. Elementary entomology . '^ :r> antennae. The females of our common species, of which the white-marked tussock-moth i^Hcincrocampa leucostigma) is a good example, are wingless and look more like hairy grubs or fat spiders than moths. These wingless females pair as soon as they emerge from the cocoons, and then lay their eggs upon them and die. The eggs of this species are usually found on the trunks of trees, and are covered with a white substance looking like frosting. The caterpillar is ' about one and one half inches long, with a pair of black pencils of hairs projecting a half inch for
. Elementary entomology . '^ :r> antennae. The females of our common species, of which the white-marked tussock-moth i^Hcincrocampa leucostigma) is a good example, are wingless and look more like hairy grubs or fat spiders than moths. These wingless females pair as soon as they emerge from the cocoons, and then lay their eggs upon them and die. The eggs of this species are usually found on the trunks of trees, and are covered with a white substance looking like frosting. The caterpillar is ' about one and one half inches long, with a pair of black pencils of hairs projecting a half inch forward on either side of the head, and a single pencil of similar length extend- ing from the tip of the abdomen. The head and a small glandular dot on the center of the sixth and seventh abdom- «. - «.T7«> ' ⢠inal segments are ^^E Vf bright red, the body ^^â ^K -^ is yellow banded with ^^^^^ black, and the first four abdominal seg- ments bear brushlike tufts of white hairs. This species often becomes a serious pest of shade and fruit trees, while nearly related species are common but not so injurious. To this family belong the gypsy moth {Porthctria dispar) and the brown- tail moth {Ejiproctis chryson'hoed), both of which have been imported from Europe into New England, where they have done enormous damage to trees of all kinds. The male gypsy moth is tawny brown, with black markings, while the female is much larger, and is white, with wavy blackish lines across the wings. The female is unable to use her wings for flight, and lays her eggs on â h Fig. 321. Male and female gypsy moths size) (Natural (After Forbush and Fernald)
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Keywords: ., bookcentury1900, bookdecade1, booksubjectentomology, bookyear1912
