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A New European Species of Pachynematus Konow (Hymenoptera, Tenthredinidae) feeding on Spruce (Picea)

Published online by Cambridge University Press:  10 July 2009

Robert B. Benson
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Extract

Dr. W. Thalenhorst, of the Niedersächsische Forstliche Versuchsanstalt, Göttingen, Germany, sent me some time ago specimens of what he took to be an abnormally dark form of Pachynematus montanus (Zaddach). These had been reared in 1952 from larvae, not at the time distinguished from the larvae of that species and found feeding with them on spruce (Picea abies) in the Harz Mountains in the previous year. Unfortunately the female was smashed in the post and I did not like to describe a new species that would have to be based on only a few males, though I was not able to identify them with any known species. In 1955, however, he reared another female of the same species and from this he tried to obtain eggs but without any success. This female I now have before me. No further specimens have been found.

Type
Research Paper
Information
Bulletin of Entomological Research , Volume 49 , Issue 2 , July 1958 , pp. 301 - 303
Copyright
Copyright © Cambridge University Press 1958

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References

Benson, R. B. (1951–1958). Hymenoptera. Symphyta.—Handb. Ident. Brit. Insects, 6, pt. 2 (a–c*).Google Scholar
Dalla Torre, C. G. (1894). Catalogus Hymenopterorum … Vol. I. Tenthredinidae incl. Uroceridae (Phyllophaga & Xylophaga).—459 pp. Leipzig, Engelmann.Google Scholar
Enslin, E. (1912–1918). Die Tenthredinoidea Mitteleuropas.—Dtsch. ent. Z., Beih. 1912–17, 790 pp.Google Scholar
Ross, H. H. (1938). The nearctic species of Pikonema, a genus of spruce saw-flies (Hymenoptera, Tenthredinidae).—Proc. ent. Soc. Wash., 40, pp. 17–20.Google Scholar