ENTOMOLOGICAL NEWS 



AND 



PROCEEDINGS OF THE ENTOMOLOGICAL SECTION 



ACADEMY OF NATURAL SCIENCES, PHILADELPHIA. 



VOL. XI. APRIL, 1900. No. 4. 



CONTENTS: 



Skinner North American Hesperidse 413 



Holland Alaska Insects 416 



Wheeler Genus Hypocharassus 423 



Banks A New Genus of Atropidae 431 



Dodge List of Catocalse 433 



Editorial 434 



Marlatt Aspidiotis Diffiuis 425 i Economic Entomology 436 



Barrett Papilio Electryon 428 j Entomological Literature 440 



Coquilett New Genera of Diptera.... 429 | Doings of Societies 446 



North American Hesperidae. 



By HENRY SKINNER, M.D. 



Pamphila hobomok was described by Dr. Harris in 1862, 

 since which time it has been confused with za bit Ion by a num- 

 ber of authors. Students have had so much trouble with these 

 species that I thought it desirable to show them side by side. 

 Hobomok has two females ; a yellow tawny one like the male, 

 and a black one ( pocahontas), whereas zabulon has but one 

 kind of female, and that is black or dark brown. Yellow 

 females of zabulon have been mentioned and described, but I 

 have never seen one in a collecting experience of twenty-five 

 years. I have also examined all the large collections of the 

 country excepting one. If any person can send me a yellow 

 female zabulon I will be greatly indebted ; zabulon is decidedly 

 the smaller species of the two and lacks the pronounced black 

 nervures of the other. The golden spots on the zabulon female 

 are much more sharply denned, and on the underside it is much 

 brighter and has a pronounced purple color. Mr. Philip Lau- 

 rent has frequently reared these two species and found them 

 abundantly distinct. With the aid of the figures no one can 



