16 HYMENOPTERA. 



spots between the antennae, yellow. Thorax : wings hyaline, 

 faintly yellow, with the nervures fusco -ferruginous ; the tegulae 

 pale testaceous yellow ; the anterior coxae yellow in front. Ab- 

 domen : each segment has a broad interrupted yellow fascia, 

 which is crossed longitudinally by a waved fuscous line at the 

 lateral margins; beneath, the second and three following seg- 

 ments with a large yellow spot on each side ; covered above and 

 beneath with fine shallow punctures. 

 Hob. Australia (Swan River). 



14. THYNNUS FLAVIVENTRIS. 



Thynnus flaviventris, Guer. Voy. Coq. Zool. ii. 229 $ ; Mag. Zool. 

 (1842) pi. 101.f.21<?. 



King, Berl. Abhandl. 19. 10. 

 Hob. Australia. 



15. THYNNUS EMARGINATUS. 



Thynnus emarginatus, Fabr. Syst. Ent. 360. 2 $ ; Ent. Syst. ii. 

 244. 2; Syst. Piez. 231. 2. 



Guer. Voy. Coq. Zool. ii. 229. 

 Hab. Australia. 



16. THYNNUS PEDESTRIS. 



Tiphia pedestris, Fabr. Syst. Ent. 354. 8 ? ; Ent. Syst. ii. 228. 



19; Syst. Piez. 235. 23. 

 Thynnus pedestris, Guer. Voy. Coq. Zool. ii. 16. 3. 



Klug, Berl. Abhandl. (1842) 16. 3. 



Mutilla Myrmecodes, Lamarck, Hist. Nat. 2nd ed. iv. 316. / 

 Hab. Australia. 



17. THYNNUS HYALINATUS. B.M. 



Thynnus hyalinatus, Westw. Arc. Ent. ii. 106. pi. 74. fig. 3 $ , 



fig. 4 ? . 

 Hab. Tasmania. 



18. THYNNUS MACULOSUS. B.M. 



Male. Length 1 1 lines. Black : the clypeus, the margins of 

 the face on each side, the lower part of the orbits of the eyes, and 

 two spots between the antennae, yellow ; an ovate black spot in 

 the middle of the clypeus ; the head and thorax above with pale 

 fulvous pubescence, on the sides and beneath it is cinereous. 

 The metathorax with a transverse yellow spot at its base ; the 

 wings fulvo-hyaline, the nervures dark ferruginous ; the legs 

 ferruginous, with the coxae black, the posterior pair with a 



