LEPIDOPTERA HETEROCERA. 399 



2. ISOPTERYX MAGNALIS. 



Mas et foem. Pallide ochraceo-fiava ; alee linea marginali fusca, 

 fimbria interlineata ; anticce linea axteriore e fascia incequali 

 albafusco marginata postice dilatata, reniformi magna quad- 

 rata fusca disco cinereo, orbiculari obscura non bene determi- 

 nata lineam interiorem nigricantem emittente, costa nigro 

 punctata ; posticce fasciis duabus incequalibus latis albis. 



Isopteryx magnalis, Guen. Delt. et Pyral. 230, 201. 



North America. 



3. Isopteryx stenialis. 



Foem. Pallide ochraceo-Jlava ; alee nigricante varice, linea mar- 

 ginali atra^ fimbria interlineata ; anticce linea interiore, orbi- 

 culari annuloque posteriore contiguis, macula magna nigricante 

 reniformem arcuatam fiavam includente, linea exteriore fiava 

 nigricante marginata lineolam anticam nigram includente ; 

 posticce linea annulisque duobus nigricantibus, dimidio exte- 

 riore nigricante lineata. 



Isopteryx stenialis, Guen. Delt. et Pyral. 231, 203. 



Georgia. 



4. Isopteryx? obliteralis. 



Fcem. Cinereo-fusca ; palpi oblique ascendentes^ subarcuati ; 

 articulus 3us lanceolatus, 2i dimidio brevior ; alee fasciis 

 duabus subochraceis valde diffusis, guttis marginalibus nigris ; 

 anticce apice rotundatce, linea marginali e lunulis albidis, 

 reniformi ochracea maculaque contigua alba subquadratis. 



Female. Cinereous-brown, whitish cinereous beneath. Palpi 

 obliquely ascending, slightly curved ; third joint lanceolate, less 

 than half the length of the second. Antennae slender. Wings 

 with two very diffuse dull ochraceous bands ; marginal dots black ; 

 fringe cinereous. Fore wings rounded at the tips, moderately 

 oblique along the exterior border ; marginal line whitish, composed 

 of irregular lunules ; reniform mark ochraceous, transversely sub- 

 quadrate, adjoining an exterior white mark of like shape. Length 

 of the body 3 lines ; of the wings 7 lines. 



a. United States. Presented by E. Doubleday, Esq. 



2 M 



