A Monograph o/ Egyptian Diptera. 107 



with the terminal i)ortion imnh shorter tliaii the basai; occiput dark 

 brownish-grey and possessing a grey pulverulence ; vertex yellowish- 

 grey with the ocellar triangle blackish ; antennae reddish-yellow and 

 covered with a very minute whitish pubescence and with a black, 

 microscopically pubescent arista • there are some small pale hairs 

 along the eye margins, cheeks and occiput, especially below where 

 they become much longer; fi.or. 2, i.oi\ 2; ail the bristles are black 

 except the upper s. or., the outer rt, the prt.. the ocp. and the genal 

 bristle pale yellowish. 



Thorax eutirely covered with a verv dense brownish-grey pul- 

 verulence which, on the pleurae is greyish. The pubescence is very 

 ])ak- yellowish ; scutellum yellow at the apex and bearing 4 bristles ; 

 ail the bristles are black except the posterior npl. and the pt. yellow. 



Abdomen entirely black and covered with a dense brownish-grey 

 pulverulence like the thorax; the pubevScence is longer as usual, pale 

 yellow and there are a few rather short black bristles at the apex 

 of the fifth segment: ovipositor shining black and as long as the 

 two apical segments of the abdomen together. 



Legs reddish-yellow except for an elongated spot on the outer 

 side of the front femora, a smaller spot on the middle femora and 

 the basai two thirds of the hind femora dark brown. Sometimes the 

 brown may be more extensive but the ti]3s of the femora are always 

 reddish or rusty-yellow. 



Wings hyaline with a dark brown reticulation which is more 

 intensive on the stigma. the latter being very dark brown with a 

 minute rounded yellowish spot in the middle and touching the costa; 

 costal bristle double; the base of the wing is almost entirely hyaline 

 except for a brown spot below the humerai cross-vein, a quadrate 

 spot across the middle of 2nd C. cell and a smaller spot near the 

 base of R cell ; the rest of the wing is best described as brown with 

 rounded hyaline spots as follows : 3 large equidistant, more or less 

 rounded spots in RI cell, after the stigma, the upper and lower 

 margins of which touch the costa and R2-I-3 respectively ; 6 to 7 

 variable spots in R3 cell ; 2 fairly large spots in R cell ; 6 hvaline 

 spots only in R5 cell, the five apical ones being of almost equal size; 

 2 large and 1 to 2 very small spots in Ist M2 cell; 1 large and 3 mé- 

 dium spots in 2nd M2 cell, the large one often running into one or 

 two of the smaller ones below it; 7 to 8 spots running: together and 

 extending over almost the whole of Cul and 2nd A cells, and finally 

 1 isolated spot below the médian cross-vein. 



Squamulae whiti.sh ; haltères yellow. 



Becker .states that he has found this .species in Cairo but I hâve 

 not vet seen a single spécimen from Etrviit. The above description 

 is made from a maie given me by Dr. Becker, originating from St 



