Pomona College Journal of Entomology 



407 



white, with the outer edge of the last joint yellowish. As they grow older, 

 they incline to purple, which becomes deeper as the insect irn.-icc.r<c.s m age. 

 The adult female is about .05 of an inch (1-3 mm.) in length. The sucking 

 proboscis is longer than the body. (See Fig. 144 D. ) 



Male. — The scale of the male is smaller than that of the female, about .04 

 of an inch ( 1 mm. ) in length, and usually straight. The color varies from 

 shades of brown to yellow when young, becoming darker with age, and reach- 

 ing a dark brown in the older females. Generally speaking, densely 

 clustered colonies, including both sexes, have a reddish hue. The male insect 

 is a minute, two-winged fly, .01 of an inch in length. Its body is pale pink in 

 color, and about one-fourth as wide as long. The eggs are elongate oval 

 in shape, passing from a light to a purple color before hatching." H. A. 

 Gossard, Fla. Agrcl. Exp. Sta. Bull. No. 51, 1900, pp. 112-113. 



Figure 144. Details of Coccidae: 



A, leg; B, antenna of female of Orthezia artemisiae; C, 

 line of female of Lepidosaphes gloverii. 



pygidium; D, body out- 



LIFE HISTORY 



"Development of the Insect and Formation of the Scale. — Our observations 

 show that the development of Glover's Scale, is, up to certain point, almost 

 parallel with that of M. citricoJa (purple scale), and that its failure at that 

 point may be abnormal will be seen from the following : 



March 27, eggs under observation began to hatch. The young larvje are 

 purplish, with the front of the head and the margin of the body yellowish. 

 Most of them settle almost immediately, and at two days the cottony secretion 

 has covered one-half of the insect. At four days it reaches beyond the eyes, 

 and the larva itself seemed to be more elongated, with the joints more dis- 

 tinct. At six days most of them were entirely covered, with the excretion ex- 



