Indian forest insects of economic importance Coleoptera . in conjunction with Scolytn*major (see p. 568), a bark beetle which was also exceedingly plentiful. The longicorn had gradually increased in con-siderable numbers, and apparently with it one of its insect parasites,probably an ichneumon. I was unfortunately unable to find any ofthe flies, as they had all left the trees; but the greater proportion ofthe longicorn pupal chambers in the sapwood contained a small, white,elongate, narrow pupal case with vertical sides, which was evidently thepupating-chamber of a parasitic hymenopterous inse
Indian forest insects of economic importance Coleoptera . in conjunction with Scolytn*major (see p. 568), a bark beetle which was also exceedingly plentiful. The longicorn had gradually increased in con-siderable numbers, and apparently with it one of its insect parasites,probably an ichneumon. I was unfortunately unable to find any ofthe flies, as they had all left the trees; but the greater proportion ofthe longicorn pupal chambers in the sapwood contained a small, white,elongate, narrow pupal case with vertical sides, which was evidently thepupating-chamber of a parasitic hymenopterous insect. In e\vr\ instanceexamined these cases had a small holt; at one end, with a correspondinghole in the bark above it, through which the parasite on maturing hadescaped from the tree. It appeared therefore that tin: numbers of thelongicorn had been decimated this year by the parasite, its grub havinglived parasitically on or in the longicorn larva till it had reached full size,when the latter had died from exhaustion, and the parasitic grub 286 FAMILY CERAMBYCIDAE Tetropium sp. REFERENCE.—Mr. Gahan identifies this as a species of Tetropium near to the European fuscum, Fabr., butrequires further specimens to make certain of the identification. Habitat.—Deota, Tehri Garhwal, and Simla, North-West Attacked.—Spruce (Picea morindd). Deota,Simla. Beetle. — Length, 16 mm. Tetropium sp. $ Slightly longer and narrower than $. Thorax narrower and North-West Himalaya,shorter, head smaller ; elytra nar
Size: 1229px × 2033px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1914
