Insects injurious to fruits . specimens, one of which is seen in the figure, are also black;these fly from one tree to another and establish new —Syringe the trees with strong soap-suds or otheralkaline washes, or with strong tobacco-water. A numberof lady-birds and their larvae, also the larvae of Syrphus flies,feed on these lice. Many of them are destroyed by a minuteChalcid fly, which lives within their bodies. This friendlyspecies, Stenomesius aphidicola Ashmead, is shown, muchmagnified, in Fig. 399, where a represents the female, and bthe male. The short lines at the sid
Insects injurious to fruits . specimens, one of which is seen in the figure, are also black;these fly from one tree to another and establish new —Syringe the trees with strong soap-suds or otheralkaline washes, or with strong tobacco-water. A numberof lady-birds and their larvae, also the larvae of Syrphus flies,feed on these lice. Many of them are destroyed by a minuteChalcid fly, which lives within their bodies. This friendlyspecies, Stenomesius aphidicola Ashmead, is shown, muchmagnified, in Fig. 399, where a represents the female, and bthe male. The short lines at the sides indicate their naturalftize. They are so minute that as many as three of the perfectwinged flies have been known to issue from the body of asingle aphis. INSECTS INJURIOUS TO THE ORANGE. 589 A tiny Ichneumon fly, the red-legged Trioxys, THoxystestaceipes Cressou, also infests this species of aphis, while athird friendly parasite is a small Aphidius, a shining, black Fig. 399.
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Keywords: ., bookcentury1900, bookdecade1900, bookidin, booksubjectinsectpests
