84 BUTTERFLIES OF MAINE. 
The upper side of the females is black, with the base of 
the fore wings and hind margin for two-thirds of its length, 
and the hind wings, except the costa, dark metallic blue. 
Under side, greenish gray. In addition to the five spots on 
the under side of the fore wings in the males, the females 
have two blackish, rather indistinct spots below the others, 
nearer the base. Thorax and abdomen, black above and 
white beneath. Legs and antenne, black, with white rings. 
Palpi white. Club of antenne, black, red at tip. 
The early stages and food plant of this very rare species 
are unknown. 
The perfect insect has been taken in Orono on the 18th of 
May. 
46. THecua tirus, F. 
Thec’-la ti’-tus. 
Expanse of wings, from an inch and a quarter to an inch 
and a half. 
Hind wings without tails or teeth, but the anal angle pro- 
jects slightly. 
Upper side of the wings, dark brown, with a row of seven 
or eight orange colored spots along the outer margin from the 
anal angle. These are sometimes wanting. Under side of 
the wings, grayish brown, with « row of small black spots 
touched on the outer side with vermillion, along the outer 
margin, within which is another row of larger black spots 
encircled with white. Corresponding rows cross the hind 
wings, but the terminal row has the vermillion spots increased 
in size; und there are two white edged black dashes placed 
end to end across the end of the cell. Body above, dark 
brown; beneath, clothed with whitish hairs. 
This species is said to feed on the plum, cherry and oak. 
The mature larva is .7 of an inch long, elliptical, and flat 
on the lower side, of a dull green color with a yellowish tint, 
especially on the forward segments, and it is thickly covered 
with very short, brown hairs. 
