No. 13(51 ALEYkOMDS OF CALlFOkKtA—HEMlS. 489 



veins about seven-eighths length of wing; in the front wing, distad of 

 flexure, the main vein gradually becomes h\ss distinct; the basal vein- 

 let arises at ver}' base of wing and is short; vein of hind wing, straight. 

 Antennae with segment 1, cup-shaped, as broad as long; segment 2, 

 pyriform, slender, bearing a num])er of delicat(> haii's set in conspicu- 

 ous conical ])ases; segments 3 to 0, inclusive, cylindrical and closolv 

 ringed with minute hairs. Genitalia usual. 



Male. — Length, 1..5mm.; fore wing, 1.6 ))y().T5mm.; hind wing, 

 1.33 by 0.56 mm.; hind tibia, <)..5 mm.; hind tarsus, 0.25 mm.; prox- 

 imal segnuMit, O.lt) mm. Genitalia usual. In other respects, as in 

 the female. This is the only instance where the author has found the 

 male uniformly larger than the female. 



Cotypes.—^o. 7084, U.S.N.M. 



Collected on lihai/iiHisi cah'foruica, Umhellulnrin eal!f(yrnica, and 

 IL'teroiiieh's arhut/folla^ from the Santa Clara Valle}" and the slopes of 

 the Santa Cruz Mountains; also on Rhamnus crocea., Arctostajjhylos 

 riKinzaniid from King's Mountain, and on Arctostaphylos from the 

 Yosemite Valley. All the immature stages are on the under sid(>s of 

 the leaves, while the pupa-cases are found frequently on the upper 

 sides. In view of the fact that the Iarv;e are able to move about in 

 their first stage onl}', it is puzzling to tind a supposedly fixed stage 

 isolated in this manner. 



Eggs were collected in April and May, 1901, and again in Septem- 

 ber and October of the same 3"ear; the other stages within a week 

 later. Verified adults not common, but a few were l)r(>d out the last 

 week in A.pril, 1902. 



2. ALEYRODES SPLENDENS, new species. 

 Plate XXXVI, fig. 68, and Plate XXXVII, fig. 09. 



Egg. — Size, about 0.18 b}^ 0.98; dark yellow, umnarked, pedicel 

 long, at one side of the base on the convex curve. 



Larva. — (Stage 1.) Size, about 0.26 by 0.15 mm.; oval, pale trans- 

 parent yellow; a narrow, solid band of white wax around the margin. 

 There is an uncrenulated, thickened, marginal rim bearing nine pairs 

 of hairs set in conical bases; of these, seven pairs are lateral and reach 

 from the cephalic margin about one-half the distance toward the caudal 

 end; the remaining pairs are the usual caudal and latero-caudal hairs. 

 Dorsum free from secretion, convex, and with five pairs of spines; a 

 pair on the cephalic region, two pairs on the thorax, and a pair on the 

 abdomen, about midwa}^ between the first segment and the vasiform 

 orifice. Abdominal segments barely visible. Vasiform orifice and 

 operculum as in pupa-case; lingula minute, spatulate, hidden by opiM- 

 culum. Eyespots single, red. Legs and antenna?, functional. 



Larra. — (Stage 2.) Size, about 0.4 by 0.27 nnn.; elliptical; shining, 

 pale golden brown; lateral fringe of white. waxcMi threads, ragged dis- 



