Winnertzia curvata Panelius

Jaschhof, Mathias & Jaschhof, Catrin, 2020, Reevaluation of species richness in Winnertzia (Diptera, Cecidomyiidae, Winnertziinae), with descriptions of 37 new species from Sweden, Peru and Australia, Zootaxa 4829 (1), pp. 1-72 : 35-36

Winnertzia curvata Panelius

Diagnosis. A small to medium-sized, brown Winnertzia , distinguished by the following combination of male genitalic characters ( Jaschhof & Jaschhof 2013: fig. 37A–C). The gonostylus, which is nearly parallel-sided and twice as long as broad, has a broad pectinate claw with an indistinct furrow along its base. Of the gonocoxal synsclerite, the broadly V-shaped emargination is conspicuously short; the membranous area below the emargination is small; a large portion ventrobasally is devoid of setae; the medial bridges are slightly bulging; and the dorsal apodemes are short and, as a rule, slightly bent inwards. The tegmen, whose outline is broadly subtriangular, is sharply contoured except for a characteristic, subapical break; the long parameral apodemes are oriented ventrolaterad. The anterior margin of the aedeagal bulge is apparent as a distinct, transveral line. The aedeagal apodeme is, slightly but appreciably, broadened near the midlength, a peculiarity displayed by almost all the specimens studied here. The posterior edge of the ninth tergite, which is markedly narrowed, has a shallow indentation medially whose periphery is almost always darkly pigmented.

Discussion. We know of a Winnertzia resembling W. curvata , except that it is larger, the flagellomeral nodes are markedly more slender, the wings are longer, the gonostylus is more strongly tapered towards the apex, the gonocoxal apodemes are longer, and the ninth tergite is not so darkly pigmented posteriorly. We assume this is an unnamed species but regard our material, three males from southern Sweden (Skåne, Öland), as not sufficient for taxonomic description.

Distribution in Sweden. Our specimens of W. curvata , altogether 53 males, come from nine biological provinces, from Halland in the south to Lule Lappmark in the north. This is one of the most common and widespread Winnertzia in Sweden.

Material studied. Specimens of W. curvata listed by Jaschhof & Jaschhof (2013) and as follows. Sweden: 1 male, Öland, Mörbylånga, Frösslunda alvar, alvar pasture, 9 May–3 June 2005, MT, SMTP (trap 20, collection event 1495) (spn CEC 2909 in NHRS); 1 male, Mörbylånga, Gamla Skogsby (Kalkstad), mixed broadleaf forest, 9 June–14 July 2015, MT, MCJ (spn CEC 2891 in SDEI); 1 male, same data but 3 June–4 July 2016 (spn CEC 2890 in SDEI); 1 male, Mörbylånga, Vickleby ädellövskog NR, mixed broadleaf forest, 17 June–14 July 2015, MT, MCJ (spn CEC 2896 in SDEI); 1 male, Öland, Borgholm, Trollskogen NR, old-growth pine forest, 5 July 2014, sweepnet, MCJ (spn CEC 2892 in SDEI); 1 male, same locality but 4–31 July 2015, MT, MCJ (spn CEC 2893 in SDEI); 2 males, Borgholm, Skepparsäng NR, dry pine forest, 7 May–21 July 2015, MT, MCJ (spns CEC 2894– CEC 2895 in SDEI); 1 male, Halland, Kungsbacka, Särö, Västerskog, mixed forest of oak and pine, 25 July–9 August 2004, MT, SMTP (trap 33, collection event 1981) (spn CEC 2910 in NHRS); 2 males, Södermanland, Haninge, Tyresta NP, Urskogsslingan, pine forest, 8 June–2 July 2003, MT, SMTP (trap 3, collection event 84) (spns CEC 2911– CEC 2912 in NHRS); 1 male, same data but spruce forest, 21 July–4 August 2003 (trap 4, collection event 89) (spn CEC 2913 in NHRS); 1 male, Södermanland, Huddinge, Sofielund Recycling Center, pine forest near garbage dump, 10–16 August 2004, MT, SMTP (trap 5, collection event 767) (spn CEC 2914 in NHRS); 1 male, Södermanland, Södertälje, Tullgarns näs, Rävsalaviken, mixed forest next to pasture, 23 July–1 August 2003, MT, SMTP (trap 30, collection event 5003) (spn CEC 2915 in NHRS); 1 male, Uppland, Uppsala, Ekdalen NR, sparse oak wood, 3–23 August 2003, MT, SMTP (trap 27, collection event 1036) (spn CEC 2925 in NHRS); 1 male, same data but 27 June–17 July 2005 (collection event 1703); 6 males, Uppland, Älvkarleby, Båtfors, pine forest, 17 June–3 July 2003, MT, SMTP (trap 7, collection event 378) (spns CEC 2918– CEC 2922 and CEC 2924 in NHRS); 1 male, same data but 17 July–16 August 2005 (collection event 1593); 1 male, Dalarna, Vansbro, Tjärnberget NR, spruce forest, 16 June–23 July 2010, MT, MCJ (spn CEC 2902 in SDEI); 1 male, Dalarna, Orsa, 4 km NW Ejheden, recently burnt mixed forest of conifers and birch, 26 June–18 July 2018, MT, MCJ (spn CEC 2903 in SDEI); 1 male, Orsa, Unnan valley, Näckådalen, old-growth mixed boreal forest, 1–20 July 2018, MT, MCJ (spn CEC 2905 in SDEI); 4 males, Orsa, Gåsberget NR, swamp forest of spruce, pine and birch, 25 June–18 July 2018, MT, MCJ (spns CEC 2904 and CEC 2906– CEC 2908 in SDEI); 1 male, Västerbotten, Vindeln, Svartberget Experimental Forest, Åheden, pine forest, 9–23 July 2004, MT, SMTP (trap 61, collection event 1301) (spn CEC 2917 in NHRS); 1 male, Lule Lappmark, Jokkmokk, Vuollerim, Älvvägen, Lövgården, backyard, 16–30 June 2017, MT, M. Karström & MCJ (spn CEC 2897 in SDEI); 2 males, Jokkmokk, Messaure, herb-rich boreal forest, 3–30 July 2016, MT, MCJ (spns CEC 2899– CEC 2900 in SDEI); 1 male, Jokkmokk, 6 km SE Vuollerim, Lagnäsån, herb-rich boreal forest, 2–29 July 2016, MT, MCJ (spn CEC 2901 in SDEI). Winnertzia sp. near curvata : spns CEC 3215– CEC 3217 in NHRS.