THE NYMPHS 



The Baltimore 



Euphydryas phaeton (Eu-phyd'ry-as pha'e-ton) 



Plate XXII, Fig. ii 



The wings above are black, with an outer marginal row of 

 dark reddish-orange spots, and two parallel rows of very pale 

 yellow spots ; on the fore wings a third row is more or less 

 represented. The wings expand two inches or more. 



Caterpillar. — Length one inch. In the hibernating 

 stage when they are usually found, the head and first two 

 segments are shining black and the last three black with two 

 orange bands around each. All the other segments have a 

 ground color of orange with various narrow transverse lines 

 of black. There are three rows of black spiny tubercles along 

 each side and one row down the middle of the back. There 

 are also a pair of smaller spines above each proleg. At this 

 stage the caterpillar is three-eighths inch long. Its colors 

 when fully grown are practically the same as described above. 

 It is gregarious in its habits. 



Food-plants. — The snakehead and other plants. 



This handsome, striking butterfly looks as if it 

 were done in Russian embroidery. The outer 

 border of orange and the regular rows of angular 

 yellowish white spots set against the black back- 

 ground eive one the impression of conventional 

 needlework, instead of unconventional nature. 

 Especially is this true of the lower surface of 

 the wings where the pattern is the more elaborate. 

 In its habits the butterfly is very local, remain- 



125 



