TACHINIDAE OF AUSTRALIA 29 



also); abdominal Ti + 2 excavate to its hind margin; infrasquamal hairs absent; 

 $ with long slender L-shaped aedeagus (Text-fig. 22). [Parasites of Coleoptera] 



PROSENINAE (part) (p. 41) 

 [Note: A few non-prosenine forms conform very closely with the characters cited. 

 If specimens conform but from experience do not appear to have a prosenine 

 facies they should be tested next in the tribal keys for Tachininae or Goniinae. 

 If characters appear to conform but the known host is not a beetle then pass to 

 couplet 8]. 

 Forms without such combination of characters present simultaneously, normally 

 failing on at least one and usually more than one of the characters cited. [Para- 

 sites mainly of Lepidoptera, occasionally Hymenoptera, Coleoptera, Orlhoptera, 

 Phasmatodea, Mantoded] ........... 8 



[Note: If the eyes are densely haired, or the presternum is not bare, or the pra 

 seta is very long and strong, then pass immediately to couplet 8 without further 

 consideration: if the eyes are bare, the prosternum bare and the pra seta weak 

 then a critical consideration of the other characters cited in the first half of 

 couplet 7 must be made at this point.] 

 Pre-alar seta [pra) very strong (longer and stronger than first post ia seta or the 

 first post dc seta) and the prosternum setulose. Propleuron bare. Second costal 

 sector bare ventrally. Infrasquamal hairs absent. [Parasites of Lepidoptera or 

 Hymenoptera Vespoidea, one genus (Pseudalsomyia) on Cerambycidae] 



GONIINAE (part) (p. 74) 

 Pre-alar seta (pra) small or absent (usually not larger than first post ia seta, if larger 

 as in some Tachinini then prosternum bare). Prosternum bare or setulose. 

 Propleuron bare or haired. Second costal sector bare or haired ventrally. 

 Infrasquamal hairs sometimes present. [Parasites of Lepidoptera, Coleoptera, 

 Hymenoptera Symphyta, Orthoptera, Phasmatodea, Mantodea] .... 9 



Prosternum bare (haired in a few exceptions but then either hairing on anterior edge 

 of prosternum and on prosternal membrane, or arista plumose, or two strong 

 widely separated post ia setae and fore tarsi flattened, or epistomal margin strongly 

 projecting and vibrissae inserted high above level of epistomal margin, or ptero- 

 pleural seta absent and vein P i + i setulose on most of its length). Pteropleural 

 seta present or absent. Epistome often strongly projecting and easily visible in 

 profile, the vibrissae then often high above level of epistomal margin (as in 

 Text-figs 41-46). [Parasites of Lepidoptera (except Apatemyia on Coleoptera)] 



TACHININAE (p. 50) 

 Prosternum haired or setulose but sometimes only a single hair on each side 

 (Text-fig. 9) (bare in a very few exceptions but then subapical scutellar setae very 

 strongly diverging and either apical scutellar setae absent or male with dense 

 hair fascicles on T5). Pteropleural seta present. Epistome not projecting and 

 invisible in profile or at most only rather weakly projecting, vibrissae usually 

 not much above level of epistomal margin (e.g. Text-fig. 49). [Parasites of 

 Lepidoptera, Coleoptera, Hymenoptera Symphyta, Phasmatodea, Mantodea] 



GONIINAE (part) (p. 74) 

 [Note: It is almost impossible to separate the Tachininae from the Goniinae with 

 small pre-alar seta in a satisfactory way. The distinctions given in couplet 9 

 should help to separate specimens of the two subfamilies, but in cases of doubt 

 specimens should be run in the tachinine and goniine tribal keys.] 



SUBFAMILY PHASIINAE WITH KEYS TO THE TRIBES AND GENERA 



This subfamily is morphologically very diversified but biologically very discrete, 

 for the hosts of the true phasiines are all in the Hemiptera-Heteroptera and all 



