4+ 



POMONA JOURNAL OF ENTOMOLOGY 



Phenacocciis rainonae 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 wdiich 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. When 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. Phenacorcus ramonae 



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. 



