BY G. H HARDY. 77 



Pterodontia macquarti, Westwood, Trans. Ent. Soc. Lond., 



1848, p. 97. Id., Walker, List Dipt. B.M., vi., suppl. 



2, p. 348. Id., Westwood, Trans. Ent. Soc. Lond., 



1876, p. 513. 



Synonymy. — It seems certain that only one species of 



this genus has been described from Australia, and probably 



the species described by White as P. variegata is identical, 



but as specimens are not available for comparison the Tas- 



manian species is retained as distinct. 



The name P. macquarti, Westwood, was created to take 



the place of the preoccupied P. flavipes, Macquart, but P. 



mellii, Erichson, takes priority, 



Pterodontia variegata, Walker. 

 Pterodojitia variegata, White, Proc. Roy. Soc. Tasm., 1914, 

 p. 68, text fig. 10. 

 Status. — The holotype of this species is unique, and is 

 in the collection of Mr. F. M. Littler. When a series of 

 specimens is available for comparison this species will un- 

 doubtedly be found to be identical with P. mellii, Erichson. 



Genus Nothra, Westwood. 

 Nothra, Westwood, Trans. Ent. Soc. Lond., 1876, p. 514. 



Characters. — The eyes contain long conspicuous pubes- 

 cence; the antennae are situated near the mouth, are very 

 small, and have a terminal style; the abdomen is bladder- 

 form. The wings are normal in shape, and the veins are 

 comparatively few in number and complete; the venation is 

 similar to that of the genus Pterodontia. 



Type. — N. bicolor, Westwood Australia. 



Nothra bicolor, Westwood. 

 Nothra bicolor, Westwood, Trans. Ent. Soc. Lond., 1876, 

 p. 515, PL vi., fig. 4. 

 Hab. — There are two specimens from South Australia 

 in the Australian Museum. 



Genus Oncodes, Latrielle. 

 Ogcodes, Latrielle, Precis caract. gen. d'Ins., 1796, p. 154. 

 Henops, Meigen, 111. Mag. f. Ins., ii., 1803, p. 266. 

 Acrodes, Froggatt, Austr. Ins., 1897, p. 298. 

 Oncodes, White, Proc. Roy. Soc. Tasm., 1914, p. 69. 



Characters. — The eyes are bare; the antennae are situat- 

 ed near the mouth, which is vestigial, and are very small, 



