A Monograph of Egyptian Diptera. 73 



TABLE OF THE EGYPTIAN GENERA 

 OF ERISTALINAE. 



I (ii) Cell Rl closed; eves hairy, face with a 



central knob ERISTALIS 



1 (2) *Arista plumose or distinctly pilose. . . . Eristalis 



2 (1) Arista bare or very shortly pubescent. 



3 (4) Face unicolorous Eristalomyia 



4 (3) Eyes with markings. 



5 (6) Eyes with 5 obscure transverse stripes. . Eristalodes 



6 (5) Eyes with obscure spots which are sepa- 



rated or confluent. 



7 (8) Eyes practically touching on the frons in 



the male Lathyrophthalmus 



8 (7) *Eyes well separated on the frons in the 



male Eristalinus 



1 1 (i) Cell Rl open; eyes bate HELOPHTLUS 



Eyes of male jusl touching Mesembrius 



Not represented in Egypt. 



