PLATE XXIII. 



HEMILEUCA ARTEMIS. 



Fig. 1. — Female. Las Craces, N. Mex. Thorax rubbed in middle. Olive J. Oockerell del. 



Fig. 2. — Larva. New Mexico, June 1, 1893. Food, Sa!i.r. Bridgham del. 2,2a, natural size; 2b, dorsal tubercle, 



second segment; 2c, sixth segment. 

 Fig. 3. — Larva; fourth stage? New Mexico, June 1, 1893. Food, Salix. 3a, subdorsal tubercle; 3b, sixth segment; 



3c, first segment; 3d, fourth segment; 3c, eighth segment; 3f, twelfth segment. Bridgham del. 

 Fig. 4. — Larva; third stage. New Mexico, June 2, 1893. Food, Salix. 4a, natural size; 4b. dorsal tubercle; 4c, sixth 



segment. Bridgham del. 

 Fig. 5. — Larva; last stage. June 16, 1893. Bridgham del. 

 Fig. 6. — Larva of II. yavapai. Edwards collection. Bridgham del. 

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