34 Journal of Entomology and Zoology 
on black locust. The specimens consisted of pupae with only three 
adults which were badly damaged. The pupae were attached to 
both sides of the leaf. 
Localities.—Pleasanton. (type) 
Tetraleurodes melanops (Cockerell) 
(Aleyrodes melanops Cockerell) 
1908—Cockerell. Bul. 67. Fla. Agr. Expt. Sta. p. 665. 
Food Plant.—Quercus sp. 
Localities—Alpine Tavern, Mt. Lowe. 
Tetraleurodes nigrans (Bemis) 
(Aleyrodes nigrans Bemis) 
1904—Bemis. Proc. U. 8S. Nat. Mus. vol. 27, p. 522. 
Food Plants.—Arbutus menziesii, Arctostaphylos manzanita, 
Ceanothus californicus, Clematis ligusticifolia, Hriodictyon cali- 
fornicum, Heteromeles arbutifolia, Lonicera involucrata, Prunus 
ilicifolia, Rhamnus californica, Symphoricarpos racemosus, Umbel- 
lularia californica. Collected by the writer on Salvia sp., Corona, 
May 1917. 
Localities.—Corona, Black and Kings Mountains, Pacific Con- 
gress Springs, San Ramon Valley, Santa Clara Valley, Santa Cruz 
Range, slopes of Sierra Morena Range, Stevens Creek. 
Tetraleurodes perileuca (Cockerell) 
(Aleyrodes perileucus Cockerell) 
1903—Cockerell. Bul. 67, Fla. Agr. Exp. Sta., p. 664. 
Food Plant.—Quercus sp. 
Localities —La Jolla. 
Tetraleurodes splendens (Bemis) 
(Aleyrodes splendens Bemis) 
1904—Bemis. Proc. U. 8. Nat. Mus. vol. 27, p. 489. 
Food Plants.—Rhamnus californica, Arctostaphylos sp. 
Localities—Leland Stanford Junior University, Yosemite 
Valley. 
Tetraleurodes stanfordi (Bemis) 
(Aleyrodes stanfordi Bemis) 
1904—Bemis. Proc. U. 8. Nat. Mus. vol. 27, p. 508. 
Food Plants.—Quercus agrifolia, Quercus densiflora. Collected 
by the writer on Rhamnus sp., Fresno, May 1917. 
