.1 Mouograph o/ Egyplian Diptera. 109 



described as cylindrical ; it is very shining black with a very délicate 

 hrownish pubescence. 



Legs with the femorn blnelusli exeept their extrême apices yel- 

 low; the eoxae, tibiae and tarsi are eiitirely yellow to reddish- 

 yellow. 



"Wings very siinilar tu thi^se of the preeeding sjiecies but distin- 

 guished l)y the (hiriser eolouratioii and by the more numerous hyaline 

 spots in R5 cell which are of unequal size; the basai third of the 

 wing is hyaline with some dark spots which are very similar as in 

 T. argyrocephala, but the hyaline spots in the apical two thirds of 

 the wing are as follows : the stigma is daris: brown exeept for a round- 

 ed yellowish spot immediately after the middle; RI cell contains 4 

 hyaline spots, the first of thèse, which is the smallest is near the 

 t)ase and immediately below the liase of the stigma, the three others 

 are in the apical half of the cell, equidistant and the first of thèse 

 touches the apex of the stigma ; in R3 cell there are f rom 6 to 7 spots, 

 those in the basai half are rounded and usually very small and may 

 be 2 or 3 in numher, then come two quadrate spots, close to each 

 other after the radio-median cross-vein and two (usually running 

 together and forming one large spot) at the tip, superimposed, the 

 upper one touching the tip of R2 + 3, and the lower the ajncal })ortion 

 of R4 + 5; R cell contains two fairly large rounded spots towards the 

 middle. the lower margins of which touch Ml ; 7 to 8 spots in R5 

 cell, which are unequal, the largest being near the base, above the 

 médian cross-vein, two or three small, rounded spots towards the 

 middle and four rounded, almost equal spots in the apical half of 

 the cell; in Ist M2 cell there are 4 hyaline spots, one very large in 

 the basai half and three smaller spots in the apical half; 2nd M2 

 cell also contains 4 spots and Cul cell several large hyaline spots 

 which almost always run together; costal bristle double ; médian 

 cross-vein not straight; ail the veins are yellow but blackish in cor- 

 respondance with the dark spots. 



Squamulae pale yellow; haltères yellow. 



Only a single spécimen, a female, is so far known from Egypt, 

 wbich I hâve captured at Kerdacé on 27.V.21. 



T . inaecox is known in Central Europe and has been recorded 

 from Asia Minor, Algeria, Madeira and Canary Islands. 



As far as I am aware the food plant of this species is unknown. 



