PLATE LXXXV. 



Brachycolus STELLARI.E. (Page 147). 



Fig. 1. — Apterous viviparous female. 

 Fig. 2. — Black variety of the same. 

 Fig. 3. — Head, rostrum, and antennas viewed from 

 the under side. 



PsEN ATRATus. (Page 164.) 



Fig. 4. — Winged female, which channels the pith of 

 the briar, lays her eggs within, and stores the cham- 

 bers with living Aphides. 



Fig. 5. — A portion of a split briar, showing these 

 cells of their natural size. The portion drawn below 

 is magnified, in order that it may better show the 

 occasional double galleries separated by parchment- 

 like partitions (pj?), and sometimes by partitions of a 

 browner material (h). Apparently these last are con- 

 structed of pith. //. Are small masses of fgeces, and 

 dried skins of the victims which have been consumed 

 by the apodous grubs of Psen. 



