1-2 AUSTRALIAN EOMBYLIID.E AND CYIITID.E (DIPTERA), 



Sisyroniyia pinguis, Walker. 



Bomhylius pinguis, Walker, List Dipt. B.M., ii., 1849, p. 290. 



Hah. — Western Australia; King George's Sound; one 

 female in the Macleay Museum conforms to the description. 



Sisyromyia alius, Walker. 

 Bomhyliiis alius, Walker, List Dipt. B.M., ii., 1849, p. 288. 



Sisyromyia aniecedeus, Walker. 

 Bornhylius aviecedens. Walker, ibidem, p. 293. 



Sisyromyia immuiaius, Walker. 

 Bomhylius immuiaius. Walker, ibidem, p. 292. 



Sisyro7}iyia primogeyiiius, Walker. 

 Bomhylius primogemius, Walker, ibidem, p. 292. 



Sisyromyia ruiilus. Walker. 

 Bomhylius ruiilus. Walker, ibidem, p. 289. 



Sisyromyia ieirairichus. Walker. 

 Bomhylius ieirairichus, Walker, ibidem, p. 291. 



Genus Bomhylius, Linnseus. 

 Bomhylius, Linnseus, Syst. Nat. Edit., x., 1758, p. 606. Id., 

 White, Proc. Roy. Soc. Tasm., 1916, p. 192. 



Noie. — There are fourteen descriptions that apparently 

 belong to the genus Bomhylius in its restricted sense; of 

 these seven are recognisable in the collections under ' revi- 

 sion, three probably belong to synonyms, and five have not 

 been recognised. 



Bomhylius fuscanus, Macquart. 



Bomhylius fuscanus, Macquart, Dipt. Exot., suppl. 4, 1850, 



p. 119. Id., White, Proc. Roy. Soc. Tasm., 1916, 



p. 193. 



Noie. — Under this species White suggests that Walker's 



B. ynatuiinus is a synonym, but no species of the genus 



Bomhylius is definitely known to occur both in Australia and 



Tasmania, although some species from these localities are 



very closely allied, and therefore the suggested synonymy is 



not accepted here. B. fuscanus is a dull uniformly coloured 



species. 



