84 CLASSIFICATION OF THE ALEYRODIOE. 
Within the margin of dorsum of case all around is a series of 
spines, 12 or 13 on each side. Margin faintly crenulate (PI. XXXI, 
fig. 5) though the marginal wax tubes are very obscure. On the 
dorsum are seven pairs of compound wax pores — one pair at cephalic 
end of case and six pairs on abdominal region. The two cephalic 
pairs of the abdominal series are about one-half the size of the others 
and nearer the median line; in these pores the cup is short, reaching 
scarcely above derm of case. The spinnerets occur in a circle at base 
of cup, and are not vertically extended into tubes as in many species 
of Aleurodicus. The central process is well developed and is broken 
up into* some 8 or 10 separate rods (fig. 4). Mesad of each of the first 
and second pairs of abdominal wax pores is a group on each side of 
simple wax pores. Cephalad of each of the pores of the first pair of 
abdominal wax pores is an indistinctly stellate structure. These 
simple pores and stellate structure are discernible only in the colorless 
empty case. 
Vasiform orifice (PI. XXXT, fig. 3) broadly cordate, about as 
broad as long. Operculum about one-half length of orifice, broadly 
convex on caudal margin, the sides rounded. Lingula large, spatu- 
late, partly exserted, bearing distally two pairs of spines, and 
minutely setose. On ventral surface rudimentary feet and antennae 
very evident. 
Adult female. — Body about 0.85 mm. long. Color yellow; legs 
and antennae paler; wings white, unmarked (PL XXXI, figs. 6, 7). 
Forewing about 0.8 mm. long by 0.33 mm. wide ; rudimentary media 
arising from K s about basal one-sixth of length of wing. Length 
of hind tibia 0.3 mm. ; tarsal joints of hind legs subequal in length, 
together measuring about 0.17 mm. Antenna? (PL XXXI, fig. 9) 
four-jointed, about 0.46 mm. long, joint III considerably exceeding 
joint IV in length. Claws (PL XXXI, fig. 10) long, slender, with 
spinous paronychium. 
Male. — Not seen. 
Type. — No. 1477G, U. S. National Museum. Described from sev- 
eral parasitized pupae on leaves, numerous normal and parasitized 
pupa; in balsam mounts., and several adult females in balsam mounts. 
III. Subfamily Ai.kvhodin.t. 
In the members of this subfamily the media of the forewing is 
lost, but the cubitus is retained as a distind vein in most genera. 
The radial sector forms the main vein of the wing, ami radius , may 
or may not be present. No compound pores are present in the pupa 
case, and the paronychium is broad and hairy. 
Cl \i i:.\ <>l I ill All YKUMN K. 
\. Ptoewlag wiiii radlnsi, radial nctor, sad cubital present AlettroeMton. 
B. ITorewlng with only radial BOCtOT ami CUbltUf pr O t O Of Mcitnxlcs. 
< '. Porewlnf with only radial sector present \ tontasLc Ilia. 
