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Pomona College Journal of Entomology 



Adult. — Very minute (0.7 mm. long) with large wings. Color — Wine or 

 dark reddish purple, covered with fine, white, waxy powder to give it a grayish 

 appearance. A)iteimae — Normally long and hairy. Eyes, dark purple. Legs, 

 slender and hairy. Wings, hyaline with typical venation. Thorax large 

 with hairy prothorax and dark dorsal band between wing-bases. Abdomen 

 narrow and segmented distinctly at margins. Anal filaments nearly as long as 

 body, and snow-y-white. There is usually a spine-like style at tip of abdomen. 

 This is in two divisions, resembling an ovipositor. 



Figure 146. Eriococcus adenostomae: 

 A, adult male; B, pygi.liuni of tViniile; C. S;irtiflc'il .■intcniia of fciiiiile: P, normal 

 7-articled antcuna of femalo. 



I chanced upon a very thick infestation of this sca^e in the mountains 

 above Santa Paula at an altitude of some 2000 feet. Only Chamiso {Adenos- 

 toma fasciculatum) served as a host plant, although growing in' the same 

 localities were numerous other trees and shrubs. Undoubtedly the insect 

 had been in this locality for some years, for old dead shrubs bore traces 

 of the female sacs. The infestation, though thick, had not spread over an 

 area of more than 100 feet in circumference, while the host plant covered 



