A Uoïiograph of Egypùau Diplcra. 97 



MILESIN^ 



*). svniTTA St-FAUG. U- SERV. 



Sx-FAm;. & Serv., Eiieyclop. Méihod., X. S88. (1825). 



SYNONYlMY:^ C'oprina Zett., Ins. Lapp., 584.45. (1838), 

 nec. Rob.-Desw., 1830. Dipt. 



Planes Rond., Arehivio per la Zoolog., III. 9. (1863). 



Xylota Westw., {;ru>c Meig.), Introd. inod. C!a.^.sif., Synopsis, 

 136. (1840). 



Face witli a sharp central keel; the vertex of tiïe maie is long and 

 narrow ; frons bare, short and slightly produced. Eyes large, quite 

 bare, toxiching for a fairly short distance in the maie, but widely se- 

 parated in the female. Antennee moderate with a rather long and 

 i'oiinded third joint, wliich bears dorsally a long and bare arista. 

 Thorax rather long and with the base, huineri, the sides down to the 

 suture, as well as ail the pleurae, covered with pale, light coloured 

 dust. The abdomen is thin, elongated and brightly coloured with 

 yellow and black ; the anterior margin of the second segment runs 

 forward at each side, for a distance equal to nearly half 

 the length of the first segment. Legs with the two anterior pairs 

 quite normal but with the hind femora extremely dilated and 

 possessing short rigid spines beneath. Wings with the radio- 

 raedian cross-vein upright and placed at the middle or cell M2. 



This genus shows some relationship with Eumervs. Although 

 it is a very small genus, it is very widely distributed and seems to 

 be exceedingly abundant wherever it is rei:) resent éd. It occurs 

 commonly in the Ethiopian Région, Nubia, Aden, Sierra Leone, 

 Sénégal, Madagascar etc., Asia, North America, New Zealand, 

 throughout Europe and in Eastern India. 



