. Elementary text-book of zoology, general part and special part: protozoa to insecta. Animals. 566 habitat in the abdomen of wasps and humble bees {Bomhyliidce) from which they only protrude the anterior part of their body. In copu- lation the males are said to open by means of their copulator}'- organ the dorsal tube of the female, which is at first closed. The ovaries have no oviduct, and continue as it seems at an earher stage of development, since they—probably like those of the viviparous Cecidomyia larva;—produce eggs. The eggs fall freely into the body cavity, are fertilized and develo
. Elementary text-book of zoology, general part and special part: protozoa to insecta. Animals. 566 habitat in the abdomen of wasps and humble bees {Bomhyliidce) from which they only protrude the anterior part of their body. In copu- lation the males are said to open by means of their copulator}'- organ the dorsal tube of the female, which is at first closed. The ovaries have no oviduct, and continue as it seems at an earher stage of development, since they—probably like those of the viviparous Cecidomyia larva;—produce eggs. The eggs fall freely into the body cavity, are fertilized and develop (perhaps sometimes parthenogene- tieally) into larvae, which pass out through the above-mentioned dorsal canal and become attached to larvse of bees and wasps (fig. 470). In this larval state they are able to move about and possess, like the young larvfe of Cantheridce, three well-developed pairs of legs, and two caudal seta? on the abdojien. They bore their way into the body of their new host. About eight days later they undergo an ecdysis, and '•hange to an apodal cylindiical maggot, which becomes a pupa within the Hymenopteran pupa, and as such bores its way out with its head from the abdomen of the latter. The males leave the pupal skin and seek the females. They seem to live only a short time. Fam. Stylopidae. Xenon Rossil Kiri). (A". vcfijMnnn Eoss.) parasitic in Polistcs gallica. Stylo^s viclitta; —Sti/lopsChiVrfreni(afterKirby). a,Larva. b, Female, c, Male. Order 5.—Rhyncliota*=Hemiptera. Insects with jointed rostrum, j^iercing [excejytionally biting) mouth parts. With usucdly free prothorax and incomplete metamorphosis. The mouth parts are almost without exception arranged for taking up fluid nourishment, and are usually represented by a rostrum, in which the mandibles and maxillse, as four rigid styles, are moved backwards and forwards. The rostrum, which is formed * Burmcistcr, " Handbuch der ; II. Bd., Berlin 183
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectanimals, bookyear1892
