Indian forest insects of economic importance Coleoptera . n miny cases, notably in the case of the m jre dangerous ofthe wood- and bark-boring beetles, but a short period, often forty-eight tosixty hours or even less, elapses between the deposition of tin- eg- andthe hatching out of the grub from it. We thus see that even the appearance of a particular species orseveral species at the office or dinner-table may, if taken advantage of andprovided the specimen is kept and its identification securc-d, lead t informa-tion of the highest importance to the forester being placed upon record. Similar
Indian forest insects of economic importance Coleoptera . n miny cases, notably in the case of the m jre dangerous ofthe wood- and bark-boring beetles, but a short period, often forty-eight tosixty hours or even less, elapses between the deposition of tin- eg- andthe hatching out of the grub from it. We thus see that even the appearance of a particular species orseveral species at the office or dinner-table may, if taken advantage of andprovided the specimen is kept and its identification securc-d, lead t informa-tion of the highest importance to the forester being placed upon record. Similar observations may be made whilst engaged in executivework in the forest. An insect which makes its presence note\in a locality owing to its abundance or for any other reason once secured; the date of collection, locality, and clas:with species of trees it was frequenting or appeared to being, should be at once noted down, and every effort ma<le toensure the identification of the species. It is almost imp*. for 24 INDIAN FOREST INSECTS. FlG. 15.—Portion of stem of a Rhododendron, showing numerous larvalgalleries of a buprestid in the outer sapwood. Himalaya. the executiveofficer to gaugethe vast im-portance anote recordedin such amanner mayhave in thefuture, provi-ded it has beensent for recordto the expertin charge ofthis particularbranch of fo-rest work. Itmay perhapsprove the con-necting linkthe latter hasbeen seekingfor severalyears, the linkwhich piecestogether awhole chain ofnotes and ob-servationswaiting thisone importantpoint to com-plete it. Ithas been oftensaid that thereis little use inrecording suchnotes or incollecting theinsects, sincevery often noidentificationof the insectcan be remarkhas in many ON THE LIFE HISTORIES OF FOREST INSECTS 25 instances proved all too true. But it must be remembered that thestudy of the insect pests of the Indian forests is still in the pioneerstage. Some considerable collections of forest insects—minute
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1914
