Sciapus ZELLER 1842
| Autor: | Grichanov, I. Ya., Selivanova, O. O. |
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| Rok vydání: | 2022 |
| Předmět: | |
| DOI: | 10.5281/zenodo.7168671 |
| Popis: | Key to East Palaearctic species of the genus Sciapus (males) 1. Tarsi with one or more segments enlarged (often slightly) …............................................. 2 – All tarsi simple, at most some segments with erect setulae, or elongated, or sometimes 5th segment flattened dorsoventrally and slightly broadened …............................................. 5 2. Mid tarsus with 3rd segment not enlarged, and 4th segment slightly enlarged; fore tarsus simple; body length 5.5–5.8 mm (Primorye) ….................................................................................................................................. S. dytei Negrobov, Maslova et Selivanova, 2012 – Mid tarsus simple; fore tarsus with 4th segment bearing dorsal lobe …............................... 3 3. Acrostichals present; wing vein dm-m straight; body length 7.9–8.1 mm (Primorye, Sakhalin) …............................................................. S. paradoxus Negrobov et Shamshev, 1986 – Acrostichals absent; wing vein dm-m strongly convex ….................................................... 4 4. Epandrial lobe much longer than epandrium, bearing long hairs; antennal pedicel with pale bristles; hind basitarsus much longer than next segment; body length 5.0–8.0 mm (TransPalaearctic) …....................................................................... S. nervosus (Lehmann, 1822) – Epandrial lobe shorter than epandrium, sparsely ciliated; antennal pedicel with dark bristles; body length 6.0 mm (Amurian Region, Primorye) …...................... S. roderi Parent, 1929 5. Frons, mesonotum and abdomen entirely shining green, only very feebly dusted; cerci mostly fused, each cercus with long free distal projection; organ X (ventral cercal projection) reduced ….......................................................................................................................... 6 – Frons, thorax and abdomen not shining, densely pollinose, sometimes with shining spots or stripes; cerci fused, organ X large …................................................................................. 7 6. Distoventral projection of cercus with short simple setae; surstylus with simple setae at apex; body length 4.7–4.9 mm (Primorye) …............................................................................................................................................ S. incognitus Negrobov et Shamshev, 1986 – Distoventral projection of cercus with ventral fringe of strong flattened bristles and 1 long undulate flattened apical seta; ventral process of surstylus with 2 long undulate flattened apical setae; body length 5.0 mm (Kunashir) ….................................. S. basarukini sp. n. 7. Abdomen entirely dark, rarely with yellow-brown spots laterally at base; body length 4.8 mm (Buryatia, Chita, Irkutsk, Primorye) …...... S. sibiricus Negrobov et Shamshev, 1986 – Abdominal segments 1-4 at least partly yellow.................................................................... 8 8. Lobes of organ X bifurcate, with short apical setae; body length 5.0 mm (Gansu, Inner Mongolia) …..................................................................................... S. flexicornis Parent, 1944 – Lobes of organ X fused to apex, thin and beaked at apex, with curved dorsally distal process; with uninterrupted row of ventral setae decreasing in length towards apex; fore and mid tarsi covered with erect setulae; body length 3.6 mm (Yakutia) …............................................................................................................. S. vladimiri Grichanov et Negrobov, 2014 Published as part of Grichanov, I. Ya. & Selivanova, O. O., 2022, The long-legged flies (Diptera: Dolichopodidae) from Kurile Islands, with description of a new species of the genus Sciapus Zeller, 1842, pp. 7-24 in Far Eastern Entomologist 445 on pages 17-18, DOI: 10.25221/fee.445.2, http://zenodo.org/record/7166752 |
| Databáze: | OpenAIRE |
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