36 



CLASSIFICATION OF THE ALEYRODIDJE. 



[Translation.] 



Larva (last stage). — The body is of decisively oval shape, with its 

 anterior end slightly more acuminate than the posterior end. It is 

 slightly convex, and along its margin it is surrounded by a sufficiently 

 conspicuous stratum of a grayish-white waxy secretion, upon which 

 rests the free end of the body of this insect. The body of this insect, 

 along its free margin, is considerably inspissated, and it presents all 

 around an uninterrupted and very narrow waxy fringe. On the 

 dorsum this insect is partially covered by other waxy glomerules, and, 

 furthermore, it has near the median line of the dorsum four very 

 long and robust waxy filaments, such as can be seen in figure 1 



Fig. 4. — Leonardius lahillei: 1, Pupa casso, dorsal view ; 2, pupa case, ventral view ; 



5, anterior abdominal wax pore ; Ji, spine of pupa case ; 5, vasiform orifice of pupa case ; 



6, margin of pupa case ; 7, leg of pupa ; S, wings of adult ; 9, leg of adult ; 10, foot of 

 adult, 11, female genitalia. (Redrawn from Leonard!.) 



If the wax, which more or less invests the surface of the body of 

 the insect, is removed its color is a ferruginous tint, darker along 

 the marginal region, but less so toward the central region. 



Moreover, it can be noted that the cephalic region of the body is 

 not very distinct from the thorax. The thorax is more distinct from 

 the abdomen, as the divisions between the thoracic segments, as com- 

 pared with the abdominal segments, are less well marked. 



The consistency of the dorsal tegument is not uniform, but, on the 

 contrary, it shows zones, variable in dimension, in which the cuticle 

 is very thin and transparent, and these zones correspond to groups of 

 numerous and minute wax-producing glands whose presence causes 

 these to assume the appearance of so many cribrate membranes. 



