NO. 1362. ALEYRODIDS OF CALIFORNIA— BEMIS. 495 



scattered over the entire dorsum. The marginal crenulations are 

 rounded and have acute reentrant angles; at the ciuidal maroin. on a 

 line with the furrow, the crenulations are pointed and clo.sely crowded 

 together. There is a pair of short, tapering hairs cephalo-laterad of 

 the vasiform oriiice, the usual latero-caudal htiirs are short, delicate, 

 and set in tubercled bases, hut the conspicuous caudal spines, usually 

 found in Aleyrodids of this type, were not present in any of the 

 numerous specimens examined. Within the al)domen are two large, 

 orange-colored visceral glands. Vasiform orifice broadly conical, 

 bounded dorsally by a dark raised rim, its inner lateral and caudal 

 margins with conspicuous corrugations or folds, extending downward 

 and inward; caudal end emarginate and with a median lo))e or process; 

 operculum subovate, more than one-half length of orifice; dorsum con- 

 vex and covered with minute hairs; lingula well developed, spatulate, 

 about two-thirds as long as the orifice, distal portion with three pairs 

 of lateral lobes and a terminal emarginate lobe; on each side, in the 

 angle between the distal lateral and the apical lobe, there is a long seta 

 which projects caudad beyond the orifice, the entire organ denselj' 

 setose; cephalad the outline is prolonged to the two pairs of crescent- 

 shaped thickenings in the tegument of dorsum, which are more strongly 

 chitinized and darker colored than usual. On the ventral surface the 

 rudimentary legs are evident, but no trace of the antennae can be seen. 

 Eyespots dark red, divided into two round lobes. 



Late pifj)a. (Male dissected from pupa-case). Abdomen pale 

 5'^ellow; head and thorax pale dusk3^-brown; legs and antennae white; 

 wings inunaculate; eyes black and constricted, verj^ broad; antenna 

 four-segmented; segment one, cup-shaped, broader than long; segment 

 two, pyriform, densely setose, with stout hairs scattered over it; seg- 

 ment three, subcylindrical, very long and narrow, insertion with seg- 

 ment two very slender; central part somewhat constricted; near the 

 distal end there is a stout rather blunt spine; segment four, closely 

 ringed with minute hairs. Mentum very long, dusky-brown; apex 

 darker. Wings too crumpled to describe in detail. Abdomen with 

 two, large, orange-colored glands. Genitalia ordinary . 



Adnlt female. — Body too distorted to measure accurately; forewing, 

 1.3 by 0.6 mm.; hind wing, i>.9 by 0,5 mm. Forewing with one 

 rather large duskj" spot at and including end of main vein; basal vein- 

 let arising at some distance from the base of the wing; main vein with 

 but a single flexure and not curved at apex; hindwing with dusky spot 

 as in forewing, vein straight; abdomen pale yellow, head and throax 

 darker; eyes large, reniform, by transmitttni light, brown-l)lack; 

 antenna? usual, segment seven without notch and witii an ajiical hair. 

 Genitalia ordiiKuy. 



The dusky spot oji w'ings which is present in the adult, but not seen 

 in the latt; pupa, may need the :iction of the air to render it \ isible. 



