5 o R. W. CROSSKEY 



from bend to margin much greater than the length of r-m). Blackish forms with 

 unicolorous black legs. [Himalayan parts of Oriental Region, also Palaearctic] 



DINERA Robineau-Desvoidy 

 10 Abdominal T5 of o* produced to a rather sharp posterodorsal point and bearing some 



stubby spiniform setae in front of the marginal setae URODEXIOMIMA Townsend 

 [This genus is known only from the 5* holotype of the type-species, which has 

 not been available for study during the preparation of this key. The validity 

 of the genus is questionable.] 

 — Abdominal T5 of 3" not forming an unusually sharp point to the abdomen and 

 bearing very short and rather fine setulae in front of the marginal setae 



PHILIPPODEXIA Townsend 



Tribe RUTILIINI 



A reclassification of this tribe, together with keys to the species, has recently 

 been published (Crosskey, 1973a). The rutiliines are somewhat disjunct in the 

 Oriental Region from the other Proseninae (Dexiinae) and it appears likely that 

 their occurrence in the area is attributable to relatively recent immigration from 

 the main centre of tribal evolution in New Guinea and Australia. Only two of 

 the eight currently recognized genera are found in the region, each being represented 

 there by only one of its constituent subgenera, viz. Formosia s.str. and Rutilia 

 (Chrysorutilia). Nothing is known of the hosts in the Oriental Region, but else- 

 where they include the large wood-inhabiting larvae of Lucanidae and soil-inhabiting 

 larvae of Scarabaeidae (Coleoptera) . 



Key to Oriental Genera of RUTILIINI 



[Note. The key characters serve only to distinguish Oriental specimens of Formosia and 

 Rutilia ; they do not hold true for all specimens of these genera elsewhere.] 



1 Parafacials bare. Suprasquamal ridge bare. Postalar wall with a dense hair-tuft. 

 Abdominal T3 with a transverse row of spiniform marginal setae. Scutellum with 

 apical pair of setae inserted about on a level with the other scutellars marginals. 

 Fore coxa uniformly haired on its inner anterior surface (Text-fig. 140) 



FORMOSIA Guerin-Meneville 



- Parafacials haired. Suprasquamal ridge densely haired (Text-fig. 145). Postalar 

 wall bare. Abdominal T3 without such marginals, at most with one pair. Scutellum 

 with apical pair of setae inserted at a lower level than the other scutellar marginals. 

 Fore coxa bare on its inner anterior surface (Text-fig. 141) 



RUTILIA Robineau-Desvoidy 



Tribe DOLESCHALLINI 



This tribe includes the most slender-bodied and elongate-legged Tachinidae in 

 the Old World, and is found in southern India and Ceylon, and from Borneo and 

 the Philippines eastwards to the Solomon Islands; on the evidence so far available 

 the Doleschallini are unrepresented in the Malay peninsula, western Indonesia 

 and Queensland, but the apparent absence of the tribe from these areas may be 

 due simply to lack of collecting of this rare group. The adult flies are rarely 



