38 



ENTOMOLOGICAL NEWS. 



[February, 



species as the Argyjzmds, Pyrameis cardid or Danais archippiis. 

 This season has proven an unusually productive one, and fully 

 twice the number of butterflies were on the wing this year than 

 appeared in either 1891 or 1892. 



Our climate and soil are so dry that no agriculture is successful 

 without irrigation, and I attribute this season's productiveness 

 in the Lepidoptera of this immediate vicinity to systems of artifi- 

 cial irrigation which have been in successful operation here only 

 the last two seasons, and no doubt all msect life so dependent 

 upon vegetation, will steadily increase as the amount and variety 

 of plant-life is multiplied year by year by the introduction of 

 agriculture under our irrigation systems along the Tongue and 

 Yellowstone River bottoms. 



In the interest of the readers of the Ent. News I append a 

 list of the species of diurnals that I have taken about Miles City 

 during a three years' residence here : 



Papilio zolicaon, rare. 

 Pieris rapcB, common. 



' ' protodice. 

 Anthrocharis olympia, jiot rare. 

 Colias eury theme, common. 



" eriphyle, common. 

 Danais archippus, rare. 

 Argynnis idalia, one 9 . differ- 

 ing a little from eastern spec. 

 Argynnis edwardsiz, not com. 

 ' ' nevadensis ' ' 

 " cypris, rare. 

 " sp. , one. 

 Euptoieta claudia, one of the 

 most common (averaging 

 small in size). 

 MelitcEa, three species ; not 



common and local. 

 Phyciodes tharos, rather com. 

 " carloia, quite com. 

 Grapta zephyrus, one. 

 Vanessa antiopa, not common. 

 " calif ornica, one. 

 " tnilberti, rare. 

 Pyrameis cardui, not rare. 



" ? sp. nov. sp., pos- 

 sibly Hy. Edw. hybrid caryce 

 et atlanta. 



Limenitis weidmeyerii, rare and 



local. 

 Limenitis disippus, rare and 



local. 

 Coenonyynpha ochracea, rather 



common. 

 Satyrus alope-olympus , rare. 

 " cetus, rare. 

 *' charon, rather com. 

 Chionobas varuna, several spec- 

 imens taken at ranch in July 

 100 miles east of Miles City. 

 Thecla niphon, rare and local. 

 Chrysophanus hypophlcBas, not 



rare. 

 Chrysophanus rubidus, rare. 

 Lycceyia metis sa, common. 

 Pamphila, two or three species,. 



all rare. 

 Pyrgus tessellata, common. 



" sp., not common. 

 Pholisora catzillus, common. 

 Eudamus tityrus, one. 

 ;• sp. one. 



