Saturniidae 



This beautiful moth occurs in Arizona and northern Mexico. 



(4) Hemileuca tricolor Packard, Plate XII, Fig. 9, $ . (The 

 Tricolor Buck-moth.) 



This species, like the preceding, is found in Arizona and in 

 New Mexico. The larvae feed upon the Grease-wood, according 

 to report. 



Genus PSEUDOHAZIS Grote & Robinson 



This is a small genus of rather striking and exceedingly vari- 

 able insects, the life histories of which have not been as thor- 

 oughly studied as is desirable. The moths appear to be diurnal 

 in their habits, and may be found in vast numbers in the morn- 

 ing hours on bright days in their favorite haunts in the region of 

 the Rocky Mountains. I have found them particularly abundant 

 about Laramie Peak in Wyoming in the latter part of June and 

 July. They appear to frequent flowers in company with diurnal 

 lepidoptera, as. the various species of Argynnis, and they may 

 then be easily taken. Their flight is rapid. They are character- 

 istic of the country of the sage-brush, and the ranges of the 

 western sheep-herder. 



(l) Pseudohazis eglanterina Boisduval. 



Form nuttalli Strecker, Plate IX, Fig. 7, $ ; Plate XI, Fig. 5, 

 $ . (Nuttall's Sheep-moth.) 



Syn. shastaensis Behr; denudata Neumoegen. 



The two figures given on our plates show two forms of this 

 well-known insect. Whatever the amount of black or purple 

 upon the fore wings the specimens may always be distinguished 

 from others by the presence just beyond the discal spot of the 

 fore wings of a longitudinal dash of Indian yellow. This is 

 characteristic, and I have never failed to find it in a long series 

 of specimens, no matter how the other markings varied. 



(2) Pseudohazis hera Harris, Plate IX, Fig. 8, $ . (The 

 Hera Moth. ) 



Form pica Walker, Plate XI, Fig. 3, $ ; Fig. 4, ? . (The 

 Magpie Moth.) 



This extremely variable moth is represented by the typical 

 form in the figure given upon Plate IX, and in the figures given 

 upon Plate XI by two specimens showing the form, which is 



93 



