IV. INSEGfA : HEXAPODA, LEPIDOPTEBA. 495 



Sub Order III. NOCTUINA. Owlet moths ; with short bodies ; fore 

 ■wmgs usually gray and ornamented by two spots and zigzag lines which 



Fig. bdb,~Lcuca)iia uniptcnctata, army-worm and moth. (From Riley.) 



at rest cover the frequently (as in Catocala*) brightly colored hind wings. 

 1800 species in United States. IlypenaJiumuli* hop worm ; Aletia argil- 

 lacea* cotton worm ; Leucania unipunctata* army worm ; cut worms. 



Sub Order IV. BOMBYCINA, silk worms. Body large, wooly, usually 

 broad dull-colored wings ; occasionally lacking in the females ; proboscis 

 frequently rudimentary. Antennas long, pectinate ; larvae hairy, with 

 well-developed spinning powers. Most important are the true silk worms 

 (Bombyx mori*), natives of China, while others, like Telea polyphemus* 

 furnish silk of value. Still others cause great damage to forest trees, 

 among them the tent caterpillars (C/tsJoca»!^3a*) and the imported gipsy 

 moth (kneria dispar (fig. 73). 



Sub Order V. SPHINGINA. Body long, stout ; fore wings long, slender, 

 hind wings shorter; proboscis very long : antenute sliort ; larvae with a 



■Everyx riiyron. (From Riley.) 



caudal spine. Pldegethontius cdeim* tomato worm ; P. Carolina* tobacco 

 worm. Considerably different are the Sesiid.e, or 'clear wings,' wiiich 

 resemble bees and wasps. 



Sub Order VI. RHOPALOCERA, butterflies. Body slender ; wings 

 held vertically when at rest, proboscis long ; antennfe clubbed at the tip ; 



