3/6 Bulletin de la Société Royale Entomologique d'Egypte 
The Fourth-Stage Larva (Figs. 
3 , 4 , and 5 .). 
Head dark brown, wider than Hong, widest 
through the eyes. 
Outer post-antennal tuft of four rather weak al¬ 
most simple hairs, scarcely visibly plumose even 
towards the tip. Both mid and inner pairs of post- 
antennal hairs exceedingly minute, the mid pair of 
two, and the inner pair of three short simple hairs. 
Antennae nearly as long as the head, brown, the ex¬ 
treme base darker, with numerous rather conspicuous 
spicules. Tuft of about 27 long hairs at almost three- 
quarters the distance from the base; the apical part 
beyond the tuft narrowed and slightly darker. 
Subapical pair of antennal bristles close to the 
tip and considerably longer than the terminal por¬ 
tion of the antenna. Terminal appendages an equally 
long bristle, a much shorter one, and a minute digit. 
Mental plate with a fairly large central tooth, the next 
three small, the fourth rather larger, the fifth very 
prominent and the sixth slightly less so, the seventh 
and last very small and separated from the preced¬ 
ing. 
Thorax and abdomen straw doloured, entirely 
and densely covered with minute hairs, the thorax 
«y ■ 
about as long as wide, the central prothoracic hairs 
three, arising from the posterior end of a pair of black 
pear-shaped tubercles. 
Comb of eighth segment of about twenty scales 
in an irregular double row, each scale rather elon¬ 
gated, the terminal part with long spines and the sides 
with a short fringe. Siphon dark, 0.90-1.00 mm. 
long, and about 4.6 - 5 .o times as long as broad at 
