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Redescription of Diplogasteroides nasuensis Takaki, 1941 and D. magnus Völk, 1950 (Nematoda: Diplogastrina) associated with Scarabaeidae (Co ...

Redescription of Diplogasteroides nasuensis Takaki, 1941 and D. magnus Völk, 1950 (Nematoda:... AbstractA detailed morphological description is presented of Diplogasteroidesnasuensis Takaki, 1941 and D. magnus Völk, 1950, using light and scanningelectron microscopy. Neoaplectana melolonthae Weiser, 1958 andDiplogasteroides (Rhabdontolaimus) berwigi Rühm, 1959 are synonymised withD. nasuensis. This gonochoristic species is distinguished from thehermaphroditic D. magnus by the dorsal metastomal decoration which consistsof bristle-like protrusions instead of a more or less uniform tooth. Thespermatocytes in D. nasuensis are twice as big as those in hermaphrodites ofD. magnus. Dauer juveniles of D. nasuensis are considerably bigger thanthose of D. magnus. Dauer juveniles of both species are present on woodcockchafer (Melolontha hippocastani) larvae and adults but, on adultbeetles, D. nasuensis dauer juveniles enter the genital pouch, whereas thoseof D. magnus are found under the hind coxae. In Germany, D. nasuensis isfound only on M. hippocastani. D. magnus dauer juveniles are also found on avariety of other Scarabaeidae. Further small differences distinguish the twospecies. The genus Diplogasteroides is proposed to be taken in a broadsense. Several genera names are synonymised with Diplogasteroides. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Nematology Brill

Redescription of Diplogasteroides nasuensis Takaki, 1941 and D. magnus Völk, 1950 (Nematoda: Diplogastrina) associated with Scarabaeidae (Co ...

Kiontke, Karin; Manegold, Albrecht; Sudhaus, Walter
Nematology , Volume 3 (8): 16 – Jan 1, 2001
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Publisher
Brill
Copyright
Copyright © Koninklijke Brill NV, Leiden, The Netherlands
ISSN
1388-5545
eISSN
1568-5411
DOI
10.1163/156854101753625317
Publisher site
See Article on Publisher Site

Abstract

AbstractA detailed morphological description is presented of Diplogasteroidesnasuensis Takaki, 1941 and D. magnus Völk, 1950, using light and scanningelectron microscopy. Neoaplectana melolonthae Weiser, 1958 andDiplogasteroides (Rhabdontolaimus) berwigi Rühm, 1959 are synonymised withD. nasuensis. This gonochoristic species is distinguished from thehermaphroditic D. magnus by the dorsal metastomal decoration which consistsof bristle-like protrusions instead of a more or less uniform tooth. Thespermatocytes in D. nasuensis are twice as big as those in hermaphrodites ofD. magnus. Dauer juveniles of D. nasuensis are considerably bigger thanthose of D. magnus. Dauer juveniles of both species are present on woodcockchafer (Melolontha hippocastani) larvae and adults but, on adultbeetles, D. nasuensis dauer juveniles enter the genital pouch, whereas thoseof D. magnus are found under the hind coxae. In Germany, D. nasuensis isfound only on M. hippocastani. D. magnus dauer juveniles are also found on avariety of other Scarabaeidae. Further small differences distinguish the twospecies. The genus Diplogasteroides is proposed to be taken in a broadsense. Several genera names are synonymised with Diplogasteroides.

Journal

Nematology – Brill

Published: Jan 1, 2001

Keywords: COCKCHAFER; SYNONYMISATION; RHABDONTOLAIMUS; HIPPOCASTANI; NEOAPLECTANA; MELOLONTHA; DIPLOGASTEROIDES; BERWIGI

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