﻿44 POMONA JOURNAL OF ENTOMOLOGY 



Phenacocciis raiiionae n. sp. 



The form (Figure 28) is distinctly oval, tapering slightly toward the anal 

 end. The body varies from 4 to 6 mm. in length, and from 1 to 3 mm. in width. 

 The covering is a snow-white cottony wax, which entirely hides the insect's body. 

 The segmentation is very distinct. Along the median line of the dorsum there 

 extends a well-defined ridge, on either side of which is a similar indistinct ridge 

 parallel to it. On the margin of each segment is a stout waxy lateral plate, the 

 two anal wax plates being twice as long as any of the rest, and much heavier. 

 Beneath the covering the body is greenish-yellow. \\'hen treated with K O H 

 the body becomes perfectly colorless and transparent, the legs and antennae re- 

 main brown. 



The antennae (Figure 23 E) are /-articled, long and rather stout. Article 3 



Figure 28. Phenacoccus rarr.onae 



is longer than 8. The comparative lengths of the remaining articles may be found 

 in the cut. All of the articles are hairy. The mouth-parts are short and stout — 

 the rostral loop, reaching nearly to the caudal end of the body. The legs (Figure 



24 E) are long, stout, and covered with short hair. The femur is longer than 

 the tibia, the tarsus about one-half the length of the tibia, the claw is slightly 

 curved with a tooth on the inner margin. The spines of the anal lobes (Figure 



25 E) are shorter than the six circumanal spines. The body is covered with hair. 

 On the lateral margins of all the segments are dark callouses bearing from 2 to 8 

 denticles. 



