. Annual report. Entomological Society of Ontario; Insect pests; Insects. 32 ENTOMOLOGICAL SOCIETY OF ONTARIO. From this emerges in course of time the splendid butterfly, Fig. 26, which soarB so. gracefully through the summer Fig. 26. The larva (larva, a mask) is frequently without external organs and has a biting- mouth : hence, it is a great feeder and usually very destructive to vegetation. The larval condition continues from two to six weeks in most; but there are some in which it is more than a jear, the wire worm, white grub, and some "; Pupa (pupa, a doll).


. Annual report. Entomological Society of Ontario; Insect pests; Insects. 32 ENTOMOLOGICAL SOCIETY OF ONTARIO. From this emerges in course of time the splendid butterfly, Fig. 26, which soarB so. gracefully through the summer Fig. 26. The larva (larva, a mask) is frequently without external organs and has a biting- mouth : hence, it is a great feeder and usually very destructive to vegetation. The larval condition continues from two to six weeks in most; but there are some in which it is more than a jear, the wire worm, white grub, and some "; Pupa (pupa, a doll). This is generally a resting condition, which, in summer, usually lasts but a short time (about two weeks) ; but if entered in autumn, continues till the next spring. The term chrysalis (c/irysos, gold) is often applied to this stage in butterflies, because in some it is dotted with golden spots. In most moths a cocoon is woven around the pupa. Nymph is applied to the young of such as do not undergo com- plete metamorphosis in development; in such the young are much the same in appearance as the adult, but smaller, and usually wingless; eg., grasshoppers, bugs, etc. Imago (imago, an image). This term is applied to the perfect insect, which is often harmless, as far as feeding upon vegetation is concerned. The following names show some of the common terms applied to these stages in some orders of insects : Larva Pupa Imago. Borer, grub " Beetle. Maggot " Fly. Caterpillar or worm Cocoon Moth. " " Chrysalis Butterfly. Nymph Nymph Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Entomological Society of Ontario; Ontario. Dept. of Agriculture. Toronto, The Society


Size: 2231px × 1120px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872