156 THE COMMONER BUTTERFLIES. 



broods in the Southern States, and this may be the case in 

 the southern parts of our district. The butterflies make 

 their appearance with us early in June, sometimes late in 

 May, and continue to emerge from the chrysalis throughout 

 June and fly throughout July and often into August. 

 The eggs, which are domed, heavily ribbed and cross-lined, 

 and of a grass-green color, are laid singly, from the middle 

 of June on, upon the upper surface of leaves, and hatch in 

 about four days. The caterpillars feed uj)on a number of 

 different plants of the Pulse family (proper), and very 

 likely will eat any of them, but they seem to prefer locusts 

 and especially the rose-acacia; during its first two stages 

 the caterpillar makes a nest by nearly cutting a rounded 

 piece out of a leaf, folding it over and binding the edges 

 to the leaf at a few points with silken cords so that it is 

 open at the sides; when larger it connects two leaves or 

 sometimes more in a similar manner, and often changes to 

 chrysalis therein, first making the nest more secure by a 

 silken interior lining; at other times it makes a cocoon of 

 dead leaves or bits of rotten wood entangled with its silk. 



50. GrENUs Thorybes. 



THORYBES PYLADES— THE NORTHERN CLOUDY-WING. 



(Eudamus pylades.) 



Butterfly. — Upper surface of wings dark glistening brown, the 

 fore wings with a few very small, slender, mostly transverse, 

 fenestrate spots, three just beyond the middle in a triangle, and 

 two sets on the costal margin, one at the middle, the other half 

 way from there to the tip. Under surface as above, but with 

 pale clouds next the margin, and the hind wings crossed by a 

 pair of dark-edged, light-brown, narrow, tremulous bands. Ex- 

 panse li-lf inches. 



Caterpillar. — Head black. Body naked, briefly pilose, rather 

 dark green, with a slender darker dorsal stripe, a dull salmon 

 lateral stripe and the infrastigmatal fold pale salmon ; first tho- 



