Seance du Vt Octobre 1923 139 



lo each other; llie third iiulciilatioii ^\hich is somc- 

 \\h:it niKhilated and siluatcd in the apical fourth of 

 the winf^-, extends from just above IV^i+o and down- 

 wards across Mi to tlu^ lower win^ margin; all these 

 three indentations very ^^radually widen from their 

 bases to the lower mar<rin of the win^r ; the radio- 

 media n cross-vein is close to the median cross-vein 

 bein^X at a distance from it which is ecjual to ils own 

 length. 



Squamulae and haltères yellowish. 



I have bread one adult of this species from Hie 

 floral spike:^ of Lavaiuliila coioiioplfoUa IVìir. which 1 

 had collected in Wadi Ilnssein. It very probably how- 

 ever also lives on Sfachys aegypHaca, upon which 

 jilant the adult may commonly be found from March 

 to end of June in many of the wadis near Ibdwan. F 

 have cajttured it myself from l^'ebruary to the eiul of 

 June (1922 - 23) ill the Wadi Hoff, W. Rashid, W. 

 Hussein, W. Rishrash, W. Garawi as well as alon^; 

 the Suez Road, always on the Slachys and also by 

 « sweeping » the flowering spikes of Lavainlnla. 



