TACHINIDAE OF ORIENTAL REGION n 



to transverse suture. Prosternal hairs or setulae usually directed outwards or 



obliquely (rarely straight) downwards. Sternites concealed or virtually so. 



Scutellar chaetotaxy almost always otherwise arranged. Colour varied, rarely 



entirely luteous. [Not parasites of adult Scarabaeoidea] . GONIINAE (part) (p. 106) 



Forms with the following characters present simultaneously: arista bare (at ordinary 



low magnification) ; facial ridges and parafacials bare or virtually so (at most 



with some minute and inconspicuous hairs) ; reclinate orbital setae absent or not 



clearly differentiated from frontal setae or hairs; 0-2 post ia setae; prst ia seta 



absent; pteropleural seta absent or weak; wing veins bare (except basal node of 



•^4 + 5); fore coxa bare on inner anterior surface; abdominal Ti + 2 not excavate 



to its hind margin. [Parasites of Hemiptera] PHASIINAE (Eutherini excluded) (p. 16) 



[Some members of the Tachininae, not parasites of bugs, and members of the 



Dufouriinae parasitic on Coleoptera, will run out at this point but are unlikely 



to be involved in regular identification] 



Forms without such combination of characters present simultaneously, failing on 



one or more of the characters cited. [Not parasites of Hemiptera] ... 8 



Forms with the following characters present simultaneously: gena very large in 

 relation to the eye, its depth almost as great as the length of the third antennal 

 segment or of the whole antenna (Text-figs 28-30) ; arista long-plumose (Text-figs 

 28-30) ; reclinate orbital setae undifferentiated ; rows of frontal setae reaching 

 only as far as lunula; antennal axis at or below level of eye-middle (Text-figs 28-30) ; 

 parafacials bare; pteropleural seta present; scutellum with three pairs of strong 

 marginal setae, basals, subapicals and crossed apicals (Text-fig. 75), except in 

 Doleschalla with apicals very weak or absent; wing veins bare (except for basal 

 node of R i + b ) ; fore coxa bare on inner anterior surface. [Parasites of Coleoptera, a 

 species of Doleschalla also on Hepialidae (Lepidoptera)] 



PROSENINAE (DEXIINAE) (part) (p. 43) 

 Forms without such combination of characters present simultaneously, failing on at 

 least one and usually more than one of the characters cited. [Parasites mainly 

 of Lepidoptera, occasionally Coleoptera] . . . TACHININAE (part) (p. 53) 



[Also running out at this point are the few members of the Goniinae that have 

 both the eyes and the presternum bare. These include mainly a few genera 

 of Blondeliini parasitizing Coleoptera that cannot reliably be separated from 

 Tachininae by straightforward characters, and the genus Blepharella (Sturmiini) 

 with lepidopterous hosts: the latter differs from all Oriental Tachininae by 

 simultaneously having bare eyes, facial ridges setose on their whole height, 

 ocellar setae proclinate (very weak), and propleuron bare (cf. Campylochetini)] 



ALTERNATIVE KEY TO SUBFAMILIES OF ORIENTAL TACHINIDAE 



[Note. This key is intended more for the museum dipterist than is the key given above. 

 Its coverage is much more complete for the whole Oriental fauna, but it nevertheless excludes 

 a few aberrant genera that cannot confidently be assigned to a tribe or subfamily (e.g. Austro- 

 phasiopsis, Cylindromyiella, Trischidocera, Zamimus). All subfamilies have had to be run 

 out in parts in order to deal with the problems created by aberrant tribes or atypical genera.] 



1 Lower calypter much larger than the upper calypter and extending well beyond it . 2 



- Lower calypter extremely reduced, in the form of a narrow crescentic flap of similar 



shape and size to the upper calypter (the calyptrae and rest of body facies 

 resembling Scathophagidae). [Hosts unknown] 



Oxyphyllomyiini (Tachininae, part) (p. 94) 



2 Prosternal region of the thorax normal, not inflated, invisible when fly seen in 



profile ............. 3 



- Prosternal region of the thorax strongly inflated, ballooning out so far as to be 



