Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . nus oh/ra Herbst (Fig. 465 ; «, larva; />, pupa;the thorax of the larva is enlarged by the pupa growing be-neath ; the pupa from which the drawing was made is not fullydeveloped, since the tip of the fulry grown pupa ends in twospines) may be found in all its stages early in May under the bark of the oak. The larva isAvhite, with the head freer fromthe body than in Pissodes strobi(though it is not so representedin the figure). The body of theb
Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . nus oh/ra Herbst (Fig. 465 ; «, larva; />, pupa;the thorax of the larva is enlarged by the pupa growing be-neath ; the pupa from which the drawing was made is not fullydeveloped, since the tip of the fulry grown pupa ends in twospines) may be found in all its stages early in May under the bark of the oak. The larva isAvhite, with the head freer fromthe body than in Pissodes strobi(though it is not so representedin the figure). The body of thebeetle is black, punctured, andthe thorax has a lateral tubercleon the front edge, while the tarsiare brown with whitish hairs. Itis a quarter of an inch long. Conotrachelusneitnj>/i<ir Herbst,the Plum-Vveevil (Fig. 466; a, larva; fr, pupa; c, beetle: <Lplum stung by the weevil) is a short, stout, thick weevil,and the snout is curved, rather longer than the thorax,and bent on the chest when at rest. It is dark brown,spotted with white, ochre-yellow and black, and the surface isrough, from which the beetle, as Harris says, looks like a. CURCULIONID^E. dried bud when shaken from the trees. When the fruit is set,the beetles sting the plums, and sometimes apples and peaches,with their snouts, making a curved incision, in which a singleegg is deposited. Mr. F. C. Hill shows that the curculiomakes the crescent-shaped cut after the egg is pushed in ;t> soas to undermine the egg, and leave it in a kind of flap formedby the little piece of the flesh of the fruit which she has under-mined. Can her object be to wilt the piece around the eggand prevent the growing fruit from crushing it? (PracticalEntomologist, ii, p. 115.) The grub hatched therefrom is alittle footless, fleshy white grub, with a distinct round lightbrown head. The irritation set up by these larva? causesthe fruit to drop before it is of full sixe, with the larva stillwithin. Now full-fed, it \ — burrows dire
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishe, booksubjectinsects
