Indian forest insects of economic importance Coleoptera . Theantennae areof importance inthe classifica-tion of the order, as are also the COLEOPTERA—CHARACTERS, HABITS, CLASSIFICATION 57 m-ci various hard chitinous parts of the insect. Behind the head comes the prothorax, which is capable of a certain amount of movement of itself. It varies in shape—round, angular, square, trapezoidal, etc. The other parts of the thorax, the meso- and metathorax, are hidden neath the t ra and not visible above. mesothorax be-ely-arefromThei s small, the meta-thorax being verylarge in thewinged forms ofColeopt
Indian forest insects of economic importance Coleoptera . Theantennae areof importance inthe classifica-tion of the order, as are also the COLEOPTERA—CHARACTERS, HABITS, CLASSIFICATION 57 m-ci various hard chitinous parts of the insect. Behind the head comes the prothorax, which is capable of a certain amount of movement of itself. It varies in shape—round, angular, square, trapezoidal, etc. The other parts of the thorax, the meso- and metathorax, are hidden neath the t ra and not visible above. mesothorax be-ely-arefromThei s small, the meta-thorax being verylarge in thewinged forms ofColeoptera. Inthe figure the dif-ferent parts of thethorax and theother simpler por-tions of the ex-ternal surface arenamed. For fulldetails on the sub-ject the readershould consult atext-book on en-tomology. Theelytra whenclosed covernearly all themesothorax andthe whole ofthe metathorax,lower wings, andabdomen. Theupper portion ofthe mesothoraxmay be visible inthe shape of atriangular orsquare, etc.,shaped pieceknown as the w-oc sm. —H— tar! guL. -. eps IG. 29.—Longicorn beetle (AVA-. era). Ventral view, legs removedon one side, t, eye ; cxl a 8 coxae of front, middle, and ;-1 2 8 trochanter of ditto ; /f»il - femora of ditto ;tibiae of ditto; tar1 * 8 tarsi of ditto ; stl :i prosternum, in*sternum, metasternum ; />«-, trochanter of middle leg :epimera of prothorax, mesothorax, and metathorax ; **, epister-num of mesothorax ; eps*, episternum of :—e, eye ; fr, front; , frontal suture ; ad, ante cl>c/, clypeus; //>, labrum or up|x-r lip; W, of head enlarged :—£nl< gula ; .j,v;/, gena ;sm, sub-mentum ; W, manclil)le : /, labium ; ///.r, maxillae. 58 INDIAN FOREST INSECTS scutellum. Occasionally the elytra leave a few of the posterior segmentsof the body visible, which are known as the pygidium. The elytra arealways present in beetles, even in cases where there are no lower wings toprotect (as in the longico
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbeetles, bookyear1914
