Séance du 19 Novembre 1924 
359 
pubescence all over which is rather short and erect 
except on the dorsal side of the two basal segments 
and on the lateral margins of the second segment 
where it is much longer and tufted; occasionally the 
pubescence on the second, third and fourth segments 
is reddish-yellow but such coloured hairs never ex- 
tend as far as the lateral margins of these segments 
while in N. aegyptiaca Wied. the pubescence on the 
thorax and abdomen is entirely reddish to reddish- 
yellow except rarely on the underside of the abdo¬ 
men at most where it may bey blackish. Male genita- 
lia fairly prominent, very dark reddish-brown; female 
ovipositor also dark reddish-brown. 
Legs with all the femora black except their ex¬ 
treme apices reddish-yellow and all the tibiae and 
tarsi reddish-yelllòw; the pubescence on the femora is 
blackish and the front femora are more densely pilose 
and the hairs are longer than on the remainder of the 
legs; on the tibiae and tarsi the pubescence is much 
shorter, inconspicuous and reddish-yellow. 
Wings very similar to N. aegyptiaca Wied., yel¬ 
lowish-brown at the base, with a broad transverse 
brown band across the middle and hyaline at the 
apical fourth; the transverse brown band varies some¬ 
what in colour, in some specimens being inconspi¬ 
cuous, but it is always darker near the upper margin 
of the wing than below, just as in aegyptiaca. Squa- 
mulae rudimentary. Halteres dark reddish-yellow to 
blackish. 
The following note on the oviposition of this in¬ 
sect may be of some interest : at 2 p.m. on the 21st 
Bull. Soc. R. Entomologique 
24 
