hymenoptera. 25 



62. Thynnus (Agriomyia) pulchellus. B.M. 

 Thynnus pulchellus, Klug, Berl. Abhandl. (1842) 20. 13<?. 

 Hab. Australia. 



63. Thynnus (Agriomyia) senilis. B.M. 



Thynnus senilis, Erichs. IViegm. Archiv {\S42) 263. 236 3 • 

 IVestw. Arc. Ent. ii. 146. 



Hab. Tasmania. 



64. Thynnus (Agriomyia) jucundus. B.M. 

 Male. Length 5 lines.— Black : the mandibles, clypeus, orbits 



of the eyes interrupted at their summit, a narrow line on the 

 vertex, a' spot between the stemmata, and an angular shape above 

 the antennee, bright yellow ; the line on the inner orbits emargi- 

 nate. The margins of the prothorax, an elongate-quadrate-shaped 

 spot on the mesothorax having the anterior angles produced, the 

 tegulse and a line over them uniting with a spot behind, a spot 

 on the scutellum, the post-scutellum, an elongate angular shape 

 on the metathorax, its sides, and two spots beneath the wings, 

 yellow ; the legs red, and spotted with yellow ; the wings hyaline 

 and iridescent, with the nervures ferruginous. Abdomen : an 

 interrupted broad yellow fascia on each segment, which is slightly 

 notched anteriorly towards the lateral margins; beneath, the 

 segments with broad interrupted fascia;. 



Hab. Australia. 



65. Thynnus (Agriomyi.a.) rubellus. B.M. 



Male. Length 6f lines. — Black : the mandibles, anterior 

 margins of the face, the clypeus, and the lower portion of the 

 orbits of the eyes reddish-yellow. Thorax : a narrow line on 

 the anterior margin of the prothorax, the tegulae, and the post- 

 scutellum yellow ; the thorax beneath and the metathorax with 

 cinereous pubescence ; wings subhyaline, the nervures ferru- 

 ginous ; the legs ferruginous, with the coxae black. Abdomen : 

 the second, third, and fourth segments red, with a transverse 

 whitish fascia near their apical margins ; these fascise have a 

 central minute black dot, and on each side a short black line ; 

 the fifth segment has at its apical margin a curved pale line on 

 each side, terminating in a round dot within; beneath, the seg- 

 ments have a central and a lateral jiale spot; the basal segment 

 with a conical tubercle, which is pale at the tip. 



Hub. Australia. 



