Explanation of Plate VIII. 



Illustrating Dr. T. A. Chapman's •' Note on the habits and structure 

 oi Acantluypsyche opacella, H.-Sch." 



Fig. 1. Shows disposition of ^ wlien pairiufr, except that wings 



are raised instead of depressed in order to show legs. 



The head is a trifle thrown back by the changed position 



of the wings. 

 „ 2. Female, latere- dorsal view. 

 „ 3. Female sac opened during pairing, from a specimen in 



glycerine. The glycerine has caused some shrinkage 



of the ?. 

 „ 4. Attempt to show the cremastsal-cocoon silk in ^ s^ac with 



its valvular arrangement. 

 ,, 5. Diagram of tracheae of anterior wing some days Itefore 



emergence of moth, from camera sketches. 

 Figs. 1 — 4 are amplified about 4 diameters. 



