Directions for collecting and preserving insects . FIG. 5.—An Ichneumon Parasite, Pim-pla annulipes, showing male and fe-male abdomen. FIG. 6.—A Chalcid Parasite, Chal- all the families in which the abdomen in the female is armed with a with a poison reservoir, and may be considered the typical [13] COLLECTING AND PRESERVING INSECTS RILEY. form of the order, including all the social arid fossorial species. Theinserts of this section must be considered essentially beneficial to man,. FIG. 7.—A Horn-tail, Tremex columba. a, larva, showing Thalessa larva attached to its side; b,li
Directions for collecting and preserving insects . FIG. 5.—An Ichneumon Parasite, Pim-pla annulipes, showing male and fe-male abdomen. FIG. 6.—A Chalcid Parasite, Chal- all the families in which the abdomen in the female is armed with a with a poison reservoir, and may be considered the typical [13] COLLECTING AND PRESERVING INSECTS RILEY. form of the order, including all the social arid fossorial species. Theinserts of this section must be considered essentially beneficial to man,. FIG. 7.—A Horn-tail, Tremex columba. a, larva, showing Thalessa larva attached to its side; b,lic;i<l of larva, front view, enlarged; c, female pupa, ventral view; d, male pupa, ventral view; e, adultfemale—all slightly enlarged. notwithstanding the occasional sting of a bee or wasp, the boring ofa carpenter bee, or the importunities of the omnipresent ant. Not onlydo they furnish us with honey and wax, but they play so important apart in the destruction of insects injurious to vegetation that theymay be looked upon as God-appointed guards over the vegetal king-dom—carrying the pollen from plant to plant, and insuring the fertiliza-tion of dioscious species, and the cross-fertilization of others; and beingever ready to clear them of herbivorous worms which gnaw and whole section is well characterized by the uniformly maggot-likenature of the larva. The transformations are complete, but the chitin-oiis larval covering is often so very thin and delicate that the bud
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Keywords: ., bookauthorrileycha, bookcentury1800, bookdecade1890, bookyear1892
