130 REVISION OF THE THYNNIDiE OF AUSTRALIA, II., 



52. T. (Aeolothynnus) conjungens, n.sp. 



(J. Very near T. tasmaniensis Sauss., from which it differs in 

 having a delicate carina on the basal portion of the clypeus. 

 There is an interrupted yellow band on the fifth and sixth as 

 well as on the four basal abdominal segments; the nervures of the 

 wings are paler. It is also a smaller species. Length 9 mm. 



£. Head smooth and shining, much longer than broad, rounded 

 at posterior angles, sides nearly parallel, eyes rather prominent. 

 Thorax very narrow, almost smooth; pronotum about twice as 

 long as broad, sides nearly parallel, raised and subterculate in 

 middle near posterior margin, with a few setigerous punctures 

 on anterior margin. Median segment very short and narrow, 

 obliquely truncate posteriorly. The abdomen is damaged, but 

 the pygidium does not differ from that of T. tasmaniensis, nor 

 apparently does the rest of the abdomen. The colour is entirely 

 testaceous, but the specimen is probably immature. Length 

 4 mm. 



Hab. — Mackay, Q. (Turner; ^9 in cop.). 



I should have regarded the male merely as a local form of T. 

 tasmaniensis, but the shape of the head and thorax of the female 

 is very different. 



53. T. (Aeolothynnus) zelebori Sauss. 



Thynnus (Agriomyia) zelebori Sauss., Reise d. Nov. Zool. ii. 1, 

 Hym.p.ll7,n.2, 1867(<J). 



Saussure's description of the male is sufficient. 



£. Head smooth and shining, much longer than broad, the 

 sides strongly compressed and concave, antennae inserted close 

 together, eyes touching base of mandibles. Thorax and median 

 segment sparsely and finely punctured; pronotum rectangular, a 

 little longer than broad, with a longitudinal sulcus on each side, 

 leaving a raised area in centre, the lateral margins rather irregu- 

 larly raised. Median segment short, narrow at base, broadened 

 and obliquely truncate posteriorly. Abdomen rather broader 

 than thorax; first segment depressed on apical margin, leaving a 



