Dineura

Dahlbom, 1835

Species Guides

Dineura militaris

Dineura is a of in the Tenthredinidae. occur in the West Palaearctic, Easternmost Asia, and North America. The genus contains at least four recognized West Palaearctic species, with taxonomic revisions clarifying species boundaries and synonymies. Reproductive has been studied in D. virididorsata, which exhibits arrhenotokous .

Dineura militaris by (c) christine123, some rights reserved (CC BY), uploaded by christine123. Used under a CC-BY license.

Pronunciation

How to pronounce Dineura: /dɪˈnɛʊrə/

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Identification

Females possess a lancet (saw) used for oviposition into plant tissue. The saw structure, particularly ctenidial structures on the saw, provides reliable taxonomic characters for identification. Saw wear occurs with use but does not obscure diagnostic features. An illustrated key to is available for West Palaearctic species.

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Distribution

Europe, Easternmost Asia, and North America. In the West Palaearctic, four occur including northern Europe and Fennoscandia, though D. parcivalvis has not been recorded from Scandinavia.

Behavior

Females of D. virididorsata exhibit calling involving abdominal curling and release. Virgin females retain this calling behavior, while mated females reduce calling after mating. Both virgin and mated females are capable of oviposition into leaf tissue.

More Details

Taxonomic history

Dineura pullior Schmidt & Walter, 1995 has been synonymized with D. virididorsata (Retzius, 1783). Lectotypes have been designated for seven nominal to stabilize .

Reproductive system

Arrhenotokous occurs in D. virididorsata: virgin females produce only male offspring, while mated females produce both sexes. is synchronous, and females may mate daily with different males in laboratory conditions.