694 THE BUTTERFLIES OF NEW ENGLAND. 



pale below (some with a few purplish spots) and inky black above. Height, .8 mm. ; 

 greatest breadth, .6 mm. ; breadth at summit, .27 mm. 



Caterpillar. First stage. Head shining piceous with a very few rather short pale 

 hairs ; ocelli black ; antennae pale obscured with fuscous ; mouth parts dark fus- 

 cous. Body most delicately shagreened; the thoracic segments, particularly the first, 

 and also the dorsum of the first, second, third, eighth and ninth abdominal segments 

 obscure fuscous; rest of the body dull luteous, yellowish beneath; warts dark 

 fuscous ; hairs straight or curving, shining, pale. Legs pale obscured with fuscous ; pro- 

 legs yellowish, the terminal pair blackish fuscous at base. Length of whole body, 

 1.52 mm.; breadth of body, .28 mm.; length of hairs, .19 mm.; breadth of head, 

 .38 mm. 



Second stage. Head shining piceous, with a few rather short, glistening hairs. Body 

 pretty uniform dull luteous, the thoracic and terminal abdominal segments a little 

 dusky; first thoracic segment with a dorsal, anterior, black shield from which the 

 long hairs, arching over the head, take their rise. On some individuals faint indica- 

 tions of a dusky dorsal line can be seen. Spines black, furnished with several moder- 

 ately long, straight hairs and terminating in a long, curved hair. Spiracles fuscous. 

 Legs black; prolegs of the color of the body tipped with blackish fuscous. Length, 

 5.5 mm. ; breadth, 1 mm. 



The diflerences in the subsequent stages (79 : 29, 30) are so triiling as not to merit a 

 distinct description. 



Last stage (75: 11). Head (79 : 31) shining piceous, the sides and summit fur- 

 nished with numerous minute black warts bearing black hairs. Antennae and mouth- 

 parts black, the first joint of the former dirty white. Body deep orange or dull 

 ferruginous brown tinged with orange, striped transversely with black; first and 

 second and anterior half of the third thoracic segments black ; each of the abdominal 

 segments is margined at either end with black, and has a narrow, submarginal black 

 band at its posterior extremity, connected above with the marginal line; the latero- 

 dorsal spines are connected by a black line curving around behind the little advanced 

 dorsal spine ; the eighth and ninth abdominal segments are velvety black, the terminal 

 pitchy black; there is a slender, black, iufrastigmatal line; the body beneath is orange 

 with a rather broad, black, ventral line and other black markings and a transverse 

 median row of rather long, coarse hairs ; each transverse orange stripe bears a row of 

 slightly curving black hairs. Spines shining deep bluish black, the needles black. 

 Spiracles black. Legs black, the first joint dirty white ; prolegs dark orange, black- 

 ish externally, clothed with black hairs. Length, 25 mm. ; breadth, 4.5 mm. ; length of 

 spines, 2 mm. ; breadth of head, 2.1 mm. 



Chrysalis (84: 7, 15, 16). Very pale bluish white, marked with pure velvety black 

 and pale orange ; ocellar ribbon black, enclosing an orange space between it and the 

 antennae, marked with a few black punctures ; antennae alternately black and white, 

 the club black; vertex with two orange warts set outside of a black spot which 

 passes midway down either side to the tongue; tongue black; legs orange, marked 

 with black and with spots of brownish or burnt yellow ; wings with the basal prom- 

 inence orange, tipped with black and surrounded by the same, an orange spot at the 

 base posteriorly, a series of irregular, black, orange bordered dashes and spots across 

 the middle of the wing, the basal half of the inferior margin orange, a black dash at 

 the tip and a series of black dots at the nervure tips. Thorax with a delicate black 

 dorsal line; prothorax with a pair of central, subdorsal, black dots and along its pos- 

 terior margin four equidistant black spots, the inner pair on the anterior margin of 

 the mesothorax; the latter with a pair of central, subdorsal, black dots, behind which 

 are two narrow, divergent, black dashes. Abdomen with a subdorsal series of trans- 

 verse, slightly oblique, black dashes centrally placed ; posterior to them and a little 

 outside, a series of straight, transverse, black dashes ; on the second and succeeding 

 segments there is also a lateral row of circular black spots two on a segment, one 

 placed anteriorly, the other posteriorly; behind the suprastigmatal warts there are on 

 each segment two or three small, sometimes confluent, black spots; there is also a 



