THE MOSQUITO 



81 



carries the antenna, and between these two 

 eminences a band of pigment runs across 

 the head, from which six symmetrically placed 

 immovable feathered hairs project, wreathing 



Fig. 20. — Side view of head of a fully grown larva 

 of Anopheles maculipennis. b. Brush ; c, antenna ; d, 

 palp of maxilla ; m, hooked hairs at edge of maxilla ; 

 p, median tuft of hairs ; r, thickened rim of chitinous 

 covering to head ; a, large, feathered hairs which 

 overhang head ; t, mandible ; u, larval eye ; v, eye of 

 adult, forming above and behind u. (From Nuttail 

 and Shipley.) 



the head, as it were, with a halo. There are 

 many other hairs on the head, whose number 

 and shape are of great systematic importance. 

 The anterior edge of the head carries on each 

 side of its under surface a conspicuous brush, 

 very like a shaving-brush, the constituent 

 hairs of which are arranged in a spiral, and 



