LEPIDOPTERA 87 



often striped and sometimes colored to imitate twigs or 

 stems where they rest, so that they appear, when stand- 

 ing straight out from the resting place, as is their habit, 

 like little spurs from the twigs. 



There are many species of the loopers and several are 

 distinctly injurious. The adults have slender bodies and 

 usually rather broad and very thin wings, the appearance 

 indicating delicacy and frailness quite different from the 

 more robust Noctuid-like forms in the preceding families. 

 Their colors are usually sober but not dark. The light 

 grays predominate but not a few are green. The fore- 

 wings are frequently scalloped. 



Important species are the Canker-worms,* injurious on 

 orchard and shade trees, and loopers which feed on cur- 

 rants, gooseberries, raspberries and many other plants and 

 quite frequently are named for the plants on which they 

 feed. 



Bagworms (Psychidce) are represented by one or two 

 common species only. The most common one of these is 

 the Evergreen Lagworm which feeds on apple, and on 

 junipers, maples, locusts, and many other shade trees. 

 The males are small, clear-winged moths which are seldom 

 seen. The insect will be identified by the bag which it 

 makes and in which the greater part of the life is spent. 

 The females never leave the bags but deposit their eggs 

 within them and die. Young larvae make small cone- 

 shaped bags, which they "wear" all the time, enlarging 

 them as they grow, finally attaching them to twigs and 

 pupating within them. The figure will enable the reader 

 to recognize the insect. This species is often seriously 

 injurious. A smaller species feeds on maples and is less 

 conspicuous and troublesome. 



* See page 311, Part II. 



