170 



Harr. About bushes, in shady places; not common;: 

 early June and late July. 



55. LIBYTHEA BACHMANII Kirtl. A single specimen of this 

 is preserved in Harris' Cabinet marked with his own 

 handwriting " in garden, June 24." 



56. HETEROPTERUS MARGINATUS Harr. Low meadows ; 

 abundant ; July, August. 



5T. NISONIADES JUVENALIS Westw. Thanaos Juvenalis 

 Harr. Meadows ; quite rare, more abundant southward- 

 ly ; April, May, August. 



58. NISONIADES PERSIUS nov. sp. This species is spoken of 

 by Harris as a local variety of N. Juvenalis, but it is a dis- 

 tinct species ; the distinctions mentioned by Harris in the 

 spots on the wings are not persistent,butit differs from N. 

 Juvenalis in its smaller size, and in the fact that the male and 

 female are exactly alike in the markings, while in N. Ju- 

 venalis, the female differs from the male in having very 

 much larger spots and in the marked ashy-grey tints of 

 the apical half of both primaries and secondaries above, 

 differing so much as readily to be taken for a distinct 

 species. N. Persius has exactly the general appearance 

 in coloration of the male of N. Juvenalis ; the distinction 

 of male and female is marked in Abbott's figures. The 

 description of larva and chrysalis in Harris' Insects apply 

 to this insect and not to N. Juvenalis, as specimens in his- 

 cabinet show. Meadows ; somewhat common ; early 

 August. 



59. NISONIADES BRIZO Westw. Tlianaos Brizo Harr. 

 Meadows ; rare ; May, July. 



60. NISONIADES CATULLUS Westw. Yery rare, found only 

 in southern portions. 



61. EUDAMUS TITYRUS Boisd. and Lee. About gardens ; 

 not often abundant ; June, July ; larva feeds on the lo- 

 cust. 



62. EUDAMUS LYCIDAS Boisd. and Lee. I have seen but a 

 single specimen, obtained by Mr. Plympton in Waltham, 

 Mass., on the flowers of Phlox. 



63. EUDAMUS BATHYLLUS Boisd. and Lee. Fields ; abund- 

 ant ; June, July. 



64. HESPERIA METACOMET Harr. Fields ; somewhat rare ; 

 July. 



