i 3 2 R. W. CROSSKEY 



- Facial ridges bare except for the usual few setulae immediately above the vibrissae 



(fine setulae on lowermost two-fifths in one undescribed species). Humeral callus 

 with four setae (aberrantly only three) of which the three main setae stand 

 almost exactly in line. Usually three or four stpl setae (two in some Blepharipa 

 specimens). Mid tibia with one or more ad setae. Ocellar setae present or 

 absent. £ abdominal T4 with or without dense lateral hair-fascicles but not 

 with short fine close hairing of a sexually modified nature ..... 25 



25 Sides of abdominal T4 of o* with long dense hair-fascicles which extend on to the 

 venter. Two or three stpl setae, occasionally four in $. Parafacial usually 

 with some fine hairing on at least the extreme upper end adjacent to the 

 lowest frontal setae. Large forms, length 10-20 mm . BLEPHARIPA Rondani 



- Sides of abdominal T4 of <$ without hair-fascicles, the tergite either with unmodified 



hairing or the venter (also venter of T3) covered with very short fine hair that 

 forms an even nap. Four stpl setae. Parafacials totally bare. Smaller forms, 

 length 5-10 mm ..... SISYROPA Brauer & Bergenstamm (part) 



Tribe GONIINI 



As here recognized this tribe corresponds to the Goniini in van Emden's (1954) 

 sense and to Mesnil's (1956) group Salmaciina, and includes the members of the 

 subfamily Goniinae in which the ocellar setae are directed backwards, the eyes 

 are very wide apart and both sexes have strong outer vertical setae. Members 

 of the group have an unmistakable facies because of the exceptional widening of 

 the frontal and facial regions of the head, and are the only higher Tachinidae (Gonii- 

 nae) in which the ocellar setae are truly reclinate. Superficially similar forms 

 with somewhat widened heads occur in the Sturmiini, but these either lack ocellar 

 setae altogether or have them weakly developed and directed forwards or outwards. 

 The Goniini as here accepted will probably prove to be too restricted a tribe, and 

 already specialists are attempting to widen the group to embrace other forms which, 

 like Gonia Meigen and its allies, have microtype eggs; for the present, however, 

 it is best to retain Goniini in a narrow sense in which it can at least be readily recog- 

 nized and its members identified on external characteristics. 



Four genera occur in the Oriental Region, but none is restricted to the area. 

 Both Goniophthalmus Villeneuve and Pseudogonia Brauer & Bergenstamm occur 

 also in the Ethiopian and Australasian Regions, and Spallanzania Robineau- 

 Desvoidy and Turanogonia Rohdendorf are found also in the southern and eastern 

 Palaearctic area. The type-genus Gonia Meigen, which is widely represented in 

 the Holarctic regions and in Africa, is apparently absent from the Oriental Region 

 and areas further east, though this will not remain true if the definition of Gonia 

 is widened during future revisionary work: at present the genera of Goniini are 

 rather closely split, and it is by no means certain that Turanogonia, Pseudogonia 

 and Spallanzania justify the status of separate genera (subgeneric or even species- 

 group status within a widened concept of Gonia might be a more appropriate taxo- 

 nomic treatment when the group is better studied). Concerning the non-occurrence 

 of Gonia in the Oriental Region it should be noted that although Gonia oestroides 

 Walker, 1858, was described from 'Hindostan' and is a true Gonia there was almost 

 certainly an error in the recorded provenance. Examination of the oestroides 



