.1 Morjoçjroph of Egyptian Diptera. 23 



KEY TO THE EGYPTIAN SPECIES OF TRYPANEIDAE 



1 (22) (61) Win»;s with dark bands, the bands 



not l)roken up with hyaline spots. 



2 (13) Tliorax hlack or dark grey. 



3 (10) Thorax at least partly shilling bhiek. 



4 (5) Scutelhim yellow at the tip "''"P"- macrura, Lw. 



5 (4) Seutellum shilling bhick at the tip. 



6 (!)) Wiiigs with 4 dark transverse bands. 



7 (8) Base of wing blark Sphenisc. debskn, Kim.at. 



b (7) Base of wing hyaline Sphenisc. aegyptiaca, 



Efflat. 



9 (6) Wings with une yellow traiisverse baiid 

 and apex of fore inargin yellow ; base of 

 wing with nnmerous small spots .... Cerat. capitata, Wied. 



10 (3) Thorax (hdl mat-grey. 



11 (12) Apex of wing broadly brown, with oiie 



hyaline oval spot between R2 + 3 and 



R4 + 5; scntellum dark Metasph. gracilipes, i.w. 



12 (11) Tip of wing dark oiily at extrême apex, 



SfUtelluni yellow Uroph. quadrifasciata, Meiu. 



13 (2) Thorax yellow or brown. 



14 (19) Wings with bright brown or yellow 



bands. 



15 (16) Thorax and scutellnni nnspotted Carp. incompieta, Beck. 



16 (15) Thorax and scntelhmi spotted. 



