LEPIDOPTERA HETEROCERA 147 



ceous line ; a purplish discal mark. Fore wings with the band 

 much dilated and forming a rounded angle on the outer side. Hind 

 wings with the oehraceous part continued to the base of the wing. 

 Length of the body 4 — 5 lines ; of the wings 10 — 12 lines. 



a, b. Nova Scotia. From Lieut. Eedman's collection. 



Genus 23. NEMATGCAMPA. 



Corpus gracile. Frons plana, non producta. Palpi breves, 

 graciles, caput vix superantes ; articulus 3us distinctus, acutus. 

 Antennae breves, simplices, maris robustae. Oviductus exsertus. 

 Tibia? posticae valde dilatatae, calcari uno incrassato. Alae integrae, 

 fimbria brevi, margine exteriore subflexo ; anticae apice rectangu- 

 latae. 



Microgonia, p. Herr.-Sch. 

 Nematocampa, Guen. Phal. i. 120. 



Body slender. Front flat, not prominent. Palpi short, slender, 

 hardly extending beyond the head ; third joint distinct, acuie. An- 

 tennae rather short, simple in both sexes, thickest in the male. 

 Female with a prominent oviduct. Hind tibiae much dilated, with 

 one of the fore pair of spurs much incrassated. Wings entire ; 

 fringe short; exterior border slightly bent. Fore wings rectangular 

 at the tips. 



1. Nematocampa resistaria. 



Mas. Flavescente-testacea ; alee nigro conspersce, linea interiore 

 arcuata lineisque duabus exterioribus subcontiyuis fuscis, 2a 

 undulata cinereo extus late marginata, margine exteriore sub- 

 angulato ; anticce vix acuta. 



Microgonia vestitaria, Herr.-Sch. Lep. Exot. f. 368. 

 Microgonia resistaria, Herr.-Sch. Lep. Exot. 41. 



Brazil. 



a—c. New York. Presented by E. Doubleday, Esq. 



2. Nematocampa varicata. 



Mas Pallide ochracea ; tibia postica subincrassatce ; alee dense 

 ochraceo conspersae, lunula discali lineisque duabus saturate 

 rufis, spatio marginali purpureo-rufescente ; anticce linea la 

 arcuata, 2a vix arcuata strigam ad costam emittente, spatio 

 marginali anlice ochraceo ; posticae linea la subobsoleta. 



o 2 



