102 REVISION OF THE THYNNIDiE OF AUSTRALIA, II., 



slender, the fourth being much the longest. The first joint of 

 the labial palpi is nearly as long as the three apical joints com- 

 bined. The claspers are slender at the apex. 



11. T. (Zeleboria) cryptoides Sm. 



Thynnus (Agriomyia) cryptoides Sm., Cat. Hym. B.M. vii. p. 33, 

 n.84, 1859(<J). 



(J. Clypeus rather short, narrowly truncate at the apex; the 

 interantennal prominence bilobed. Head and thorax finely and 

 closely punctured; median segment slender, very finely trans- 

 versely striated and shining. Abdomen subpetiolate, elongate 

 fusiform, shining, with a few small scattered punctures. Hypo- 

 pygium subtruncate at the apex, slightly produced at the apical 

 angles with a central spine. 



Q. Head a little broader than long, slightly rounded at the 

 posterior angles, moderately convex, shining, very finely and 

 sparsely punctured. Thorax and median segment rather closely 

 punctured, pronotum rectangular, much broader than long, with 

 a longitudinal sulcus from the anterior margin reaching beyond 

 the middle; median segment obliquely truncate posteriorly. 

 Abdomen vertically truncate at the base, closely and shallowly 

 punctured; first segment with the apical margin slightly raised 

 and a transverse carina before it; second segment with four 

 transverse carina? including the raised apical margin. Pygidium 

 simple, with a low, longitudinal carina. Entirely light casta- 

 neous-brown. Length 6 mm. 



Hab. — River Plenty (Smith); Melbourne (Bakewell; (Jcj) in 

 cop.); Gosford, N. S.W. (Froggatt; <j£ in cop.). 



Type of 9 in Oxford University Museum. 



12. T. (Zeleboria) ada, n.sp. 



(J. Slender; clypeus rather short, broadly truncate anteriorly, 

 finely and closely punctured, pubescent. Head finely and closely 

 punctured, with a faint median impressed line from between the 

 antennae halfway to the anterior ocellus. Pronotum depressed, 

 the anterior margin raised; shining, with fine and very shallow 



