616 NEW FOSSORIAL HYMENOPTERA, 



the middle spine the longest, the sides parallel. Seventh dorsal 

 segment broadly truncate at the apex. Second abscissa of the 

 radius longer than the third; second recurrent nervure received 

 at about one-eighth from the base of the third cubital cell. 



Hab. —South Australia, 24 miles west of Kychering Soak, on 

 the railway from Port Augusta to Coolgardie; 2 males. 



Type in the Victorian National Museum. 



Allied to D. orientalis Turn., but has the clypeus much longer, 

 and the hypopygium much broader with the spines more strongly 

 developed, the pronotum is longer, and the yellow colouring much 

 more extensive. The lengthening of the clypeus seems to be 

 characteristic of many of the desert Thynnidce, and is associated 

 with a longer and more or less exposed labrum. 



Guerinius confusus Sm. 



Thynnus confusus Sm., Cat. Hym. B.M. vii. p. 13, 1859 5( J. 



Thynnus sulcifrons Sm., Cat. Hym. B.M. vii. p.43, 1859, 9. 



Tachynothynnus confusus Turn., Wystman, Gen. Insect., cv. 

 p.50, 1910 )( J. 



Tachynothynnus sulcifrons Turn., Wystman, Gen. Insect., cv. 

 p.50, 1910,9. 



A pair in the Australian Museum, taken in copula, by Mr. 

 Masters, at Albany. 



The name Guerinius Ashm., must stand for this genus, as 

 pointed out by Rohwer. 



Zaspilothynnus campanularis Sm. 



Thynnus campanularis Sm., Trans. Ent. Soc. London, 1868, 

 p.232,<J. 



Thynnus leachiellus Olliff, Mem. Austral. Mus. ii. p. 98, 1889 

 (nee Westwood). 



Olliff identified this wrongly; the species taken on Lord Howe 

 Island being T. campanularis Sm. 



Zaspilothynnus rhynchioides, sp.n. 



£. Niger; capite, fascia transversa inter oculos excepta, pro- 

 noto, mesopleuris antice, pedibus anticis, segmentisque abdomin- 

 alibus tribus apical ibus aurantiacis; alis Ha vis basi et apice in- 



