Jan. 15,1925 
Scale Insects of the Subfamily Ortheziinae 
119 
disk type only, occurring both dorsally 
and ventrally, most abundant ventrally 
in the posterior portion of the area 
inclosed by the ovisac band, only 
rarely heavily chitinized and nearly 
always with a distinctly wider marginal 
area around the 4 loculi than is usual 
for the genus; body spines relatively 
groups or clusters to correspond pre¬ 
cisely with the scalelike plates of secre¬ 
tion; ovisac band rather broad, inter¬ 
rupted only once in each half, com¬ 
posed only of spines, with a single row 
of disk pores along its inner margin, 
inclosing, so far as can be determined, 
6 broad transverse bands of rather 
5 - WoAe. 
Fig. 13 —Orthezia cheilanthi: Adult female, body, dorsal and ventral; X about 31 
elongate, slender, normally only slightly 
tapering and with apices slightly but 
distinctly swollen in contrast to the 
usual rather strongly tapering, apically 
rounded or pointed spines occurring 
in most species in the genus; spines 
arranged in the usual 11 marginal and 
10 submarginal clusters on each half 
dorsally but, so far as can be deter¬ 
mined, not broken up into small 
loosely grouped spines, these, in com¬ 
bination, almost completely filling the 
space surrounded by the ovisac band; 
anal ring apparently not unusual for 
the genus, with the usual 6 rather long 
tapering setae, the inner margin of the 
pore band on each half sharply angu- 
late anteriorly and posteriorly, the pore 
bands sometimes united or nearly so 
at their apices. 
