80 BUTTERFLIES OF MAINE. 
and overlaid with numerous purplish scales. The outer half 
is lighter, especially inside of the row of points. 
This butterfly has been taken in Orono from the middle of 
May till the middle of June. 
The early stages and food plant are unknown. 
42. THECLA IRUS; variety, ARSACE, Bd-Lec. 
Thec'-la 7 -rus, ar’ -S-Ce. 
Expanse of wings, from an inch to an inch and a quarter. 
Upper side of the wings, dark brown with’ greenish 
reflections. Under side of the wings blackish brown on the 
basal half and lighter beyond. The outer part of the wing is 
overlaid more or less with white seales. The tooth of the 
hind wing, next outside of the anal angle, curves outward, 
and there is a more or less prominent black spot within the 
margin between the base of the tooth mentioned and the one 
next outside. 
The stigma on the fore wings of the males is three times as 
long as wide. 
43. THECLA HENRICI, Gr-Rob. 
Thec-la hen’ -ri-ci. 
Expanse of wings, from seven-eighths of an inch to one 
inch and an eighth. 
This species very closely resembles Thecla trus var. arsace 
in form and color as well as markings but differs in having 
the outer part of the hind wings somewhat rust colored, the 
teeth of the hind wing shorter and the first one beyond the 
anal angle, not curving outward, and in wanting the black 
spot on the under side of the hind wings between the bases 
of the first two teeth. The stigma on the fore wings of the 
males is shorter and wider than in arsace, being only twice 
