292 
DESCRIPTION. 
Scale of Female (Fig. 12, b). — Kather more than a millimeter in diameter; consid- 
erably convex; grayish white in color; exuvia of larva rather more than half way 
between center and anterior margin. The whole scale covered with a thin layer of 
the onter skin of the bark. Exuvia dark orange yellow, brownish along sutures, 
and frequently with a brown spot in the middle; naked, glossy, smooth. 
Pig. 13—Diaspin lanatus: Adult female, ventral surface — greatly enlarged (original). 
Female (Fig. 13). — Color bright orange; shape broad oval, rounded anteriorly and 
obtusely pointed posteriorly; anal plate brownish; segments of abdomen very dis- 
tinct throughout their entire length, and, in drying, the lateral margin of abdomen 
becomes somewhat serrate through inden- 
tation of sutures at margin ; dorsum with 
two distinct impressed subdorsal lines 
and with a quantity of glistening, white, 
delicate, fibrous, waxy secretion on each 
side of these subdorsal impressions from 
fifth segment, leaving the median space 
and disk of anal plate including pores 
naked; five rather distinct groups of 
pores of extremely variable numbers; 
anterior group composed of 10, 12 to 18 or 
20 ; anterior lateral groups of from 23 to 
32, and posterior lateral from 22 to 32 ; 
anterior group transversely oval, lateral 
groups longitudinally oval; those on each side being nearly confluent; four distinct 
lobes each side of tip of anal plate ; median lobes much incised for half their length 
Fig. 14— Diaxpis lanatm: Fringe of anal plate of 
adult female — greatly enlarged (original). 
