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Elementary entomology . elementaryentomo00sand Year: [c1912] marked with six black lines and with a black dot on the side of each segment. The currant span-worm (Diastictis ribcaria) is a yellow, black- spotted looper, which often appears in such numbers on cur- rant and gooseberry bushes as to defoliate them very quickly. The moths are pale yellow, marked with irregular, dusky spots. Most of the moths of the subfamily Geometrinae are of a green color with the wings barred more or less distinctly with whitish lines. The larvae of one of these, the raspberry geometer (Synchlora glait- can'a),
Elementary entomology . elementaryentomo00sand Year: [c1912] marked with six black lines and with a black dot on the side of each segment. The currant span-worm (Diastictis ribcaria) is a yellow, black- spotted looper, which often appears in such numbers on cur- rant and gooseberry bushes as to defoliate them very quickly. The moths are pale yellow, marked with irregular, dusky spots. Most of the moths of the subfamily Geometrinae are of a green color with the wings barred more or less distinctly with whitish lines. The larvae of one of these, the raspberry geometer (Synchlora glait- can'a), feeds on the fruit and foliage of the raspberry, cover- ing itself with bits of vegetable matter, thus masking itself beneath what is apparently a little heap of rubbish. The owlet-moths (Noctuidae) are by far the largest family of the order, including some twenty-one hundred species, ' three times as many as there •/ are North American species of birds,' and form the great bulk of the moths commonly taken by collectors. As their name FIG. 311. Adult female moth and egg mass and winged male of the fall cankerworm. (Natural size) (After Britton) indicates, they fly by night (as do all other moths, for that matter) and are frequently attracted to lights, Canker- .,, ,, r -, i worms in charac- bemg the common millers of popular parlance. teristic attitudes. They are not readily distinguished from nearly (Natural size) related families, nor are the species recognizable (After Bailey)
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