BY ROWLAND E. TURNER. 165 



depressed shining line to centre. Head very closely punctured, 

 a faint longitudinal carina on front between antennae. Pronotum 

 rugulose, anterior margin raised ; mesonotum and scutellum 

 rugose, scutellum with a low carina from base to apex. Median 

 segment rounded, delicately transversely rugulose. Abdomen 

 fusiform, shallowly punctured; apical margin of the segments 

 depressed and smooth; second segment strongly depressed at 

 base; segments 3-5 with an impressed transverse line near base. 

 First ventral segment with an acute tubercle at apex. Hypo- 

 pygium rounded, with a short apical spine. Black; legs fuscous; 

 anterior margins of face narrowly white. Wings hyaline, tinged 

 with fuscous, nervures fuscous. Length 12 mm. 



Q. Head shining, with a few scattered punctures, subquadrate, 

 the sides behind eyes compressed and slightly narrowed, with a 

 concave depression, another depression on front between eye and 

 base of antenna, leaving the eye on a narrow ridge. Pronotum 

 nearly twice as broad anteriorly as long and broadly emarginate, 

 narrowed posteriorly. Abdominal segments delicately striated 

 at base, very sparsely punctured at apex; second segment with 

 four transverse carina?, including the raised apical margin. 

 Pygidium ovate-lanceolate, with a low longitudinal carina. Light 

 ferruginous; the abdomen ferruginous-brown. Length 7 mm. 



Hah. — S. Australia. Type in Brit. Mus. 



99. T. (Agriomyia) trochanterinus Westw. 



Thynnus trochanterinus Westw., Arc. Ent. ii 2, p. 116, P.77, 

 fig.3, 1844(<J). 



Thynnus trochanter icus D.T., Cat. Hym. viii. 116, 1897((J). 



<J. Clypeus narrowly produced and truncate at apex, hypo- 

 pygium rounded with a short apical spine as in typical Agriomyia. 

 First ventral abdominal segment vertically truncate at apex and 

 produced into a short blunt tubercle. 



Hob. — Albany, W. A.; Victoria; NewSouth Wales; Duaringa,Q. 



The female of this common species is still unknown. 



