Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . on the side of each moth (Fig. 232, and larva) Fi- -*-• is reddish In-own, with two oblique, dirty white lines on thefore wings. It expands from an inch and a quarter to an inchand a half. The Forest Tent caterpillar, C. dissiria Hiibner(C. sylvatica Harris) differs in the apex of the fore wingsbeing much longer, with two transverse rust brown, nearlystraight, parallel lines. It is sometimes destructive to theapple and oak trees. The Hep
Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . on the side of each moth (Fig. 232, and larva) Fi- -*-• is reddish In-own, with two oblique, dirty white lines on thefore wings. It expands from an inch and a quarter to an inchand a half. The Forest Tent caterpillar, C. dissiria Hiibner(C. sylvatica Harris) differs in the apex of the fore wingsbeing much longer, with two transverse rust brown, nearlystraight, parallel lines. It is sometimes destructive to theapple and oak trees. The Hepiuli. are a group of boring moths, the larva? boringin the stems of plants or in trees. The wings are narrow, bothpairs being very equal in size, and show a tendency to recur tothe net-veined style of venation of the Neuroptera. Xyleutes isa large moth, with a stout vein passing through the middle ofthe discal space, and the short antennas have two rows of shortteeth on the under side. X. robinim Peck is gray, with irregu-lar black lines and dots on the wings, and a black line on theinside of the shoulder tippets. The hind wings of the male. o()2 LEPIDOPTEKA. (X. crepera Harris) are distinctly triangular and yellow on theouter half. The larva is nearly three inches long, is reddishabove and covered with sparse long hairs. It bores in variousdirections through the red oak and locust, and spins a densecocoon. The pupa is much elongated, with the suture betweenthe segments well marked, and the head and thorax rather is a gigantic moth, with more falcate wings thanin Hepialus. S. argenteomaculata Harris expands nearlythree inches, and is ashy gray, variegated with dusk} cloudsand bands, with a small, triangular, silvery spot and rounddot near the base of the fore wings. Hepialus is smaller, witha larger head and straighter wings. H. humuU Linn, isinjurious to the hop vine in Europe. Our most common spe-cies, H. musteUnus Pack., is sable brown, with slight silveryl
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishe, booksubjectinsects
