New species of Aprionus (Diptera, Cecidomyiidae, Micromyinae) from Sweden and other parts of the Palearctic region Author Jaschhof, Mathias 8B4B11B4-7C33-41AC-A042-AA9903CDC4B1 Station Linné, Ölands Skogsby 161, SE- 38693 Färjestaden, Sweden. & urn: lsid: zoobank. org: author: 8 B 4 B 11 B 4 - 7 C 33 - 41 AC-A 042 - AA 9903 CDC 4 B 1 & Corresponding author: mjaschhof @ yahoo. de mjaschhof@yahoo.de Author Jaschhof, Catrin BE4CA083-88F6-4037-826D-605FFF5078F7 Station Linné, Ölands Skogsby 161, SE- 38693 Färjestaden, Sweden. & Email: cjaschhof @ yahoo. de & urn: lsid: zoobank. org: author: BE 4 CA 083 - 88 F 6 - 4037 - 826 D- 605 FFF 5078 F 7 cjaschhof@yahoo.de text European Journal of Taxonomy 2017 2017-12-12 378 1 38 journal article 21947 10.5852/ejt.2017.378 d8db2633-9bda-4f4e-9ee6-a5f4bf19ad59 2118-9773 3838627 81628632-5B35-49E5-AB7A-B8B50B2FB06B Aprionus sleipniri sp. nov. urn:lsid:zoobank.org:act: 858990F3-8AB7-4B04-9CC7-368F916028F7 Fig. 11 Diagnosis Aprionus sleipniri sp. nov. is distinguished from all other Aprionus , including the styloideus group, by the tegmen whose narrowly rounded apex is strongly sclerotized (↓, Fig. 11A ). In lateral view it is obvious that this sclerotized cap transitions smoothly into the membranous portion of the aedeagus ventrally of the tegmen. The 2–4 pairs of short tegminal fingers are directed posteriorly rather than laterally, so intersect only slightly or not at all (↓). The gonostylar tooth (↓), which is shaped like a fingernail, is much smaller than that found in the other species of the styloideus group. As an unusual condition in Aprionus , the ventral gonocoxal bridge is membranous, not made of a thin, sclerotized bar. Fig. 11. Aprionus sleipniri sp. nov. , ♂. A . Genitalia, ventral, holotype. B . Fourth flagellomere, lateral, paratype. Scale lines: 0.05 mm. Arrows indicate diagnostic characters. Etymology Sleipnir is Odin’s eight-legged horse. Material examined Holotype SWEDEN : ♂ , Öland, Mörbylånga, Västerstad elm-forest Nature Reserve, 56.42° N , 16.42° E , mature elm forest, sweepnet and aspirator, M. and C. Jaschhof leg., 9 Jun. 2014 ( NHRS, no. CEC169 ). Paratypes SWEDEN : 5 ♂♂ , same data as for the holotype ( NHRS , nos CEC 170– CEC 174). Other material studied SWEDEN : 1 ♂ , Öland, Mörbylånga, Skogsby forest NR, mixed broadleaf forest, MT , MCJ leg., 13 May–9 Jun. 2015 ( DEI , no. CEC 372); 1 ♂ , Öland, Stora Dalby forest NR, 56.47° N , 16.45° E , mixed broadleaf forest, MT , MCJ leg., 5 May.–7 Jun. 2015 ( DEI , no. CEC 373). Other characters Body size 1.1–1.2 mm . HEAD. Postfrons setose. Eye bridge 2–3 ommatidia long dorsally. A dense row of 8–9 postocular bristles. Neck of fourth flagellomere shorter than node, 3–4 thick translucent sensilla, either simply hair-shaped or two- to three-branched ( Fig. 11B ). Palpus 3-segmented, length of segments varying. WING. ApicR 1 2.0–2.5 times as long as Rs. LEGS. Claws slightly bent, 2 fine teeth. Empodia rudimentary. TERMINALIA ( Fig. 11A ). Ninth tergite short, subrectangular, anterior margin straight, fully sclerotized. Dorsal gonocoxal bridge typically subtriangular, extends beyond ventroanterior gonocoxal edge. Gonostylus elongate, convex on basal half portion, basolateral apophysis poorly developed. Tegmen as long as gonocoxites, evenly tapered towards apex. Anterior corners of subanal plate apparent as poorly defined, weakly sclerotized areas with dark centers. Distribution and phenology Sweden (Öland). Adults were collected in May and June in broadleaf forests.