458 William T. M. Forbes 



41. 0. hemidesma Zeller. Cu, leaving cell three -fourths way out, deep red-brown, 

 with a slight pink iridescence. A short fragment of an oblique ante medial choco- 

 late-brown fascia on inner margin; a complete narrow median fascia, slightly 

 irregular on outer side, from middle of costa, the band narrowing and fading out 

 toward inner margin. Hind wing fuscous brown. 16 mm. [Euehromia Zeller). 



July. Larva webbing leaves and flower heads of Spiraea. 

 Maine to Pennsylvania and California. 



42. 0. hebesana Walker. Dull fuscous brown, somewhat mottled; the ground 

 with a slight purple tint, the bands perceptibly darker, and not iridescent, mixed 

 with some black scales. Base of the darker duller brown, its outer boundary 

 irregularly excurved; median fascia narrow at costa and especially at inner 

 margin; broad above the middle, where it extends out in two broad blunt teeth at 

 upper and lower sides of cell. With traces of gray striae outwardly and usually 

 a faint grayer subterminal patch; often with a suffused blackish area over 

 middle of costa. 9-16 mm. {Penthina fullerea Riley.) 



June to end of September. Larva on Tigridia, verbena, Antirrhinum, Stachys, 

 pitcher plant, and iris; doubtless a general feeder. Dwarf specimens of this 

 species have been determined as conditana Walsingham, which apparently is really 

 purely a western species. 



Maine to North Carolina and California. New York: Crosby (Yates County), 

 Ithaca, Nassau, New Windsor. 



43. 0. daeckeana Kearfott. Deep shining blue-gray, almost black; the jnarkings 

 a mixture of deep dull brown and black; so far as traceable as in 0. hebesana. 

 Hind wing blackish. 16 mm. 



June. Larva on pitcher plant. This may be a variant form of 0. hebesana, 

 which has been bred from the same food. 

 Southern New Jersey and Chicago, Illinois. 



44. 0. cyanana Murtfeldt. Brownish black, heavily scaled with shining deep 

 blue. Base largely blue, with groups of blue scales and striae before and beyond 

 middle of costa; a large patch near anal angle, more than half the width of the 

 wing, formed of two or three partly confluent blue spots or streaks; a few blue 

 striae at apex. Hind wing blackish, paler toward base in male. 15 mm. 



May to July. Larva on rose. 

 Quebec to Missouri and Pennsylvania. 



45. 0. agilana Clemens. Blackish, irregularly scaled with yellow-brown and a 

 little chocolate brown, leaving a vague darker shade at middle of costa, and an 

 oblique subterminal band resting on middle of outer margin. A vertical lead- 

 gray stria, perpendicular to costa, resting on anal angle and extending half way 

 to costa; also with some scattered lead-gray dots and striae on outer half of 

 wing. Fringe dark gray, with black basal line; hind wing blackish with pale 

 fringe, becoming pale on basal half. 10-12 mm. 



May to July. Larva not rare in stem of Impatiens. 



General. New York: Portage, Potter Swamp (Yates County), Ithaca. 



46. 0. auricapitana Walsingham. Similar to 0. agilana; head and collar con- 

 trasting ochre-brown; fore wing with rather more ochre scaling, especially at apex. 

 Lead-gray scaling coarser and sparser, the principal marks being oblique ante- 

 and postmedial costal bars, a broken bar across the apex, and the one at the 

 anal angle (which is heavier than in 0. agilana). No black line in fringe, but 

 with a contrasting series of alternating black and yellow terminal dots. 



June; August 1. 



New York and New Jersey. New York: Ithaca. 



47. 0. albiciliana Fernald. Crisply mottled with bright ochre yellow and black, 

 more coarsely than in the coruscana group, which it approaches. Numerous 

 coarse scattered blue spots, partly defined with yellow; two oblique streaks toward 

 apex on costal half of wing, tending to slightly overlap two parallel erect streaks 



