TACHINIDAE OF ORIENTAL REGION I3 



- Wing not so, or if with slightly similar conformation then other characters not 

 fitting. Frons nearly always narrower in 6* than ? and with only two proclinate 

 orbital setae (these usually in 9 only). Disc of scutellum almost always without 

 median erect setae. Pteropleural seta clearly differentiated 



rT . • • GONIINAE (large part) (p. 106) 



[This is a very important point of the key as at this exit runs out almost all 

 of the vast complex of forms that have both hairy eyes and vestiture on the 

 presternum, Very nearly all such forms belong in the subfamily Goniinae 

 the only known Oriental Region exceptions being Hyleorus and Chrysosomopsi's 

 in the fachininae] 



Second 5a seta and pra seta both absent (supra-alar region of the scutum therefore 

 with a single isolated median seta, the first sa). Two strong post ia setae the 

 anterior one standing at least as close to the transverse suture as to the posterior 

 one. Sternites partially exposed (visible between the separated ventral ends of the 

 tergites) Scutellum with two pairs of marginal setae (basals and strong crossed 

 apicals, Text-fig. 82). Presternum with one very long seta on each side directed 

 straight downwards. Pallid luteous or reddish yellow form. [Parasite of adult 

 Scarabaeoidea (Coleoptera)} . . Palpostomatini (part) (Tachin.nae, part) (p 57) 



[At this exit runs out the genus Palpostoma (syn. Hamaxia) which differs from 

 other Palpostomatini in having the prosternal setae] 

 Second sa seta and p ra seta nearly always present simultaneously, the pra seta 

 sometimes undifferentiated (both setae sometimes small). Three post ia setae 

 or if only two clearly differentiated (occasional specimen) then the anterior one 

 closer to the posterior one than to the transverse suture. Sternites completely 

 concealed or nearly so by meeting or overlapping ventral ends of the tergites 

 Scutellum with varied arrangements of marginal setae but not exactly as Text-fig 

 82 Prosternal hairs or setulae sometimes directed straight downwards but usually 

 outwards or obliquely downwards. Forms otherwise coloured. [Parasites of 

 Lepidoptera, Hymenoptera, Orthoptera or Coleoptera, but not of adult Scarabaeoidea] 



GONIINAE (large part) (p. 106) 

 [This is a very important point of the key as at this ex.t run out almost all 

 of the many Oriental forms that have both bare eyes and vestiture on the 

 presternum. Very nearly all such forms belong in the subfamily Goniinae 

 the only known Oriental Region exceptions being subgenus Chrysorutilia of 

 genus Ruhha in the Proseninae, Palpostoma in the Tachininae (run out at 

 nP n °l th ' S cou P Iet )' and the type-specimen of Melanasomyia aberrans 

 (Mesnil). The first of these exceptions will run out at couplet 5 because it 

 possesses a heavy facial carina, and the last is not placed in the key because 

 it may be an atypical specimen. The type of M. aberrans is the only known 

 specimen and differs from Goniinae (? only, as member of Minthoini) by 

 having greatly enlarged fore tarsi in which the claws are very reduced and the 

 last segment as long as the three preceding segments together (Text-fig. 146).] 

 Eyes hairy (the hairing long and easily visible in silhouette at low magnifications) 1 2 



Eyes bare or nearly so (hairing if present very short and sparse and only visible at 

 high magnifications) .... 



Forms with the following characters present simultaneously: two post ia setae' 



scutellum with two pairs of marginal setae (basals and strong crossed apicals' 



as in Palpostoma, Text-fig. 82); <j head holoptic; lower calypter small, rounded' 



widely diverging from the scutellum; parafacials bare ; abdominal Ti + 2 excavate 



to its hind margin. [Hosts unknown] Dufouriini (part) (Dufouninae, part) (p ,8) 



[At this exit runs out the genus Kambaitimyia that Mesnil described in 



Dufourunae and which is the only Oriental member of the subfamily known 



with hairy eyes. Only the original material from Burma is known The 



