96 



THE MONTHLY BULLETIN. 



in the interior. So far it has been taken in the following counties: 

 San ]\rateo, Ventura, Los Angeles, San Bernardino and Orange. 



Food Plants. — Black sage (Bamona stachyoides) , the mountain 

 monkey Hower {Diplacus glutinosus) , Mesemhryanthemum sps. The 

 species was taken on the first two hosts by the writer, and on the last 

 by B. B. Whitney, who found it in great quantities along the foothills 

 of San ]\Iateo County. First taken by Coquillett on Yucca whipplei. 

 Also on Y. filifera, Y. australis, Lanlana, Ceanothus Jiirsutiis, banana, 

 orange, lime. 



Natural Enemies. — Coquillett bred an internal parasite from speci- 

 mens taken in Los Angeles County. This he named Blastofhrix 



yucccB Coq. 



THE ARTEMISIA MEALY BUG. 



I'scudococcus urtemisiw Essig. 

 (Fig. 75.) 



General Appearance. — Much narrower than the usual forms, though 



Fig. 75. — The artemisia mealy bug 

 (Pseiidococcus arteniisiw Essig) on brancli. 

 (Essig, P. C. Jr. Ent.) 



