418 Annals Entomological Society of America [Vol. IV, 



usually in the spotted forms and is rather rare; the common elytral 

 basal spot so characteristic of the genus is indistinct or absent 



Egg: unknown. 



Larva-: (Plate XXVIII, fig. 7). First stage not seen. 



Second or third stage: 4.5 mm. long, .6 mm. wide in the middle, dark 

 1 m iwn above, pale below, Hairs very long and pointed, head jet black, 

 first thoracic segment pale. 



Fourth stage: 5-6 mm. long, 0.7-0.8 mm. wide in middle, very dark 

 brown above except first thoracic segment and interrupted pale lines; 

 paler on sides and below. A central dorsal row of pale spots occurs 

 between the tubercles from the first abdominal to the anal segment ; 

 only faintly indicated on the thoracic segments. Tubercles of the ab- 

 dominal dorsal segments in two rows, the first containing one tubercle 

 on each side of the dorsal median line, the second having four pairs of 

 tubercles, these are jet black and between them there are always pale 

 spots; first lateral enlargements on each segment with a pair of black 

 tubercles, second enlargements each with a single tubercle; anal segment 

 on each side with a pair of tubercles in front of the second and third 

 tubercles of the second row; last segment with the four tubercles of the 

 second row on each side arranged in a diamond, more elongate laterally. 

 Each tubercles is set with a long slender dark hair, none of the hairs 

 appearing blunt or truncate. On the thorax the tubercles are more 

 numerous on the first segment but on the others arranged as on the 

 abdominal segment but without evident pale spots between. (De- 

 scribed from alcoholic specimens loaned by Dr. J. B. Smith, collected in 

 June on Polygonum at Trenton, N. J.) The colors of the living larvas 

 may be somewhat different from those of alcoholic specimens and the 

 arrangement of the thoracic tubercles, especially those on the first 

 segment could be better understood from non-shrunken specimen^. 



Cocoon: (Plate XXVIII, fig. 5). 15 mm. diameter, coarsely 

 reticulate, of brown coarse threads, usually almost globular. (Speci- 

 mens from Trenton, X. ]., Indian Territory, Columbus, Ohio and Pej 

 rim, 111.) 



Pupa: (Plate XXVIII, fig .6) 4 mm. long by 1.8 mm. wide across 

 the base of the wing-pads. Anterior line of prothoracic hairs close bo 

 margin, first three pairs in front, fourth and fifth on side; the two central 

 pairs are on a line, almost with the fourth and fifth anterior and form a 

 square; three posterior pairs on a curved line near the hind margin about 

 equidistant from each other and the inner one the same distance from 

 the posterior hair of the central pairs; all of these hairs Aery long and 

 slender; hairs on the head and beak not so long; transverse rows of 

 seta? on the dorsal abdominal segments and rows of hairs on the terminal 

 segment. Pupa dark on head, base of wing pads, parts of legs, meta- 

 thorax above, and on parts of abdomen. (Described from one specimen 

 from Dr. J. B. Smith, same lot as larva?.) The coloration of the speci- 

 men appears to have been affected by the alcohol in which it is preserved. 

 Some of the segments arc somewhat shrunken, especially on the 

 abdomen. 



