266 REVISION OF THE THYNNID.E OF AUSTRALIA, I., 



base, smooth at the apex. Pygidium smooth and rounded. 

 Abdomen fusiform, short. Black; antennae fuscous, the scape 

 ferruginous; mandibles, the anterior portion of the clypeus, a 

 narrowly interrupted line on the anterior margin of the protliorax, 

 a curved line before the tegulae, the tegula3, a large spot on the 

 scutellum, a transverse line on the postscutellum and the legs 

 yellow. Wings hyaline, iridescent, nervures testaceous. Length 

 5-7 mm. 



9. Head much longer than wide, slightly narrowed to the 

 posterior margin, shining, very finely and sparsely punctured, 

 with a very delicate median frontal sulca. Prothorax narrowed 

 ^nd rounded anteriorly, about the same length as the median 

 segment, wdiich is modeiately broadened to the apex where it is 

 obliquely truncate. Thorax, median segment and abdomen 

 shining, with large, elongate, shallow punctures. Abdomen sub- 

 cylindrical, the first segment truncate at the base, the lateral 

 angles of the truncation produced into short spines, a minute 

 tubercle beneath near the base. Epipygium pointed. Entirely 

 castaneous. Length 3 mm. 



Hah. — Mackay, Q.((J9 in cop.). Cape York, Q. 



Cape York specimens have the whole pronotum yellow, and 

 the sculpture on the median seghient is coarser. 



E. LUCiDA Sm. 

 Thynnus {Agriomyia) lucidus Sm., Cat. Hym. B.M. vii. p.36, 

 n.95, 1859((J). 



The antennae are black, not yellow as in the following species; 

 it is also much less strongly punctured, especially on the abdomen. 

 The type is in the Oxford University Museum. 

 9. Unknown. 

 Hah. — Tasmania. 



E. LUCiDULA, n.sp. 



(J. Clypeus almost smooth, a very faint median carina from 

 the base to the centre, whence the clypeus is broadly triangularly 

 truncate to the apex. Head punctured, least strongly on the 

 xjcciput. Prothorax of moderate length, the anterior margin 



