Bb4 
knee. This position is common to both males and females, and is illus- 
trated at fig. 8. When the body is held parallel it will generally be 
found that one of the middle or hind legs has been broken off. They 
are very delicate and readily break. 
Fic. 8.—Actual resting positions of 4. quadrimaculatus on a horizontal ceiling and ona side wall, 
drawn from life—enlarged (original). 
The writer has taken the liberty of having fig. 9 engraved from a 
drawing sent him by Mr. C. O. Waterhouse of the British Museum. 
Mr. Waterhouse made the drawing himself and wrote: ‘*‘ Whatever 
Fic. 9.—Anopheles at left, Culex at right—enlarged (drawn by C. O. Waterhouse). 
may be the attitude of Anopheles, it is all in one line. Culex is angu- 
lar, humpbacked.” 
Note of female.—The peculiar hum of the mosquito is well-known. 
There is a distinct difference between the hum of Anopheles guadrima- 
