TACHINIDAE OF ORIENTAL REGION 69 



(Fabricius); but the possible synonymy has not been investigated further whilst 

 preparing this paper because of lack of adequate material. 



The wagneriines in the Oriental area are shining black forms with rather fusiform 

 abdomen, and are particularly distinctive because of the presence on each parafacial 

 of a row of very strong downcurved setae. 



The following list shows the main characteristics that are shared by the Wagneriini so far 

 known from the Oriental area (note that the features mentioned do not necessarily hold true 

 for members of the tribe found in other regions). Head with broad frons in both sexes. Eyes 

 bare or virtually so. Ocellar setae present, proclinate. Both sexes with orbital setae, these 

 either proclinate or divaricate (directed outwards over the inner eye margins). Facial ridges 

 bare and the parafacials armed with a row of very strong downwardly directed bristles. Face 

 nearly flat or weakly warped forwards to the epistome. Vibrissae strong, about level with 

 epistomal margin. Upper occiput with black setulae behind the postocular row. Arista 

 thickened on basal half or more, second segment sometimes slightly elongate, bare. Presternum 

 bare. Propleuron bare (except in Periscepsia philippina) . Humeral callus with three strong 

 setae in a triangle. Presutural ia seta absent [cf. Voriini]. 2 or 3 + 3 dc setae, pra seta 

 absent or minute. 2 sa setae. 2-3 stpl setae. Pteropleural seta absent. Scutellum either 

 with three pairs of marginal setae (basals, very strong laterals and strong crossed apicals) 

 or with two pairs (the basals undifferentiated). Fore coxa bare on inner half of anterior surface. 

 Fore tibia with a row of ad setae or setulae. Mid tibia with a submedian v seta and with several 

 ad setae. Hind coxa bare posterodorsally. Hind tibia without or with very weak pv apical 

 seta, with three dorsal preapical setae. Wing with vein /?, bare; R iJ[h setulose at least three- 

 quarters of the way to r—m, usually to well beyond r— m; bend of vein M sharply angulate, 

 usually with trace of appendix; second costal sector very short, haired ventrally; costal spine 

 long. Abdomen subfusiform ; sternites concealed. [Mainly shining black forms with very 

 strong chaetotaxy.] 



Key to Oriental Genera of WAGNERIINI 



1 Wing with cell i? 5 closed and petiolate, the petiole at least as long as v-m and usually 

 much longer. Three post ia setae. Abdominal Ti -f 2 excavate to its hind 

 margin or nearly so. Acrostichal setae present (at least one pair of prsl acr and 

 more than one pair of post acr). pra seta absent. Lower occipital and postbuccal 

 regions with pale (white or yellowish white) hair. . . PERISCEPSIA Gistl 



- Wing with cell /? 5 open to the wing margin. Two post ia setae (both very strong). 

 Abdominal Ti + 2 not excavate. Acrostichal setae absent (at most an adventi- 

 tious prescutellar pair weakly differentiated). Small pra seta present. Posterior 

 surface of the head entirely black-haired ..... PETEINA Meigen 



Tribe PHYLLOMYINI 



This is a mainly Holarctic group and only finds a place in the Oriental coverage 

 of the present work because a few species occur in the northern border regions of 

 the Oriental Region abutting the Palaearctic Region (northern Burma, Himalayan 

 India, Szechwan) and in Formosa. Mesnil (1939a) appears to have been the first 

 worker to define a suprageneric taxon for Phyllomya Robineau-Desvoidy and its 

 allies, but it is possible that an earlier use of a family-group name based on Phyllomya 

 exists in the literature that I have overlooked. More recently, Mesnil (1975a : 1349) 

 has defined the group under the subtribal name Phyllomyina. 



