62 ENTOMOLOGICAL NEWS. [Feb., '09 



common in June and in September. The cocoons of a hymen- 

 cpterous parasite were found in two galleries, but no adults 

 have as yet been secured. 



EXPLANATION OF PLATE V. 



Fig. i. Pupa of Sesia polygonl. 



Fig. 2. Pupal chamber of S. polygonl in stem of Polygonum paronychia, 



Fig. 3. Sixth segment of larva of S. polygoni. 



Fig. 4. Extruded pupal shell of S. polygoni. 



Fig. 5. First two segments of larva of S. polygoni. 



Fig. 6. Larva of 5". polygoni. 



Fig: 7. Pupa of Pterophorus baccharides. 



Fig. 8. Caudal extremity of larva of P. baccharides showing anal 



plate. 



Fig. 9. Seventh segment of larva of P. baccharides. 

 Fig. 10. Nearly mature larva of P. baccharides. 

 Fig. II. First two segments of larva of P. baccharides. 

 Fig. 12. Pupal chamber of P. baccharides. 



All figures except 2, 4 and 12 more or less enlarged ; figs. 2, 4 and 

 12 about natural size. 



The Butterflies and some of the Moths of the 

 Mt. Shasta Region. * 



By FRANCIS X. WILLIAMS, San Francisco, Cal. 

 The writer spent a portion of the summers of 1901, 1902, 

 1903 and 1907 near the little town of Castella, on the banks of 

 the Upper Sacramento River, in the northwest portion of 

 Shasta County. During the summer of 1901, few insects 

 were captured and none preserved, as the writer did not then 

 possess the "mania" for catching butterflies which he now has. 

 In 1902, however, some real collecting was done, while in June 

 and July of 1903, which was by far the best of the four sea- 

 sons, a large number of species were taken. Although nearly 

 two months of the summer of 1907 were spent in assiduously 

 collecting Lepidoptera, fewer specimens were taken than in 

 my shorter stay in 1903. This was probably due to the fact 



* The Sphingidae, Saturniidae, Arctiidae, Sesiidae and Hepialidae 

 are given in full, other families of Heterocera represented in region 

 under consideration are incompletely listed or omitted. 



