Indian forest insects of economic importance Coleoptera . pupal chamber hol-lowed out in the bark and sapwood I took adead weevil. The gallery in the bast amisapwood made by its larva is shown had felled and examined a number of deaddeodar and blue-pine saplings and small andlarge poles, which had died from some un-known cause, on either side of the upper partof the Catchment Area of the small mountaintorrent which flows from here into the RaviRiver. These trees had been killed by barkbeetles, chiefly Scolvtits major ;md Polygraphsmajor. In some cases, however, 1 found larvalgalleries o
Indian forest insects of economic importance Coleoptera . pupal chamber hol-lowed out in the bark and sapwood I took adead weevil. The gallery in the bast amisapwood made by its larva is shown had felled and examined a number of deaddeodar and blue-pine saplings and small andlarge poles, which had died from some un-known cause, on either side of the upper partof the Catchment Area of the small mountaintorrent which flows from here into the RaviRiver. These trees had been killed by barkbeetles, chiefly Scolvtits major ;md Polygraphsmajor. In some cases, however, 1 found larvalgalleries of this cryptorhynchid \uwil presentin some abundance in the bast and sapwoodof the blue pine. The round exit-holes inFIG. galleries of the thick bark showed that the beetles hadCrvptorhynchus raja in blue pine, already matured and left the trees.«, position of pupation. The smaller Observations seemed to indicate that gallery is incomplete. Chamba, ..... ... ,, r North-West Himalaya. (E. P. S.) the life history is very similar to that of. 438 FAMILY CURCULIONIDAE C. brandisi in the Finns longifolia. In view of the fact that this latterweevil is a pest of the first magnitude, the life history of this blue-pine andspruce insect, as also its abundance, requires to be carefully ascertained. Cryptorhynchus sp.* Habitat.—Tharrawaddy, Lower Burma; Katha, Upper Attacked.—Teak (Tectona grandis). Kadin Bilin Forest, Tharra-waddy ; Katha. Beetle.—Black, of usual cryptorhynchid shape, the elytra with prominent longitudinalstriae down them, and punctate. Length, 13 mm. Larva.—Whitish yellow, curved, corrugated, with a yellow-brown head. Specimen takenwas half-grown. Towards the end of January 1905 whilst in Tharrawaddy I cut out aspecimen of this weevil from its pupal chamber in the Life History. sapwood and bark of a teak-tree which had been felledin the thinnings made the previous year in the 1888 plantation. The beetle lays the eggs in the bark. The grub o
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1914
