166 



INSECTS INFESTING ORANGE TREES, ETC. 



Fig. 143. 



Fig. 144. 



some varieties of vegetables. The apparent color of this scale 

 insect at first sight is white, with a dark colored head. On 

 examination, it is found that the part indicated by the dark 

 color is the insect, and the white portion a bag or case spun by 

 the insect to conceal her eggs when deposited. 



Fig. 143. — Cottony Cushion Scale — color, yel- 

 lowish-white. 



The females (Fig. 148), after ovipositing (the 

 egg case included), differ in size, some measuring 

 six lines in length ; but the general length is from three to 

 four lines ; width, one and one half to three lines, and slightly 

 tapering toward the posterior end. Each female deposits from 

 two hundred to five hundred eggs. In one instance I counted 

 seven hundred and three. The eggs are oblong-ovate in form, 

 and of a pale red color. 



Fig. 144. — Larva of Cottony Cushion Scale — 

 color, red. 



Larva (Fig. 144) — color, body red; antenna^ 

 six jointed, clubbed at the apex, on which are 

 six long hairs — color, smoky black ; legs, smoky 

 black (the joints of the antenna' and legs arc 

 lighter in color than the balance) ; there are six 

 long anal hairs ; the margin of the body and back is also dot- 

 ted with hairs ; length of body, one thirty fifth of an inch. 



Fig. 145. — Female of Cottony Cushion 

 Scale Insect — color, reddish-ljrown. 



Mature female (Fig. 145) before spin- 

 ning egg-case. The female insect during 

 her growth assumes a variety of colors : 

 principally yellowish-red. with irregular 

 blotches of white, green and yellow. At 

 full growth, and before spinning egg-case, 

 : tlie hairs on the anal margin and sides 

 are used as spinerets, exuding a cottony-like secretion of which 

 the egg-case is formed. During her growth, and before begin- 

 ning to spin her egg-case, the females exude a honeydew, 

 which forms a black smut on the l)ranclies and foliage, as 

 described in the chapter on the Black Scale. 



Male insect (Fig. 146, Plate 3), winged — color, thorax and 



she is ovoid in form 



