174 THE CANADIAN ENTOMOLOGIST. 



Chrysalis. — Eye cases prominent, pointed, thorax keeled ; wing 

 cases very large, projecting ; on the anterior part of the abdomen dorsally, 

 is a very large circular disk-like projection, its sides somewhat creased. 

 Abdomen tapering, the last segments rounded. Cremaster large, flat, 

 fastened by its numerous hooks in the mat of silk spun by the larva and 

 from which the pupa is suspended. Wing cases and abdominal hump 

 subtranslucent dark olive-gray ; thorax dull purplish, mottled with white ; 

 abdomen nearly all sordid white but shaded with gray and black dorsally, 

 laterally and in a double broad ventral band. The terminal segments 

 and cremaster are entirely black. Length 25 mm. ; thickness through 

 thorax 7 mm. ; height of abdominal projection 3 mm. ; greatest width 

 through wing cases 8 mm. 



Food-plants. — Willow (Salix), poplar ( Fopulus), choke-cherry 

 ( Prumis demissa). 



The second brood of larvae probably hibernate in the second stage in 

 the manner usual in Llmenitis. 



ENTOMOLOGICAL FIELD DAY.* 



July 4th was a great field day for the entomologists, it having been ar- 

 ranged to meet at Jamesburg, N. J. The societies represented were the 

 Entomological Section of the Academy of Natural Sciences of Philadelphia, 

 the Entomological Society of Philadelphia, the Feldman Collecting Social 

 of Philadelphia, the Brooklyn Entomological Society and the Newark Ento- 

 mological Society. About forty members were present, among whom 

 were Dr. Henry Skinner, Curator of the Entomological Society of Phila- 

 delphia and editor of the Entomological News ; Professor J. B. Smith, of 

 New Brunswick ; Isaac C. Martindale, of Camden ; James Johnson, of 

 Frankford ; William J. Fox, Assistant Librarian of the Academy of 

 Natural Sciences ; C. W. Johnson, Curator of the Wagner Institute ; Dr. 

 Castle, Messrs. Liebeck, Neutze, E. Wenzel, H.Wenzel, Schmitz, Trescher, 

 Hoyer, Bruner, Philip Nell and Philip Laurent, of Philadelphia, and 

 Messrs. Machesney, Angell, Loeffler, Angelman, Sherman, Thompson, 

 Ottolengin, Leng, Merkel, Roberts, Pearsall, Davis, Baier, Hess, Dietz 

 and Sieb, of Newark, New York and Brooklyn. 



*From the Philadelphia Public Ledger. 



