LEPIDOPTERA. 211 



nearly filiiorm, hooked at the extremity ; the hind wings 

 of the insect, when at rest, reposing in a nearly horizontal 

 position ; the fore wings nearly erect : flight diurnal, brisk 

 and bustling. Hesperia, Thymele. 



Butterflies or Papilionites. Larva sometimes naked, 

 but generally covered with down, hair, or spines : with ten 

 prehensile legs. Pupa naked ; mostly angulated, always 

 attached by the tail ; changes in the air. Imago with cla- 

 vated antennae not hooked ; all the wings erect, and meet- 

 ing above the back when at rest. Polyommatus, Lyccena, 

 Thecla, Amaryssus, Colias, Pontia, Apatura, represented 

 at page 85, Limenitis, Hipparchia, Vanessa, represented 

 at pages 112 and 113, Argynnis. 



Loopers, slender bodies or Geometrites. Larva naked, 

 slender, and very elongate, with four prehensile feet : in 

 consequence of the length of body with- 

 out feet, its back is arched in walking. 

 Pupa smooth, rounded ; situation of 

 change, various. Imago with anteiince 

 tapering to a point; in the males often 

 highly pectinated: wings ample, ex- Looper Caterpillar 

 paneled ; body very slender ; flight in 

 the evening, silent, feathery. Geometra. 



Half-loopers or Phytometrites. Larva naked, elongate, 

 less slender than the preceding, with six prehensile feet ; 

 in walking its back is arched, but not so decidedly as in 

 the preceding. Pupa smooth, rather pointed at the tail ; 

 changes in a slight web. Imago with filiform antenna ; 

 wings deflexed ; body moderately stout ; beautifully co- 

 loured ; often with brilliant metallic markings ; flight at all 

 hours ; in the hottest sunshine, and at midnight. Plusia, 

 Ophiusa, Heliothis, Acontia, Erastria, Phytometra. 



Full-bodied moths or Noctuites. Larva generally naked, 

 cylindrical, robust, with ten prehensile feet : rolls in a ring 



P2 



