168 Mr. R. E. Turner on the 



43-articulatis, articulis 15-25 albido-flavis ; terebrse valvulis 

 nigris ; alis hyalinis, venis fuscis, tegulia testaceis. 

 Long. 9 mm. ; terebrae long. 10 mm. 



? . Differs from A. meridlonalis in having the face very 

 finely punctured, without a carina ; the median lobe of the 

 mesonotum finely punctured, not reticulate posteriorly ; the 

 first tergite transversely ru^ulose, the two longitudinal carinse 

 stronger than in meridionalis and reaching almost to the apex, 

 and the second cubital cell longer, somewhat narrowed to the 

 apex, the second abscissa of the radius nearly twice as long 

 as the second transverse cubital nervure, and about two- 

 thirds of the length of the cubital margin of the cell. 



Hab. Victoria (C. French). 



A specimen from Franklin, Tasmania, has the hind tarsi 

 whitish yellow except at the base and apex, but in the type 

 also they are much paler than the other tarsi, and would 

 probably be whitish yellow in life. 



I have not seen either A. indultor, Erichs., or A. australi- 

 anus, Kokuj. A specimen of A. inornatus, Kokuj., differs 

 from the type in having joints 15—21 of the antennas whitish 

 instead of 15-24 as in the type, and the antennas only 39- 

 jointed instead of 45 ; but another specimen has 41 joints 

 with joints 15-22 whitish. The female of inornatus has the 

 terebra equal in length to the whole insect. Probably, as 

 Kokouyew suggests, inornatus will prove to be a variety of 

 indultor. The three species of Austrohelcon known to me all 

 have the clypeus short and the labrum exposed. 



Teichiohelcon, gen. nov. 



? . Closely allied to Austrohelcon, differing in the deeper 

 frontal excavation, in the strong longitudinal median carina 

 of the second tergite, and in the dense hairy covering of the 

 median segment and of the first and second tergites. 

 Type of the genus, Iphiaulax phoracanthce, Frogg. 



Trichiohelcon phoracanthce, Frogg. 



Iphiaulax 'phoracanthce, Frogg. Agricult. Gazette of New South Wales, 

 xxvii. p. 565 (1916). $. 



2 . Nigra ; capite rufo ; segmento mediano, tergitisque primo 

 eecundoque albo-cinereo-hirsutis ; alis fusco-hyalinis, venis nigris. 

 Long. 11 mm. ; terebrae long. 11 mm. 



? . Antennae 48-jointed ; head shining, the face finely 



