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Étude sur les Hémiptères Plokiophilidae

Étude sur les Hémiptères Plokiophilidae Summary J. Carayon: Notes on the Hemiptera Plokiophilidae The Plokiophilidae, which are small Hemiptera Cimicoidea with a potentially extensive carnivorous diet, live usually only on webs, Spider webs in the case of the Plokiophilinae, Embioptera webs for the Embiophilinae. They can be bred for several generations without the presence of their usual hosts, provided that they are given a fibrous substratum, such as cotton-wool. The Plokiophilinae, which are commensals, usually use the insects killed by the Spiders, but are nonetheless able to kill small preys by their own means. The Embiophilinae, which are semi-parasitic, prey upon the eggs and the young larvae of Embioptera but, more often than not, only suck the recently dead individuals and may feed too upon Acari. As copulation always takes place by perforation of the abdominal integument, the males have specially modified genitalia and the females show a paragenital system. The latter includes: — in all cases, at the basis of each ovary, a seminal conceptacle of a very peculiar type, — in some species a pair of copulatory tubes, variously located, ending in one or two mesospermaleges. The apex of the germarium contains, in adults of Plokiophilidae, as well as in Anthocoridae and many other Hemiptera, young and yet undifferenciated trophocytes. In the Microphysidae, Miridae and Tingidae, on the contrary, it shows only voluminous trophocytes, the differenciation of which has taken place very early, during the larval life. This fact, with the addition of other morphological and anatomical differences, shows that Plokiophilidae and Microphysidae do not belong to the same group of families. A noteworthy particularity of the Plokiophilidae resides in the presence, in the external margin of the corium, of large unicellular glands, the secretary pores of which give, by their number and disposition, some useful systematic characters. Described taxa: Plokiophiloides gen. nov. with 5 new species all African: P. asolen, P. balachowskyi, P. pilosus, P. biforis, P. tubifer; Lipokophila stysi sp. nov. from Brazil and description of the female of L. chinai Štys; Acladina, a new subgenus of Embiophila, based upon E. (Acladina) africana sp. nov. A key is given for the identification of all known Plokiophilidae. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annales de la Société entomologique de France (N S ) Taylor & Francis

Étude sur les Hémiptères Plokiophilidae

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Publisher
Taylor & Francis
Copyright
© 1974 Société entomologique de France
ISSN
2168-6351
eISSN
0037-9271
DOI
10.1080/21686351.1974.12278162
Publisher site
See Article on Publisher Site

Abstract

Summary J. Carayon: Notes on the Hemiptera Plokiophilidae The Plokiophilidae, which are small Hemiptera Cimicoidea with a potentially extensive carnivorous diet, live usually only on webs, Spider webs in the case of the Plokiophilinae, Embioptera webs for the Embiophilinae. They can be bred for several generations without the presence of their usual hosts, provided that they are given a fibrous substratum, such as cotton-wool. The Plokiophilinae, which are commensals, usually use the insects killed by the Spiders, but are nonetheless able to kill small preys by their own means. The Embiophilinae, which are semi-parasitic, prey upon the eggs and the young larvae of Embioptera but, more often than not, only suck the recently dead individuals and may feed too upon Acari. As copulation always takes place by perforation of the abdominal integument, the males have specially modified genitalia and the females show a paragenital system. The latter includes: — in all cases, at the basis of each ovary, a seminal conceptacle of a very peculiar type, — in some species a pair of copulatory tubes, variously located, ending in one or two mesospermaleges. The apex of the germarium contains, in adults of Plokiophilidae, as well as in Anthocoridae and many other Hemiptera, young and yet undifferenciated trophocytes. In the Microphysidae, Miridae and Tingidae, on the contrary, it shows only voluminous trophocytes, the differenciation of which has taken place very early, during the larval life. This fact, with the addition of other morphological and anatomical differences, shows that Plokiophilidae and Microphysidae do not belong to the same group of families. A noteworthy particularity of the Plokiophilidae resides in the presence, in the external margin of the corium, of large unicellular glands, the secretary pores of which give, by their number and disposition, some useful systematic characters. Described taxa: Plokiophiloides gen. nov. with 5 new species all African: P. asolen, P. balachowskyi, P. pilosus, P. biforis, P. tubifer; Lipokophila stysi sp. nov. from Brazil and description of the female of L. chinai Štys; Acladina, a new subgenus of Embiophila, based upon E. (Acladina) africana sp. nov. A key is given for the identification of all known Plokiophilidae.

Journal

Annales de la Société entomologique de France (N S ) – Taylor & Francis

Published: Jul 31, 1974

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