47 
7. Aleurodicus minima n.sp. (Plate VI, figures 63-67.) 
Pupa-case.—Size about 1.17 by 0.71 mm., subelliptical, many speci- 
mens are somewhat narrowed cephalad. Case usually widest across 
region of second abdominal segment. Color yellowish, varying to 
brownish. Empty case semi-transparent, except for the irregular 
brown coloration on margin, and at the dorsal pores. Margins 
slightly crenulated, with very shallow indentures between the lateral 
wax tubes. There is no marginal rim. Just within the margin, all 
around, is a closely set row of short disk-like tubercles or papille, 
from which is-produced a fringe of almost straight, tapering, glassy 
waxen rods from one-third to one-half as long as pupa-case is wide. 
On the more central dorsal region a light mealy waxen exudation may 
occur. Pupa-case slightly raised from surface of leaf by vertical 
fringe of wax, which usually remains attached to leaf on removal of 
dried specimens. On the dorsum, nearer the margin than center, is a 
row on each side of seven round and well-defined compound pores. 
Considered transversely, these occur in pairs; a pair on cephalic seg- 
ment; a pair on metathorax; three pairsalong the abdominal segments, 
and two pairs in the region latero-caudad of the vasiform orifice. The 
caudal pair is somewhat the largest, with the cephalic pair next in 
size; the rest are subequal. These pores, individually, consist of a 
cylindrical, brownish-colored rim with a central, white, rod-like strue- 
ture. On cephalic margin of case is a pair of sete and a pair on the 
caudo-lateral region, a seta on each side. There is a pair of small, 
tubercled set just within caudal margin. Around the margin, just 
within the submarginal series of papillz, is a row of small tubercled 
setee, usually from 24 to 28 in all. 
Vasiform orifice elongate-cordate; about three-fourths as broad as 
long; cephalic margin straight, caudal end bluntly rounded. Oper- 
culum, subelliptical, cephalic margin straight, about one-third as long 
as orifice. Lingula usual, broad, extending quite to caudal end of 
orifice, bearing two pairs of sete distally. On ventral surface, rudi- 
mentary feet and antenne quite distinct. 
Adult ¢.—Length, about 0.86 mm.; fore-wing, 1.1 by 0.52 mm.; 
length of-hind tarsus, 0.21 mm.; length of hind tibia, 0.88 mm.; length 
of hind femur, 0.26 mm.; color, yellowish white, with dorsum of thorax 
brownish. Eyes reddish, undivided, though with a pronounced con- 
striction. Joint 1 of antenne short, not one-half the length of second. 
Joint 2, narrow at base, truncate at distal end, widest centrally. Joint 
3 long, longer than remaining joints together, distal joint ending in 
an attenuated process, bearing a terminal seta. Anterior tarsus about 
three-fourths length of posterior. Distal tarsal joint of first pair legs 
two-thirds length of distal joint of mentum. Wings slightly clouded 
around margin and with a very dilute oblique transverse band centrally ; 
at fork of distal branch of vein is a pronounced spot of brownish-black 
