Pomona College Journal of Entomology 411 



acres and even miles uninterruptedly. This is accounted for by the fact 

 that the scale has two internal parasites which I have been alile to hatch from 

 them in considerable numbers. 



This beautiful species was first described by Mr. Edvv. M. Ehrhorn in the 

 Canadian Entomologist, Vol. XXX, p. 244 (1898). 



Mr. T. D. .A. Cockerell also had an article on the same insect in the Can. 

 l{nt. Vol. XXX. p. 246 (1898). 



This insect (Fig. 145) was first sent to the writer by Roy K. ISishop, 

 Horticultural Commissioner of Orange County. Since that time 1 have ob- 

 tained it in the vicinity of Santa Paula. 



The long white egg sac makes it at once conspicuous and easy to detect. 

 it occurs in great numbers on the California Sage (Artemisia californica) 

 during the later summer months. That it never increases to any damaging 

 numbers may be explained by the fact that it is parasitized by a dipterous in- 

 sect which is an egg feeder. In some dozen mounted females I was able 

 to obtain several of the puparia of the parasite, but was not fortunate enough 

 to obtain the adult fly. 



