512 PROCEEDINGS OF THE NATIONAL MVSEVM. vol. xxvii. 



wing-.s too crumpled to measure accurately. Color of body, dusky 

 white, frons slightly darker; legs and antenna? white; mentum white 

 with brown tip; wings immaculate; the almost entire lack of color is 

 unusual. Eyes, large, reniform in shape, apparenth^ l)lack, but l)y 

 transmitted light, reddish on the edges. Antenna? with segments four 

 to seven inclusive, shorter than usual; segment seven, sub-fusiform, 

 with a hair at tip and a conspicuous spine at about mid-length, 



CotyjMs.—No. 7092, U.S.N.M. 



Collected by the author on the leaves of Ceauot/iti.^ callforn'tcux. at 

 Pacific Congress Springs, Santa Clara County, April 16, 1901, and dur- 

 ing June, 1901, on King's and Black mountains. The specimens are 

 not plentiful and there is seldom more than one on a leaf. It is 

 sometimes found together with ^1. glacialis. Many pupa-cases have 

 been isolated, but onh^ two adult males have been secured. 



30. ALEYRODES PHALiENOIDES Blanchard. 



Aleyrodes phalsenoides Blanchard, Ins. Voy. du Chile, de Gay., 1840, p. 319; 

 Ann. de la Soc. Ent. de France, Dec, 1867, p. 399. 



31. ALEYRODES MERLINI, new species. 

 Plate XXIX, figs. 17-19. 



^gg. — Size, 0.22 by 0.1 mm.; pale yellow; unmarked; pedicel at 

 one side of base. 



Larm. — (Stage 1.) Size, 0.33 by 0.183; elliptical; pale yellow; 

 dorsum convex, void of pores, papilla? and secretion, but with a nar- 

 row marginal band of white wax. Margin with fifteen pairs of 

 equally spaced hairs, which are extremel>' long. Eye -spots single, 

 large and light red. Specimens so tilled with fungus that further 

 detail was impossi))le. 



Larva. — Size, 0.63 by 0.43 mm.; elliptical; the dorsal secretion is 

 usually separated into several irregular plates at the caudal margin, 

 while it is continuous around the remainder of the margin. In some 

 specimens the dorsal wax is disposed in a somewhat confused pattern 

 in which two parallel rows near the lateral margin and a central, 

 transverse row can be made out. Color, pale semi-transparent yellow; 

 dorsum convex, and covered with pores of several sizes; those nearest 

 the margin are largest and are arranged in rather definite lines; each 

 of the al)dominal segments has a transverse row; the smaller pores are 

 scattered irregularl3\ There is no marginal rim nor crenulations, and 

 the wax tubes are not evident; abdomen with distinct segments and 

 two crescent-shaped thickenings in tegument of dorsum cephalad of 

 the vasiform orifice; laterad of the anterior margin of the vasiform 

 orifice is a pair of small hairs; the usual latero-caudal and caudal hairs 

 are present, the latter short. Vasiform orlHce l)roadly o\ate, antei'ior 

 margin as broad as orifice is long; operculum a little more than one- 



