Aprionus ymiri Jaschhof & Jaschhof 2017, sp. nov.

• Main Authors: Jaschhof, Mathias, Jaschhof, Catrin
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2017
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Cecidomyiidae; Aprionus; Aprionus ymiri; karelia*
• Online Access: https://doi.org/10.5281/zenodo.6030072; http://zoobank.org/1DF5CB60-323F-4323-8193-E7A68862BDCB; http://treatment.plazi.org/id/03CF87D40972044AFD1D7D8DFD0FFB2F

Aprionus ymiri sp. nov. urn:lsid:zoobank.org:act: 1DF5CB60-323F-4323-8193-E7A68862BDCB Fig. 17 Diagnosis The male genitalic structures of Aprionus ymiri sp. nov. are as simple as characteristic of this species. The gonostylus is composed of two portions of the same size, a slightly convex portion basally and a flat portion apically; the gonostylar apex is narrowly rounded and provided with ordinary setae and setulae, no teeth or bristles (↓, Fig. 17B). The tegmen, which is tapered from the midlength to the narrowly rounded apex, is provided with 2 pairs of small, weakly contoured fingers, which do not intersect medially due to their rearward orientation (↓, Fig. 17A). A ventral plate is not apparent in this species. Etymology Ymir is the ancestor of all jotunn, a mythological race commonly glossed as the giants. Material examined Holotype SWEDEN: ♂, Öland, Borgholm, Skepparsäng Nature Reserve, 57.31° N, 17.04° E, dry pine forest, Malaise trap, M. and C. Jaschhof leg., 11 Jun.–21 Jul. 2015 (NHRS, no. CEC288). Paratype FINLAND: ♂, Karelia borealis, Lieksa, Patvinsuo NP, 63.08° N, 30.37° E, mature spruce forest with birch and aspen trees, MT, MCJ leg., 12 Jun.–7 Jul. 2004 (DEI, no. CEC 289). Differential diagnosis Aprionus ymiri sp. nov. lacks characters that, seen individually, would catch the observer’s attention, but the combination of characters as described above is species-specific. To avoid misidentification, this rarely found species should be compared with both Aprionus dispar Mamaev, 1963 and A. pseudispar Jaschhof, 1997 (see Jaschhof 1998: figs 151, 155), two much more common species. Other characters Body size 1.1 mm. HEAD. Postfrons setose. Eye bridge 2–3 ommatidia long dorsally. Postocular bristles: 10 in holotype, 7 in paratype. Neck of fourth flagellomere shorter than node, thick, simply hair-shaped translucent sensilla (Fig. 17C). Palpus short, 3-segmented in holotype, 2-segmented (but equally long) in paratype, basal segment somewhat swollen. WING. ApicR 1 2.5–3.0 times as long as Rs. LEGS. Claws ...