Oct., '07] ENTOMOLOGICAL NEWS. 327 



ticeable over the cocoon, somewhat like the network of ropes outside of 

 a balloon. This network soon disappears, however, probably weather- 

 ing off. 



EXPLANATION OF PLATES. 



From Photographs by the Senior Author, all but the First Two 

 Much Enlarged. 



Fig. 1. — Oriental moth at rest on petiole of maple leaf. 



Fig. 2. — Same at rest on tomato leaf. 



Fig. 3. — First instar seen from above. Microphotograph. Spines 



retouched. 



Fig. 4. — Second instar from above. Microphotograph. 



Fig. 5. — Same in side view. Microphotograph. 



Fig. 6. — Third instar from above. Microphotograph. 



Fig. 7. — Same from side. 



Fig. 8. — Fourth instar, side view. 



Fig. 9. — Same, dorsal view. 



Fig. 10. — Fifth instar, side view. 



Fig. 11. — Sixth instar. side view. 



Fig. 12. — Same, dorsal view. 



Fig. 13. — Seventh instar, side view. 



Fig. 14. — Same, dorsal view. 



Thecla (Incisalia) polios. 

 By Henry Skinner. 

 This species was described by Cook and Watson in the 

 Canadian Entomologist, Vol. XXXIX, Page 202, 1907. I 

 have known the butterfly for about twelve years and I possess 

 thirty-five specimens from various localities. I do not con- 

 sider it specifically distinct from Thecla mossi Hy. Edws. I 

 have examined the type of mossi and through the kindness 

 of Mr. William Beutenmuller possess a fine colored figure of 

 it. I also have homotypes. The species has a wide distribu- 

 tion and is quite variable. In mossi there is a white edge 

 to the mesial band on the underside of secondaries, and in 

 some specimens this becomes a hoary band or fascia about 

 2 mm. wide. The species extends across the continent from 

 the Atlantic to the Pacific. I have specimens from New Jer- 

 sey, New Hampshire, Nova Scotia, and Colorado. I have 

 seen specimens in the collection of Mr. T. N. Willing, taken 

 at Olds, Alberta, Canada, and the type ( & ) come from Esqui- 

 mau, Vancouver Island. The species is figured on pi. 38, fig. 

 331, in Wright's Butterflies of the West Coast. 



