6 ENTOMOLOGICAL NEWS. [January, 



gray, becoming pale purple, a triplicate dark purple dorsal line, 

 the central one most distinct, the others broader and diffuse. All 

 these lines are more or less broken into mottlings. A similar 

 stigma tal line with some purple mottlings subventrally; venter 

 paler; spiracles black. The piliferous tubercles are normal in 

 arrangement, much as the warts in Halesidota, row (4) small, 

 posteriorly to the spiracles, row (7) apparently absent. The head 

 is held out flat, as in Gluphisia. 



Cocoon. Composed of several leaves spun together and lined 

 with threads. 



Pupa. Nearly cylindrical, flattened a little ventrally, gradually 

 tapering posteriorly, but of nearly even width, no part enlarged; 

 last abdominal segments rounded, cremaster long and slender, 

 terminating in a knob that, under the microscope, is seen to con- 

 sist of a row of radiating, strongly recurved hooks, which hold 

 firmly to the silk of the cocoon. Color dark red-brown, the 

 thorax and cases nearly black. Length n mm.; width 3.5 mm. 



Food-plant. Willow (Salix'). 



Larvae from Yosemite Valley, Cal. These larvae had but four 

 stages, and there are two broods in a year. 



Ichthyura bifiria, as well as / brucei Hy. Edw. , must come 

 very near to /. vau Fitch, if they are not merely western forms 

 of it, but the larva of / van is still unknown, so that it is impos- 

 sible to compare the early stages. 



-o- 



A NOTE ON CYCHRUS. 



By H. F. WICKHAM, Iowa City, Iowa. 



' ' Arizona has not, to my knowledge, furnished even a speci- 

 men of Cychride;" (Dr. Horn, in Notes on the Biologia Cen- 

 trali-Americana, monthly Proc. of Ent. Sec. A. N. S. June, 

 1886, p. ix.) During the Summer of 1890, while in the Final 

 Mountains, about eighty miles from Tucson, my friend and com- 

 panion, Dr. E. D. Peters, took four or five specimens of a Cy- 

 chrns (^Scaphinotus), which I thought to be Snowii Lee., near a 

 little spring. Later in the day a search by myself resulted in the 

 finding of another specimen. 



Our knowledge of the distribution of Cychrns has been won- 

 derfully extended during the thirteen years that had elapsed since 



