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The Post-embryonic Development of Phaenoserphus viator Hal. (Proctotrypoidea), a Parasite of the Larva of Pterostichus niger (Carabidae), with Notes on the Anatomy of the Larva

Published online by Cambridge University Press:  06 April 2009

L. E. S. Eastham
Affiliation:
(Department of Zoology, Cambridge.)

Extract

1. The life-history of Phaenoserphus viator is described.

Four larval instars are found, endoparasitic in the larvae of Pterostichus niger. At thee nd of the last larval instar the parasites, which may number as many as 45 in a single host, emerge, and while still attached, pupate without spinning a cocoon.

Adults may appear in August or September.

The effect of the parasite in inhibiting metamorphosis of the host is discussed.

2. The first observed larva is atracheate and incompletely segmented at first and is of the polypod type bearing paired prolegs on the body segments.

Subsequent instars are apodate.

The tracheal system develops progressively in the several instars, but only becomes functional in the final stage.

3. The anatomy of the larva is briefly described with the exception of the musculature.

Tracheal development is described. Gas only appears in the tracheae after the development of the tracheole cells puts the tracheae into communication with the body wall and other organs.

In the circulatory system an important accessory organ is the neural sinus, formed by the enclosure of the ventral nerve cord beneath a connective tissue curtain.

The imaginal discs of the hypodermis are briefly described, these being clearly defined in the head, thorax, and posterior abdominal segments.

The nervous system consists of a brain, suboesophageal ganglion and 11 ventral ganglia, the most posterior being tripartite. This system is connected with the sympathetic, by nerves passing from the cerebral commissures to a frontal ganglion which lies above the oesophagus and behind the labrum.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1929

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References

André, E. (1879). Species des Hyménoptères d' Europe el d' Algérie. Paris.CrossRefGoogle Scholar
Ashmead, W. H. (1893). Monograph of N. American Proctotrypidae. Bull. U.S. Nat. Mus. 45.Google Scholar
Ayers, H. (1884). On the development of Oecanthus niveus and its parasite Teleas. Mem. Boston Soc. Nat. Hist. 3.Google Scholar
Berlese, A. (1913). Intorno alle metamorfosi degli Insetti. Redia, 9.Google Scholar
Bischoff, H. (1923). Biologie der Tiere Deutschlands. Lief. 8, Teil 42, Hymenoptera. Berlin.Google Scholar
Blunck, H. (1925). Syllabus der Insektenbiologie. Berlin.Google Scholar
Brocher, F. (1919). Les organes pulsatiles meso- et métatergaux des Lépidoptères. Arch. Zool. Exp. 58.Google Scholar
Chophard, L. (1922). Les parasites de la Mante Religiense. Ann. Soc. Ent. France, 91.Google Scholar
Clausen, G. P. (1923). The Biology of Schizaspidia venuicornis, a Eucharid parasite of Camponota. Ann. Ent. Soc. Amer. 16.CrossRefGoogle Scholar
Comstock, J. H. (1925). An Introduction to Entomology. Ithaca.Google Scholar
Curtis, J. (1883). Farm Insects. London.Google Scholar
Elliott, E. A. and Morley, C. (1907 and 1911). On Hymenopterous parasites of Coleoptera. Trans. Ent. Soc. London.CrossRefGoogle Scholar
Frohawk, F. W. (1886). Proctotrupes ater Nees, bred from larva of Creophilus maxittosus. The Entomologist, 1886, p. 225.Google Scholar
Gatenby, J. B. (1919). Notes on the Bionomics, Embryology and Anatomy of certain Hymenoptera Parasitica, especially of Microgaster connexus Nees. J. Linn. Soc. Zool. 33.CrossRefGoogle Scholar
Haviland, M. D. (1920). On the Bionomics and Development of Lygocerus testaceimanus and Lygocerus cameroni Kieffer (Proctotrypoidae-Ceraphronidae), parasites of Aphidius, Braconidae. Quart. J. Micr. Sci. 65.Google Scholar
Henneguy, L. (1904). Les Insectes. Paris.Google Scholar
Imms, A. D. (1925). A General Textbook of Entomology. Methuen.Google Scholar
Imms, A. D. (1916 and 1918). Observations on the Insect parasites of some Coccidae. Quart. J. Micr. Sci. 61 and 62.Google Scholar
James, H. C. (1928). On the Life-histories and Economic status of certain Cynipid parasites of Dipterous larvae with descriptions of some new larval forms. Ann. App. Biol. 15.CrossRefGoogle Scholar
Janet, C. (1899). Sur les nerfs céphaliques, les corpora allata et le tentorium de la fourmi Myrmica rubra L. Mém. Soc. Zool. France, 12.Google Scholar
Kawall, P. (1855). Entomologische Notizen aus Kurland. Stett. Ent. Zeit.Google Scholar
Keilin, D. (1924). On the appearance of gas in the tracheae of insects. Proc. Camb. Phil. Soc. (Biol. Sci.) 1.Google Scholar
Keilin, D. (1917). Recherches sur les Anthomyides à larves carnivores. Parasitology, 9.CrossRefGoogle Scholar
Keilin, D. et Pluvinel, E. (1913). Sur la Biologie d'un Cynipide entomophage, Eucoila keilini. Bull. Sci. France et Belg. 47.Google Scholar
Kieffer, J. J. (1914). Serphidae et Calliceratidae. Das Tierreich, 42.Google Scholar
Kirby, W. F. (1857). Introduction to Entomology. London.Google Scholar
Korschelt, E. (1923). Bearbeitung einheimischer Tiere der Gelbrand Dytiscus marginalis. Leipzig.Google Scholar
Kreuscher, E. (1922). Die Fettkörper und die Oenocyten von Dytiscus. Zeitschr. f. wiss. Zool. 119.Google Scholar
Marchal, P. (1906). Recherches sur la Biologie et le développement des Hyménoptères parasites. Les Platygasters. Arch. Zool. Exp. 4ème Sér. 2.Google Scholar
Morley, C. (1922). A Synopsis of British Proctotrypidae. (i) Subfamily Proctotrypinae. The Entomologist. 55.Google Scholar
Nabert, A. (1913). Die Corpora allata der Insekten. Zeitschr. f. wiss. Zool. 104.Google Scholar
Newman, E. (1867). A Proctotrupes, parasitic on a Myriapod. The Entomologist, 1867.Google Scholar
Pantel, J. (1909). Recherches sur les Diptères à larves entomobies. La Cellule, 26.Google Scholar
Parker, H. L. (1924). Recherches sur les formes post-embryonnaires des Chalcidiens. Ann. Soc. Ent. France, 93.Google Scholar
Pavlovsky, E. N. and Zarin, E. J. (1922). On the structure of the alimentary canal and its ferments in the Bee, Apis mellifera L. Quart. J. Micr. Sci. 66.Google Scholar
Pemberton, C. E. and Willard, H. F. (1918). A contribution to the Biology of Fruitfly parasites in Hawaii. J. Agric. Research, 8.Google Scholar
Pérez, C. (1910). Recherches histologiques sur la métamorphose des Muscides. Arch. Zool. Exp. 5ème Sér. 4.Google Scholar
Richardson, C. H. (1913). Studies on habits and the development of a Hymenopterous parasite, Spalangia muscidarum Richardson. J. of Morphology, 24.CrossRefGoogle Scholar
Roubaud, E. (1922). Étude sur le sommeil d'hiver pré-imaginal des Muscides. Bull. Biol. France et Belg. 56.Google Scholar
Seurat, L. G. (1899). Contributions à l'étude des Hyménoptères Entomophages. Ann. Sci. Nat. Zool. 10.Google Scholar
Sharp, D. (1910). Cambridge Natural History. Insects. London.Google Scholar