THE ANATOMY OF THE ADULT MOSQUITO 



77 



separated by an almost imperceptible interval, and is 

 minutely ribbed and striated in a manner that requires the 

 best lenses to properly resolve. Perhaps the commonest 

 outline is that of a racquet, but as will be seen from the 



Fig. 16. — Scales and other chitinous appendages of Mosquitoes. 



a, Scale of frontal tuft of Anopheles Rossii, x 375 diams. ; b, detail of 

 membrane of the same scale, x about 1,000 diams. ; c, to show form aud 

 arrangement of the scales on one of the veins of the wing of Cnlex fatigans 

 (Wied.), X 75 diams. ; d, to show form and arrangement of scales on margin 

 of wing of C. fatigans (Wied.), x 75 diams. ; e, scale of nuchal corona of 

 C. hortensis, x 185 diams., after Ficalbi ; /, scale of thoracic tomentum of 

 C. pipicns, X 185 diams., after Ficalbi ; g, scale of alar margin of C. pipicns, 

 X 208 diams., after Ficalbi ; h, scale of thoracic tomentum of C. spatlii- 

 palpis, X 185 diams., after Ficalbi; i, scale from the leg of C. pipiens, x 208 

 diams., after Ficalbi ; j, k, Z, various forms of wing scale, after Arribdlzaga ; 

 amplification not stated ; m, last tarsal joint of C. pipiens, 9 showing 

 1, empodium, 2, tarsal claws, and 3, Pulvilli, after Ficalbi ; n, fore, mid, and 

 hind tarsal claws of C. pulchriventer sp. u. <? ; o, single claw of fore leg of 

 An. Rossii, $ . 



above figure, they vary in shape almost as greatly as tlie 

 leaves of plants, and some are so long and narrow as to be 

 almost indistinguishable from the hairs, which are found 

 everywhere, either interspersed among the scales, or, as in 

 the abdomen of many Anopheletes, constituting the entire 



