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The size in both ¢ and 2 is extremely variable, specimens of the former 
measuring from 3.5-5 millimeters and of the latter 4—6 millimeters. 
Wing length ¢ 1.75-2.25 millimeters; 2 2-2.75 millimeters. 
Mania, Nearos Occwentat, Inorno, P. J. (Banks, Coll.). 
Time of flight: This mosquito has been captured in Manila during 
every month of the year. 
Types of d and 2 No. 5773 in Entomological Collection, Bureau of 
Science, Manila, P. I. 
This mosquito is the most annoying form found in the Islands and like 
its congener, 8. fasciata Fabr., is extremely persistent in its attacks, return- 
ing repeatedly however many times it may be repulsed. Upon alighting 
it walks around to find a suitable place to bite, its favorite points of attack 
being the back of the neck, the ankles, and the back of the hands when 
one is holding a book. It will in no case alight upon white articles 
except such as one may be wearing, such as white socks or white clothes 
that have been recently removed from the person. Its time of attack is 
from 1 to 3 p. m. and just as night falls, when the daylight is too dim for 
reading. It appears also to be a forerunner of a storm, as it usually 
attacks one with great energy just before signs of a shower appear. This 
mosquito is very wily, usually attacking one from behind, and when 
struck at, almost invariably flies behind one’s chair to renew the attack 
as soon as everything appears to be quiet. This is not noticeable with any 
other species of mosquito so far observed in the Philippines. 
CULEX LUTEOLATERALIS Theob. 
CULEX LUTEOLATERALIS Theob., Mono. Culic. (1901), 2, 71 and Pl. XXVII, 
fig. 108. 
ee GON. Tnsectorum, Culicide; (1905), 27. 
Giles, J. Trop. Med. (1904), 7, 368. 
The Philippine specimens of this mosquito differ from the type by the 
presence in the ? of two parallel, submedian, orange-golden strixw on the 
mesothorax for its entire length. In the ¢ these stripes are from about 
the middle to the posterior margin only. The palpi are destitute of any 
orange scales at the base. Mention should also be made of the fine, 
golden hairs interspersed among the flat scales of the dorsum of the 
abdomen and the greenish tinge of the cream-yellow basal bands. It 
could hardly be said of the Philippine specimens that the hind ungues 
are nearly straight, rather that they are straighter than in most species 
of Culex and with the tip sharply curved. 
A notable feature of this species is the difference in appearance of 
the d and 2 wing-scaling. In the former the scales both median and 
lateral are certainly reduced almost to a minimum, there being never 
more than 8 on Vein VI for instance, and these lie exactly median, end 
upon end, while the same is true of Veins IT, III, [IV and V except that 
there are some 5 or 6 elongated lateral scales at the end of Vein IIT and 
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