. A manual for the study of insects. Insects. LEPIDOPTERA. 321 The Salt-marsh Caterpillar, Estigmene acrcea (Es-tig-me'ne a-crae^a).—The popular name of this insect was given to it by Harris, and was suggested by the fact that the salt- marsh meadows about Boston were overrun and laid waste in his time by swarms of the larvae. But the name is mis- leading, as the species is widely distributed throughout the United States. The moth (Fig. 393) is white, marked with yellow and black. There are many black dots on the wings, a row of black spots on the back of the abdomen, another row ^^^-^.-E
. A manual for the study of insects. Insects. LEPIDOPTERA. 321 The Salt-marsh Caterpillar, Estigmene acrcea (Es-tig-me'ne a-crae^a).—The popular name of this insect was given to it by Harris, and was suggested by the fact that the salt- marsh meadows about Boston were overrun and laid waste in his time by swarms of the larvae. But the name is mis- leading, as the species is widely distributed throughout the United States. The moth (Fig. 393) is white, marked with yellow and black. There are many black dots on the wings, a row of black spots on the back of the abdomen, another row ^^^-^.-Estigmene acrcea. on the venter, and two rows on each side. The sexes differ greatly in the ground-color of the wings; In the female, this is white throughout; in the male, only the upper surface of the fore wings is white, the lower surface of the fore wings and the hind wings above and below being yellow. The num- ber and size of the black spots on the wings vary greatly. There are usually more submarginal spots on the hind wings than represented in our figure. The Fall Web-worm, Hyphantria ctmea (Hy-phan'tri-a cu^ne-a).—A very common sight in autumn in all parts of our country is large ugly webs enclosing branches of fruit or forest trees. These webs are especially common on apple and on ash. Each web is the residence of a colony of larvae which have hatched from a cluster of eggs, laid on a leaf by a snow-white moth. There is a variety of this moth in which the fore wings are thickly studded with dark brown spots. Every gradation exists between this form and those that are spotless. The species winters in the pupa state, and the moths emerge during May or June. The webs made by this insect should not be confounded with those made by the Apple-tree Tent-caterpillar. The webs of the Fall Web-worm are made in the autumn, and. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
