28 



Journal of Entomol(it;\ and Zoology 



fine, delicate hairs set in circular bases. Delicate latero-caudal 

 marginal hairs are present but cephalo-marginal hairs and caudal 

 spines are lacking. 



Adults unknown. 



This species was described from three specimens of the pupa 

 taken by the writer on Arctostaphylos manzanita at Pine Hijls, 

 San Diego County, May 1917. 



Locality. — Pine Hills, (type) 



Aisterochiton diasemus (Bemis) 

 (Aleyrodes diasemus Bemis) 

 1904— Bemis. Proc. U. S. Nat. Mus. vol. 27, p. 516. Orig. desc. 

 Food Plants. — Ribes glxtinosnm, Sijmpboricarpos raceynosus. 

 Localities. — Alameda, King's Mountain, Leland Stanford Jun- 

 ior University, Menlo Park, San Francisquito Creek. 



Asterochiton diminutis, new species 



Pupa case : — Size 0.53 mm. by 0.33 mm., shape elliptical, very 

 convex, extending high above the leaf particularly in the cephalic 

 region the ventral surface of which is projected into a blunt point. 

 Color smoky white, parasitized specimens very dark brown. The 

 wax secretion of the dorsum consists of an irregular row of 

 tapering, glassy, white, waxen rods arising in the submarginal area 

 and which extend upward and outward over the margin of the 

 case and are about as long as one-third the width of the case ; also 



Kip. ."i. Aslerochitdii tliiiiiinitis n. sp. a, pupa-case; b, side view of tlie pupa- 

 case; c, vasiform oiKice and section of the caudal maijrin; d, fore- 

 winjT of the adult; e, anterior niarj;in of the forcwinjr; f, claw of the 

 adult; g, first three segnn'iils of the antenna of the adult; h, male 

 genitalia. 



