522 GEOLOGICAL SURVEY OF THE TERRITORIES. 
EXPLANATION OF PLATE IV. 
KSTHERIA CALIFORNICA Packard, and details. 
1. The male, much enlarged. 
2. Second antenna of female, X about 30 diameters. 
Fig. 3. First antenna of female, <x about 30 diameters. 
4. First leg of female, X about 30 diameters. fi 
5. Leg of third pair of female; br’, the einer long and slender upper 
branchial lobe forming the oviger. 
Fig. 1 drawn by Mr. E. Burgess, the details by the author, with the camera lucida. 
