EFFLATOUN. 



Abdomen fairly broad, entirely yellow to browiiish-yellow and 

 possessing an erect blackish piibescence except on the upper half and 

 latéral sides of the basai segment ; on the latéral margins of the three 

 last segments and at the apex there are some fairly long black 

 bristles; maie hypopygium small, oval, reddish to brownish-yellow 

 and bearing some broWn bristly hairs; female ovipositor yellow, 

 elongated, being almost as long as the al)domen, corneous and flat- 

 tened ; its pnbescence is similar to that of the abdomen, except on 

 the apical third where it is scarcer and less conspicuous. 



Legs entirely yellow with the front femora bearing each one 

 row of strong bristles and two rows of shorter bristles on the oiit- 

 side; the hind femora possess, each, three bristles near the apex, 

 above: the pnbescence is uniformly blackish ail over. 



Wings entirely hyaline W'ith the stigma and ail the veins yel- 

 low: costal bristle double but weak; radio-median cross-vein rather 

 oblique and placed after the middle of Ist M2 cell. 



Squamulae whitish: haltères yellow. 



The abcve description does not seem to correspond with that of 

 Loew and Schiner as regards the colour of the abdomen; they both 

 describe it as "yellow with four rows of rather small black spots and 

 which, occasionally in the maie are distinct only on the last segment, 

 in addition to which there is a small black and distinct spot in 

 each poster ior corner of the same segment." In a séries of more than 

 twenty spécimens f rom Egypt I cannot f ind any trace of thèse abdo- 

 minal spots, consequently I am led to believe that the entirely uni- 

 form colour of the abdomen is due to a local variation. 



T. virens is of a beautiful yellow^-green colour and with metallic 

 bluish-green eyes wdien alive. which colour disappears after death 

 and the spécimens remain of a dull greyish-yellow colour with a 

 very faint greenish tinge. 



This species has been bred in Europe from the inflorescence of 

 Centaiirea paniciilata by Frauenfeld. In Egypt it is not common — 

 I hâve fonnd it so far only in Marg, Wadi Hoff and in our garden 

 at Shoubra and my dates extend from March 12th to June 7th 1922. 

 T. virens has bcon recorded in Italy. S])ain, Germanv and Egvpt. 



TERELLIA PLANISCUTELLATA Becker, 

 (PI. II fig. 4) 



Beck.. Mitteil. Zool. Mus. Berlin, IT.l:i6.220. (Trypeta) (1903^. 



DIAGNOSIS: — A small entirely grey species with s(miewhat 

 opaque wings and W'ith the upper s. or. small and white. 



J 



