Delia rimiventris Michelsen, sp. nov.
Delia rimiventris Michelsen, sp. nov. Figs. 1–3, 4, 6–9. Etymology . The specific epithet ‘ rimiventris ’ is an adjectival form derived from the Latin ‘ rima ’ (crevice) and ‘ venter ’ (belly) and refers to the split male sternites III and IV. Material examined . Type material. Holotype male, NORWAY...
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| Format: | Other/Unknown Material |
| Language: | unknown |
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Zenodo
2007
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| Online Access: | https://doi.org/10.5281/zenodo.6248992 http://treatment.plazi.org/id/995687C62B39510FAEA3FCF132E2DDF5 |
| Summary: | Delia rimiventris Michelsen, sp. nov. Figs. 1–3, 4, 6–9. Etymology . The specific epithet ‘ rimiventris ’ is an adjectival form derived from the Latin ‘ rima ’ (crevice) and ‘ venter ’ (belly) and refers to the split male sternites III and IV. Material examined . Type material. Holotype male, NORWAY: Oppland, northern: Vinstra, 19– 29.vii.1983 (O. Karsholt & V. Michelsen), ZMUC. Paratypes: NORWAY: Same data as for holotype, 11 males, 16 females, ZMUC. Additional material. NORWAY: Vest-Agder, outer: Flekkefjord, Hidra, Kråkedal, 1 male in Malaise trap 4.viii.1981 (A.J. Nilsen), ZMBU. FINLAND: Regio aboensis: Naantali, 1 male 22.vii.1945 (L. Tiensuu), FMNH; Karelia australis: Vehkalahti, 1 male 27.vii.1974 (L. Tiensuu), FMNH. Description. This species closely resembles the common and widespread Delia nuda , for which detailed general descriptions are given by Hennig (1974b) and Griffiths (1991a), except for the notably different male sexual characters described below. The following differential description will help to distinguish D. rimiventris from D. nuda in both sexes: Male. Prealar seta nearly as long as to slightly longer than p notopleural seta vs . slightly to distinctly shorter than p notopleural seta. Proepimerals 1–2 setae and 0–2 setulae vs. 2 setae and 2–5 setulae. Fore tibia without apical pv seta vs. with a short apical pv seta. Mid femur without subapical a seta vs. with subapical a seta. Tergite III on ventro-flexed lateral hind margins with some long setae reaching beyond sternite V (Fig. 3) vs. without such long setae. Sternite III divided into a pair of lobes with tufts of long postero-lateral setae (Fig. 4) vs. undivided, with dense, erect setulae on posterior part. Sternite IV broader than sternite V, split along midline and sparsely setated (Fig. 4) vs. normally wide, entire and less sparsely setated laterally. Surstyli markedly asymmetrical, distally strongly flexed backwards (Figs. 6–7) vs. slightly asymmetrical and barely flexed backwards apically. Gonites (Fig. 8) and phallus (Fig. ... |
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