JOUENAL OF ENTOMOLOGY AND ZOOLOGY 



189 



of the attacks of the stem mothers which are numerous at that season 

 and which are busily engaged in giving birth to the succeeding gen- 

 erations. These individuals are easily recognized by their broadly 

 pyriform or robust bodies which are sometimes partially covered 

 with much or little white cottony secretion. The color of the body 

 varies from amber-brown to dark olive-green with dark broken 



Fig. 5 — Phyllaphis coweni (Cockerell). Stem mother with enlarged drawing of an 

 antenna at the top and a compound eye at the bottom. (Original.) 



transverse bands on the dorsum as shown in Fig. 5. The entire 

 body is covered with many very short hairs. The usual length 

 varies from 1.5 mm. to 2 mm. and the greatest width from 0.6 mm. 

 to 1 mm. The head is small and narrower than the prothorax. 

 The compound eyes are small and consist of three fecets each which 



