AUGUST. 231 



Lepidoptera. Hepialid.e. 



HEPIALUS. 



Generic Distinctions. — AntenncB very short, sometimes slightly 

 serrated ; palpi aud maxillce both wanting. 



Hepialus sylvanus. Orange Swift. This species is 

 orange-colour, with three white-lines ; the upper wings also 

 variegated with chestnut-colour, and a small dusky spot on 

 the disc. 



Hepialus humuli. Ghost Moth, is pure satiny- white, 

 margined with yellow ; the female being entirely of that co- 

 lour, with streaks of brown on the anterior wings. In this 

 genus the female is unlike the male in colour and markings ; 

 the caterpillars feed on the roots of plants, and, previous 

 to their change, they bury themselves in an oval cell, com- 

 posed of grains of sand held together by silken threads ; the 

 eggs resemble grains of gunpowder. The H. humuli is some- 

 times found in June. All the species of this beautiful genus 

 are very local in their habits. 



Lepidoptera. Bombycid.e. 

 GASTEOPACHA. 

 Generic Bistinctions. — AntenncB sort, curved, and bipectiiiated 



