The Internal Organs of Reproduction of the Male Saw-Fly, Cimbex Americana Leach.

Abstract
The male organs of reproduction of various Hymenoptera have been the object of study of a number of naturalists. Swammerdam (35), Réaumur (25), Dufour (10), Leydig (21), Leuckart and more recently Cheshire (6), Koschewnikoff (20), Bordas (3), and Michaelis (22) have all worked on the reproductive organs of the drone bee. Schneider (31), in his general considerations upon the development of the reproductive organs of insects, has devoted some time to the Cynipidae and Ichneumonidae. Kluge (19) has worked on the male genital organs of Vespa germanica. Bordas (3) carried his research to several genera belonging to various families of Hymenoptera often not closely related. A number of other naturalists:—André (1), Schmiedeknecht (30), Hoffer (17), Radoszkowski (26, 27, 28), Verhoeff (37) and Zander (38, 39) have carried on their study on the external genital apparatus of various Hymenoptera.

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