TACHINIDAE OF AUSTRALIA 97 



The key to Australian genera here given is, however, only a preliminary one. 

 The Australian fauna contains many undescribed forms that will have to be fitted 

 into the Eryciini when they are named. Eryciine forms are rather well developed 

 in Australia, and most of the genera are endemic; some essentially extra-limital 

 genera (such as Apiomya and Erythrocera) occur, and it is likely that other 

 Oriento-Papuan genera (such as Aneogmena) will eventually be found in Queensland. 

 Some of the Australian eryciines, like Austronilea, are extraordinarily similar to 

 Palaearctic counterparts, and the Tasmanian fauna includes several undescribed 

 forms that belong in the subgroup Baumhaueriina (a segregate occurring elsewhere 

 in the Palaearctic Region and southern Africa); the Tasmanian forms referred to 

 are recognized by the possession in the females of a pair of outwardly-directed 

 prevertical setae, and are the only Australian Goniinae known that possess 

 prevertical setae (except for the species of Spoggosia) . 



It may be useful to note that all the Australian eryciines so far known have the 

 lower surface of the second costal sector bare, and all have at least three setae on 

 the humeral callus, these standing more or less in a straight line (there are no 

 Australian eryciines, so far known at least, that have three humeral setae set in a 

 well defined triangle: three humerals in a triangle occur in Walker's type of 

 Tachina calliphon, which is an eryciine, but there is uncertainty as to whether 

 this specimen is genuinely Australian) . 



The genus Bactromyiella is very difficult to place satisfactorily but is here 

 retained in the Eryciini; the small pra seta suggests that it ought possibly to be 

 placed in the Blondeliini, and the general facies and haired barette suggest that it 

 would not be inappropriate to treat it as a winthemiine. 



The eryciine genera Aneogmena and Dolichocolon are included in the following 

 key as they occur in New Guinea, and may possibly occur in Australia. 



Key to Australian Genera of ERYCIINI 



Wing with cell R b closed well before the wing margin and long-petiolate. Last 

 section of vein Cu x conspicuously longer than cross-vein m-cu. Two presutural 

 dorsocentral (prst dc) setae (very weak third setula sometimes developed between 

 two main setae) . Apical scutellar setae directed almost straight upwards 



PHOROCEROSTOMA Malloch 



Wing with cell R & open at wing margin or just closed at the margin (not at all 

 petiolate). Last section of vein Cu x shorter than, or subequal in length to, 

 m-cu. Three presutural dorsocentral setae (except in Aneogmena and Erythrocera 

 in which normally two). Apical setae of scutellum horizontal or directed 

 obliquely upwards, sometimes absent ......... 2 



Mid tibia without a submedian v seta. Barette haired along its length (sparsely 

 in 9)- Sexes strongly dimorphic in colour and pattern: $ with thorax and first 

 abdominal segment black and remainder of abdomen bright golden orange or 

 orange-red; $ black with pleural regions, two fasciae on mesonotum, apex of 

 scutellum, and transverse band on each abdominal tergite 3-5, greyish yellow 

 to bright golden BACTROMYIELLA Mesnil 



Mid tibia with a submedian v seta. Barette bare or with only one or very few 

 hairs anteriorly (more extensively haired in Teretrophora). Sexes not strongly 

 dimorphic in colour or pattern, never as described above .... 3 



