418 Miss G. Ric.iido — A Bevision of 



The type of Troctacanthus posticus, Walker, is a Bathij- 

 poyon sp. (see 'Annals/ ser. 8, vol. x. 1912, p. 15.2). 



Proctacanthus dnrvillei, Macquart. 



Seen in Paris, 12. 4. 11. 



Type a female from Tasmania in bad preservation. 



Blackish. Face very narrow above, below wider and 

 wholly taken up by a tubercle, covered with yellowisli 

 tomentum and very short pubescence. Moustache seems 

 destroyed. Palpi Avith black bristly hairs. Antennce de- 

 stroyed. Head excised behind. Beard yellow. Scutellum 

 with remains of golden tomentum. Abdomen apparently 

 blue-black, shining. Legs fairly stout, black ; femora with 

 white hairs below ; tibiae and tarsi with many reddish bristles j 

 tibiae reddish, 



Macquart described it thus, and states it came from Bay 

 of Jervis, New South Wales (New Holland) : — 



Black. Thorax with yellow pubescence and three black 

 stripes. Tibiae testaceous. 



Length 9 lines. ? . 



Face, moustache, and beard yellow. Forehead black, with 

 slight grey tomentum and black hairs. Abdomen shining 

 black with blue reflections. Coxae and femora with whitisli 

 hairs ; tibiae and tarsi with vellow bristles. {Wings muti- 

 lated.) 



Proctacanthus spilogaster, Thomson. 



From Sydney. 



Described as allied to P. dwvillei, Macq. 



Black, the face, spots on tJiorax and sides of abdomen 

 yellow-haired ; femora brown ; tibiae pale yellow, their base 

 and apex and the tarsi black, these latter with the meta- 

 tarsus yellow at base. Wings hyaline ; veins brown, the 

 transverse vein below the middle of discal cell. 



Length, $ , 17 mm. 



Erax, Scop. 



Eutomol. Carniol. p. 359 (1763). 



Fffei'ia, Coquill. Canada Ent. xxv, p. 175 (1893). 



The following species are recorded from the Australasian 

 Region, most of them from Australia : — 



Erax albiventvis, Macq., Dipt. Exot. Suppl. iv. p. 386 (1849). 

 I'-rax asiloides, Macq., /. c. p. 386, pi. viii. tig, 8. 



I 



