Fifth report of the United States Entomological Commission, being a revised and enlarged edition of Bulletin no7, on insects injurious to forest and shade trees . grown caterpillarsare abundant by the first week of June. The species has been identi-fied for me by Professor Fernald. It was described from Kentuckyby Mr. Chambers, but the larva and food-plant have been hitherto un-known. When about to pupate it spins a small, thin, delicate cocoon, being atubular case of silk covered with bits of the scales of the spruce or firbuds. It is placed next to the shoot in the debris made by the larva a
Fifth report of the United States Entomological Commission, being a revised and enlarged edition of Bulletin no7, on insects injurious to forest and shade trees . grown caterpillarsare abundant by the first week of June. The species has been identi-fied for me by Professor Fernald. It was described from Kentuckyby Mr. Chambers, but the larva and food-plant have been hitherto un-known. When about to pupate it spins a small, thin, delicate cocoon, being atubular case of silk covered with bits of the scales of the spruce or firbuds. It is placed next to the shoot in the debris made by the larva atthe base of the leaves. Length, 6^; diameter, 2^^ Larva.—Body cylindrical, of the usual form, reddish brown in color, and about6 to 7™ in length. Pupa.—Body rather thick, of the usual pale mahogany brown color, the antennaeand tips of the wings on the under side reaching to the middle of the fifth abdominalsegment. End of the abdomen full and rounded, with about ten unequal, irregularlysituated slender bristles, which are slightly curved at the end ; besides these thereare several fine bristles along the side of the body near the tip. Length, 5™.. SPRUCE WORMS. 851 Moth.—Head cream-white; antennae with the basal (second) joint white, beyondringed with white and black. Palpi white, first and second joint speckled withblack, second (longest) joint ocherous at the end ; third (last) joint with two blackrings of unequal size, the outer the longer; the tip white. Fore wings moderately-wide, oblong ovate. Ground color ocherous whitish gray ; costal region blackish,base black. A broad oblique baud proceeds from the costal edge to the middle of thesnbmedian space, ending in two white spots; there are some whitish scales on theouter edge of the band. Just before the middle of the wing is a broad irregular blackband, and beyond it in the submedian space a black spot. A third broad black bandcrosses the wing, ending on the hind margin and breaking up into three black spotson th
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