172 



surrounded by black. The discal mark is also pale orange, almost 

 oblong in shape, and surrounded by black hand. The posterior 

 line is almost parallel with the margin, slightly sinuate, dentate 

 about the middle, and continued in the same form on the second- 

 aries which are slightly more transparent than the upper wings, 

 bearing also a pale orange discal mark surrounded with black. The 

 under side has the markings of the upper distinctly repeated. In 

 one of the two $ examples before me there is a bunch of lemon 

 yellow hairs at base of the primaries beneath, and the same color is 

 continued to the base of the legs and the sides of the lower surface 

 of the margin. This is evidently not the result of discoloration, as 

 the specimens are wonderfully fresh. 



? . Similar to the $ , but a little larger, and with the four 

 posterior segments of the abdomen, clear white, above and below, 

 the middle segments only being narrowly edged with reddish 

 brown. The stigmeta in ? , are very strongly marked, jet black. 



Exp. wings, $ . 48 m. m. Length of body, 21 m. m. 



Exp. wings, ?. 62 m. m. Length of body, 27 m. m. 



2 (5 . ? . Prescott, Arizona. (I. Doll.) 



Types. Coll. B. Neumoegen. 



I have no hesitation whatever in placing this remarkable in- 

 sect in Packard's genus, which it seems to connect in some respects 

 with Ilemileuoa, its remarkable coloration being, however, the very 

 reverse of tlie latter genus. I regard the species as the handsomest 

 Bombyx discovered for many years in the United States, and as 

 such it gives me unusual pleasure to dedicate it to my friend, Mr. B. 

 I^eumoegen. 



It is to his liberality and boundless enthusiasm in the cause of 

 entomology, that we are indebted for the knowledge, not only of 

 this beautiful insect, but of many other of supreme interest and 

 importance, and the example set by Mr. Neumoegen is in every 

 way worthy of imitation by those who have the power to help the 

 progress of science, not only in this, but in other branches of study. 

 For nearly two years Mr. Neumoegen has kept an earnest and in- 

 telligent collector in the field, who has poured into the studios of 

 entomologists unheard of treasures, many of which yet remain to 

 be described. Such devotion to entomology is as honorable as it is 

 rare, and should excite in the minds of all students a feeling of the 

 deepest appreciation. 



I hope in some future number to present the readers of 

 " Papilio " with a figure of this most charminsr insect. 



A NEW HEMILEUCA FROM SOUTH-EASTERN ARIZONA. 



By B. Neumoegen. 



Hemileuca Yavapai, n. sp. 



$ Head and appendages and joints of antennse dark, rusty 

 brown. Pectinations of antennse blackish brown. Prothorax 



