The Identity of the Gall-Wasp Causing Stunted Acorns (Hymenoptera, Cynipidae)

The Identity of the Gall-Wasp Causing Stunted Acorns (Hymenoptera, Cynipidae) THE IDENTITY OF THE GALL-WASP CAUSING STUNTED ACORNS (HYMENOPTERA, CYNIPIDAE) by A. A. WIEBES-RIJKS (Division of Systematics and Evolutionary Zoology, University of Leiden, The Netherlands) SUMMARY Description of the agamous female of Andricus legitimus spec. nov., causing mono- thalamous galls in stunted acorns of European Quercus robur L. Records of inquilines and parasites from polythalamous galls: Synergus clandestinus Eady, S. gallaepomiformis (Fonsc.) (Cynipidae); Megastigmus dorsalis (F.) (Torymidae) and Eurytoma brunni- ventris Ratz. (Eurytomidae). According to BUHR (1965: 966), there occur two galls in stunted acorns of European oaks. The one is monothalamous (no. 5535), having one chamber per gall, situated in between the hardened cotyledons. The gall-wasp causing it remained unknown, although MAYR described the gall as early as 1872. The other gall is poly- thalamous (no. 5536), with up to nine chambers. It was supposed to be caused by a species of Callirhytis related to C. glandium (Giraud), known from the acorns of Quercus cerris L. From the acorns of Quercus robur L., specimens of Synergus clandestinus Eady were reared in great numbers and recently it was suggested that this species caused the gall. It now appears that the monothalamous form is the original gall caused by http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Netherlands Journal of Zoology (in 2003 continued as Animal Biology) Brill

The Identity of the Gall-Wasp Causing Stunted Acorns (Hymenoptera, Cynipidae)

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Publisher
Brill
Copyright
© 1979 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2960
eISSN
1568-542X
D.O.I.
10.1163/002829679X00403
Publisher site
See Article on Publisher Site

Abstract

THE IDENTITY OF THE GALL-WASP CAUSING STUNTED ACORNS (HYMENOPTERA, CYNIPIDAE) by A. A. WIEBES-RIJKS (Division of Systematics and Evolutionary Zoology, University of Leiden, The Netherlands) SUMMARY Description of the agamous female of Andricus legitimus spec. nov., causing mono- thalamous galls in stunted acorns of European Quercus robur L. Records of inquilines and parasites from polythalamous galls: Synergus clandestinus Eady, S. gallaepomiformis (Fonsc.) (Cynipidae); Megastigmus dorsalis (F.) (Torymidae) and Eurytoma brunni- ventris Ratz. (Eurytomidae). According to BUHR (1965: 966), there occur two galls in stunted acorns of European oaks. The one is monothalamous (no. 5535), having one chamber per gall, situated in between the hardened cotyledons. The gall-wasp causing it remained unknown, although MAYR described the gall as early as 1872. The other gall is poly- thalamous (no. 5536), with up to nine chambers. It was supposed to be caused by a species of Callirhytis related to C. glandium (Giraud), known from the acorns of Quercus cerris L. From the acorns of Quercus robur L., specimens of Synergus clandestinus Eady were reared in great numbers and recently it was suggested that this species caused the gall. It now appears that the monothalamous form is the original gall caused by

Journal

Netherlands Journal of Zoology (in 2003 continued as Animal Biology)Brill

Published: Jan 1, 1979

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