—191— 



habitat. At the extreme summit of Mount Union, the highest point of 

 this \ran of the Territory, 1 took two specimens oi Papilio Bairdii, Edw., 

 and saw it no where else. 



Of all the Butterflies I saw, Eudamus Tilyrus, Fab., was the most 

 abundant. It fed on Robinia Neo-Mexicana. Lyccetia Pseudargiolus, 

 B. -L. , and Lemonias Xaxs, Edw., were also abundant. The Coliads 

 were rare. I took but two Euiythemc, and saw one specimen of a yellow 

 one which I could not capture. From what I saw of their flight, I feel 

 pretty certain that Aspen and Willow are the food plants of Heterochroa 

 Californka, Butl., Lime7iitis Lor^uinii, Bois. , L. Weidermeyeni, Edw., L. 

 IVsuIa, (which was found \\\ i\\Q x'SiXXQiy Arizoneftsis, Edw., only), and 

 Vant'ssa Calif or nica, Bois., as well as o{ Papilio Daunus. Bois. 



As in California Heterocera were extremely scarce. "Sugaring" 

 gave no insects whatever, and light was scarcely better. I did not see a 

 single Catocala where Mr. Doll found hundreds. 



The time of my visit was probably the worst time of the year, except 

 Winter, for collectmg Lepidoptera. It w-as just at the end of the dry 

 season, and no rain having fallen for several months, the earth was hard 

 and vegetation parched. The rainy season begins from July ist to July 

 15th, and continues generally about a month. The early months of the 

 year, say in April and May, ought to be good, but probably August and 

 September are better. 



As it was however, I took ']'] species of Butterflies in all, in very 

 little more than two weeks collecting. 



In Coleoptera I did very little collecting, but from what I did obtain 

 am certain that either in Southern California or Arizona one might have 

 done very well indeed at the time of my visit. 



•» * ♦■ 



Larva of Hemileuca Nevadensis. 



By Geo. D. Hulst. 



The larvae were found full grown at San Bernardino, S. California, 

 during the last week in June, on both Willow and Cottonwood, appar- 

 ently to some extent favoring the former food plant. Mr. Doll has in- 

 formed me he found the larv;^ in the Big Chino Valley, Arizona, where 

 only Cottonwoods were found. 



The full grown larva is from 2|- to 3^ inches in length. The head 

 is dark reddish brown, slightly conical in shape, with a slight furrow on 



