29 
Operculum subelliptical, about fchree*-fourths as long as wide and 
not quite one-half Length of orifice. Lingula about Give-sixths length 
of orifice, the distal two-fifths somewhat enlarged, and arrow-shaped, 
thickly setose, and terminating in two straight seta 1 , w hich reach quite 
to caudal end of orifice. Rudimentary feet on ventral surface quite 
distinct. 
Advlty . Length, about 0.74 mm.; fore-wing, 0.846 by 0.35 nun., 
hind tibia, 0.32 nun.: hind tarsus. 0. IT nun.; color. bright yellow, 
abdomen paler, with a deep reddish-orange spot, due to visceral gland; 
legs and antenna' pale yellow. Wings immaculate. Eyes undivided, 
hut somewhat constricted above the middle; dark brownish-red in 
color. Mentuxn usual; tirst joint, long, slender, widening gradually 
distad; second joint, short, thick, about one-third length of distal joint; 
distal joint, stout, gradually tapering from second joint to the blunt, 
brownish-colored point. Fore-tibia, six-elevenths length of hind-tibia; 
middle tarsus, four-fifths length of hind tarsus. 
Vasiform orifice triangular. Operculum, when elevated and seen 
in lateral aspect, bluntly conical, and the caudal margin appears 
minutely setose. Lingula long, stibcylindrical, tapering abruptly to 
an acute point; slightly curved, the convexity cephalad. Lingula 
apparently somewhat serrate, due doubtless to obscure seta3. In fore- 
wing, main vein nearer cephalic than caudal margin, extending distally 
about eight-ninths length of wing. Basal veinlet arising at very base 
of wing, apparently distinct from main vein, and extending obliquely 
caudad to margin f wing. Genitalia ordinary. 
$ . — Unknown. Collected by the writer on leaves of a species of 
PhysaUs at Bartow, Fla., July, 1897, and again in August of 1898 on 
leaves of cultivated okra at same place. Received by the Division of 
Entomology, United States Department of Agriculture, from Mr. E. 
L. Eames, Pomona, Fla., on leaves of sweet potato; Diy. Ent. No. 6421. 
Adult females were bred out by the writer from pupae collected on 
okra in L898. Type of immature stages 6421, described from numer- 
ous specimens. Type of adult 9 . specimens bred out by writer from 
okra. August L5, L898, 8 specimens. Types in Div. Ent. collection. 
24. Aleurodes mori Quaintance. 
Can. Ent., Vol. XXXI, pp. 1-4. On MbruiSp. at Tampa, Flu., and at Lake City. 
Fla., on TUia (tmrrinma, CnUicarpa ameriauia, JJquUUnnlnr sti/racijhia, Ihx apnea, 
and less frequently on Pewa ruro/inensis. 
25. Aleurodes nephrolepidis a. Bp. (Plate III, figures 26-30.) 
Egg. — Size about o.lM by o.oiw mm.; subelliptical. Stalk attached 
to one side of center of basal end. scarcely as long a> egg is wide; 
stalk appears to be jointed, and barbed at basal end. Kgg unmarked, 
yellowish. 
Pupa-case. — Size about 1 by 0.61 mm.; elliptical; color, dirty w hite 
to yellowish. Empty cases in balsam are very pale yellow; eyes of 
