368 Bulletin de la Société Royale Entomologique d'Egypte 
bands . 19 
Abdominal tergites with basal pale lateral spots.. 
. 22 
19. Abdominal bands yellow. Mesonotal scales dark 
reddish brown. Culex pipiens , L. 
Abdominal bands white . 20 
20. Abdominal bands usually narrow, and sharply 
contrasted with the dark part of the tergite. 
Hind tibiae with a pale lateral stripe. Meso- 
notum with golden brown scales. Male palpi 
longer than the proboscis . 
. Culex perexiguus, Theo. 
Abdominal bands broader, hind tibiae without a 
lateral stripe . 21 
21. Mesonotum with pale golden scales : abdominal 
bands occupying about one third of the terg¬ 
ites : male palpi longer than the proboscis.. . . 
. Culex sinaiticus, n sp. 
Mesonotum with darker golden scales : abdo¬ 
minal bands occupying one half or more of the 
tergites : male palpi the same length as the 
proboscis . Culex laticinctus, Edw. 
22. Mesonotal scales dark reddish brown. Stalk of the 
upper fork cell in the female very short, less 
than one fifth as long as the fork. Proboscis 
of the male without a group of long hairs at 
the middle beneath . . Culex pipiens , L. (var.) 
.Mesonotal scales a duller dark brown. Stalk of 
the upper fork cell slightly longer. Proboscis 
