inside. (Drawn from Howard's description.) The male was un- 

 known to Mr. Howard. 



This species is also widespread and quite a general feeder. It has 

 been bred from Axpidiofus pcrnlclos/is (Cal.); Chionaspis euontjnn 

 (Ma.); MyHlaspi* </lorerii on orange (D.C.) ; and Mytilaspib pomorum 

 (Gal.). Mr. E. M. Ehrhorn suspects that it is also parasitic on the 

 greedy scale (Aspidwhis rapcu-). See Insect Life, vol. iii, p. 487. 



Coccaphagus cih'iiui* Craw MS.: This parasite has appar- 

 ently never been described. It is 0.03 of an inch in length. Ke- 

 garding the value of this species as a parasite, the following letter 

 from Mr. D. W. Coquillett, published in the "California Fruit 

 Grower," Sept. 1889, is quoted: 



Concerning the parasite of the red scale in the San Gabriel Valley, Acting 

 Entomologist Howard writes me that it is probably a new species belonging to 

 the genus Coccophagus. It is a minute four-winged fly scarcely as large as the 

 head <>f a small pin; its eggs are laid singly in or upon the scales, and the larva 

 or grub that hatches from this egg feeds upon the scale insect, and after com- 

 pleting its growth arid passing through its preparatory stage, it gnaws a round hole 

 through the scale and thus makes its escape. This parasite occurs in nearly all of 

 the orange groves in the San Gabriel Valley, and in some of them its work is very 

 noticeable. This is especially the case in the large. Chapman groves, in which I de- 

 tected this parasite two years ago. During a visit to this grove a few days ago 

 it was almost impossible to find any young red scales on the infested trees, while 

 in other localities where this parasite does not occur, almost every leaf contains 

 one or more of the young scales, this being the season of the year when they are 

 most abundant. Mr. A. B. Chapman informs me that there is less red scale on 

 his fruit this year than there has been since first his trees became so seriously in- 

 fested with these pests. I have taken the necessary steps for introducing this par- 

 asite into a locality where it did not previously exist, but it will be several months 

 yet before the result of this experiment can be determined. 



This parasite destroys the red scale of the orange (Aspldiotus 

 auranfii), and its yellow variety (A. citrinus) in California; and 

 Mr. E. M. Ehrhorn has also bred it in California from the San 

 Jose Scale (A. perniciosus). See Insect Life, vol. iii, p. 487. 



NO. n. THE WHITE PEAR SCALE (Aspidiotus rapax Comstock). 



Plate I, fig. 2. 



Scale of Female. Very convex; exuviae between center and one 

 side, and covered with secretion. Scale is gray, somewhat trans- 



