.1 Monograph o/ Egyptian Diplera. 25 



31 (32) Proltosc'is geniLulate, the récurrent |);ift 



ns loil<j as the basai Teph. conyzae, Frfld. 



32 (31) l'roltoseis geiiieiilato, but the récurrent 



part niuch shorter than the basa.l. 



33 (34) Wings with only six hyaline spots in 



R5 cell, the 5 apieal ones almost of 

 equal size Teph. argyrocephala, L\v. 



34 (33) Wings with nK)re than 6 hyaline spots 



in R5 eell, of unequal size Teph. praeccx, Lw. 



35 (24) Onlv 2 hvaline spots on Costa between 



ends of RI and R2 + 3. 



3G (39) Base of Ist M2 cell hyaline. 



37 (38) Apex of Ist M2 dark, with onc large 



hyaline spot close to médian cross-vein Teph. spreta, i.w. 



3S (37) Apex of Ist M2 cell dark, with 2 or 3 



small spots clo.se to médian cross-vein. Teph. matrioariae, Lw. 



39 (36) Base of Ist M2 cell dark Teph. tesseiiata. Lw. 



40 (23) AVings otherwise marked. 



41 (48) Wings with a dark area from which 



radiate several narrow dark bands like 

 spokes of wheel. 



42 (43) Dark area at base of wing Schîri. mcebiusi, Reck. 



43 (42) Base of wing hyaliiie. 



44 (45) l'ive dark radiating narrow bands 



reaching wing tip, Tiypan. augur, Fhiui. 



45 (44) Less than 5 dark radiating narrow 



bands reaching wing tip. 



4(3 (47) Thi'oe dark radiating narrow liands 

 reaching posterior apical part of wing 

 (termen) Trypan. amoena, Fuflu. 



