. Annual report - Entomological Society of Ontario. Entomological Society of Ontario; Insect pests; Insects. 66 The subfamily Inquilin{» as its title indicates contains species which are inquilines or guests in the galls of the preceding species, which in structure and appearance they closely resemble. The truly parasitic species of tbe Cynipidse are comparatively few in number. —The species belonging to this family are easily distinguished, as the abdomen is attached to the disc or base of the metathorax, instead of to the apex as in the other families. The species found in Canada b
. Annual report - Entomological Society of Ontario. Entomological Society of Ontario; Insect pests; Insects. 66 The subfamily Inquilin{» as its title indicates contains species which are inquilines or guests in the galls of the preceding species, which in structure and appearance they closely resemble. The truly parasitic species of tbe Cynipidse are comparatively few in number. —The species belonging to this family are easily distinguished, as the abdomen is attached to the disc or base of the metathorax, instead of to the apex as in the other families. The species found in Canada belong chiefly to the genus Aulacus, the members of which frequent decaying trees, in which they may be found ovipositing. We have also two species of Foenus—insects with a curious sickle-shaped abdomen—of which one [F. incertus) has a short ovipositor, while the other {F. tarsatorius) has a very long one. They may frequently be seen flying about trees, telegraph poles, etc., examining and entering insect burrows and crevices, and also upon golden-rod and other flowers in autumn. They are said to be parasitic upon certain bees. The species of Evania, which have curious hatched-shaped abdomens, are said to infest cockroaches. Trigonalid^.—This family contains only one genus (Trigonalys) and the four species therein are of rare occurrence and not as yet recorded from Canada. Habits unknown to me. IcHNEUMONlDiE.—This family is a very extensive one and contains our largest and best known parasites. It is divided into five sub-families of somewhat equal size. Of the sub-family Ichneumoninse there are more than two hundred species credited to the typical genus Ichneumon, and of these at least fifty occur in the vicinity of Ottawa. These ichneumons are somewhat wasp-like in form, but more slender ; our largest species {I. grandis) is sometimes an inch in length, but some of the smaller species are less than one-third of an inch and the average size is about two-thirds. The o
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectinsects, bookyear1872
