LEPIDOPTERA HETEROCERA. 975 



the costa, slightly hooked and acuminated at the tips, oblique 

 and undulating along the exterior border ; discal areolet intersected 

 by a distinct vein ; three inferior veins ; first and second approxi- 

 mate at the base ; third remote. Male. — Antenna? deeply pec- 

 tinated, as long as the thorax. Abdomen extending for more than 

 one-third of its length beyond the hind wings, with two long 

 and stout tufts at its tip. Female. — Antennae moderately pecti- 

 nated, shorter than the thorax. Abdomen extending for less than 

 one-third of its length beyond the hind wings, acuminated at 

 the tip. 



Resembles the genus Dryocampa, 



1. Perophora Melsheimerii. 



Tata pallide rubro-cinerea vel isabellina ; alee punctis minutis ni- 

 gris undique irroratcc, fascia lineari fusca communi obliqua 

 ante anticarum apicem retrorsum angulata, punctoque majore 

 nigricante mediano signatce. 



Saccophora Melsheimeri, Harris. Doubleday, Entomologist, 101. 

 Perophora Melsheimerii, Harris, Ins. inj. to Vegetat. Ed. i. 299 ; 



Ed. ii. 319. Newman. Trans. Ent. Soc. Lond. New Series, 



iii. 1. 



Massachusetts. Virginia. 



2. Perophora Batesii. 



Tota testacea ; alee punciis irroratce, fascia lineari saturatiore 

 communi obliqua ante apicarum apicem retrorsum angulata, 

 lunulaque aperta centrali signatm. 



Perophora Batesii, Newman, Trans. Ent. Soc. Lond. New Series, 

 iii. 1. 



a — c. Santarem. From Mr. Bates' collection. 



d—f. (Pupa-case). Santarem. From Mr. Bates' collection. 



3. Perophora hamata. 



Mas. Ferruginea, albido conspersa ; antennce nigricantes ; alee 

 • fascia obliqua nigricante cinereo maryinata, anticce hamata, 

 striga obliqua antica maculaque discali cinereis. 



Male. Ferruginous, with some whitish black-tipped flecks, 

 which are most prevaleut on the under side of the hind wings. 

 Antennae blackish. Wings with a blackish band, which extends 



