Pomona Collejic, Clarciiiont, California 25 



incisions shallow except at the caudal margin where they become 

 deeper and the wax tubes longer and narrower. The thoracic 

 tracheal folds are not evident. 



Adult female: — Length 1.2 "mm.; general color light yellow 

 with head and thorax darker than abdomen. Legs and mentum 

 dusky. Paronychium blade-like ; wings immaculate. Forewing 

 length 1.2 mm., width 0.40 mm. Radial sector, media and cubitus 

 present : radial sector with two flexures. Media short ; cubitus a 

 faint line except at the base. Antennae dusky ; average lengths 

 of segments as follows: segment 1, 0.024 mm., segment 2, 0.158 

 mm., segment o, 0.109 mm., segment 4. 0.062 mm., segment 5, 0.072, 

 segment 6, 0.044 mm., segment 7, 0.056 mm. Eyes very dark red, 

 constricted but not divided. 



This species was collected by Professor E. 0. Essig, for whom 

 the species is named, on Ulmus sp. at Mission San Jose, September 

 1916. 



Aleyrodes pruinosa Bemis 

 1904— Proc. U. S. Nat. Mus., vol. 27, p. 491. 

 Food Plant. — Heteromeles arbutifolia. 



Localities. — Berkeley, Catalina Islands, Leland Stanford Jr. 



University. 



Aleyrodes spiraeoides Quaintance 



1900— A. L. Quaintance. Tech. Ser. No. 8, Div. Entom. U. S. 

 D. A., pp. 36-38. Orig. desc. 



Food Plants. — Aesculus calif ornica. Convolvulus sepium, Loni- 

 cera involucrata, Nicotiana glauca. Opulaster capitatus. Plantago 

 major, Sonrluis oleraccu=:. Solaniim douf/la^ii, Tro.riinon sp. Col- 

 lected by the writer on Asel'ipias sp., at Berkeley, October 1916 

 and in Santa Cruz County, November 1920; Ceanothus sp.. Los 

 Gatos, December 1917; Hypericwin androsamum on the University 

 of California Campus, November 1916: Melaleuca hypericifolia on 

 the University of California Campus, November 1916 and on Pen- 

 tastamen at Capitola, December 1917. 



Localities. — Alameda, Berkeley, Los Angeles, Los Gatos, Santa 

 Cruz County. 



Ah'urotulus nvpln olepidJs (Quaintance) 

 Syn. : extraniens Bemis 

 1900— A. L. Quaintance. Tech. Ser. No. 8, Div. Entom. U. S. 

 D. A., pp. 29-30. Orig. desc. 



Food Plants. — Acrostichum capense, nephrolepis. 

 Localities. — Conservatories of San Francisco. Type locality, 

 Pennsylvania. 



