Hub. Claremont, W. A. (H. M. Giles). December. $ $ in cop. 



" On Eucalyptus bloom." 



Glaphyrothynnus sitiens Turn. 



Thynnus {Glaphyroihynnus) sitiens Turn. Proc. Linn. Soc. 

 N.S.'W. xxxiii. p. 112 (1908), 6 . 



S . The spine on each side near the base of the hypopygium 

 mentioned in the original description is really only a protrusion 

 of the apex of the claspers in the type specimen. As in other 

 species of this difficult group, the extent of the yellow markings 

 is variable. 



$ . Head fully twice as broad anteriorly as long, strongly 

 rounded at the posterior angles, shining, with a few scattered 

 punctures, more closely punctured on the front than on the 

 vertex. Antennae inserted much farther from each other than 

 from the eyes ; the joints of the flagellum much broader than 

 long and produced at the apex beneath. Pronotum much 

 narrower than the head, nearly twice as broad on the anterior 

 margin as long, narrowed posteriorly, finely and sparsely punc- 

 tured, with a row of long white hairs on the anterior and lateral 

 margins. Scutellum transverse. Median segment short, scarcely 

 longer than the scutellum, very sparsely punctured, the punctures 

 pilif erous, steeply sloped posteriorly. Abdomen impunctate, except 

 at the apex of the raised portion of the first, fourth, and fifth 

 segments ; the first dorsal segment divided transversely into two 

 almost equal portions, the apical portion depressed and smooth, 

 the apical margin very feebly raised ; second segment with four 

 transverse carina? including the moderately raised apical margin, 

 the basal carina low and sometimes hidden by the first segment, 

 the third very high and separated from the apex by a broad 

 depressed space ; third segment depressed at the apex rather 

 narrowly, the raised portion before the apex strongly bilobed ; 

 fourth and fifth segments narrowly transversely depressed on the 



