Rovnoholoneurus Fedotova et Perkovsky 2017, gen. n.
Creators: name: Fedotova, Z. A.
name: Perkovsky, E. E.
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Cecidomyiidae
Rovnoholoneurus

description: Genus <i>Rovnoholoneurus</i> Fedotova et Perkovsky, gen. n. urn:lsid:zoobank.org:act: CDD03952-9506-4EC9-841A-C28C89AF6F56 T y p e s p e c i e s: <i>Rovnoholoneurus davidi</i> Fedotova et Perkovsky, <b>sp. n.</b> D e s c r i p t i o n (figs 1–4). Body slightly shorter than wing. Head elongate; eyes fused, wide bridge positioned on 2/3 part of head, occiput wide, rounded. Head basally with very long setae. Male antenna 2+11-segmented; female antenna 2+10–11-segmented; scape slightly enlarged apically; flagellomeres narrow, basal enlargement with constriction near base or middle, neck prolonged (in male and female), necks of distal flagellomeres much shorter than those of medial ones. Basal enlargement with whorls of long setae of different sizes, especially with long setae in basal, medial whorls. 10th flagellomere sometimes fused, consisting of two segments. Proximal flagellomeres slightly longer than distal ones. Last flagellomere ovoid or conical, without apical projection. All female flagellomeres bearing two rings of sensorial filae with apical, basal round loops. Mouthparts strongly elongated, wide. Palpus 4-segmented, longer than head, with segments slender, almost parallel-sided, 4th segment longest. Scutellum strongly swollen. Wing longer than body, evenly and very strongly widened distally; vein <i>R 5</i> almost straight, slightly curved near apex, joining margin almost at wing tip; <i>rs</i> strong, short; vein <i>m+rm</i> slightly curved; <i>Cu 2</i> strongly developed, positioned far from margin of wing, but fork indistinct, not fused, with two poorly visible folds near <i>CuA 2</i> ; vein <i>CuP</i> well developed. Legs with long setae ventrally. Abdomen slightly swollen near base, narrowed apically. Abdominal segments covered by very long setae. Ovipositor consisting of one pair of dorso-apical plates. C o m p a r i s o n. The new genus appears closely related to <i>Holoneurus</i> Kieffer, 1894 (Mamaev, 2001; Fedotova, Sidorenko, 2007), as evidenced by the body shape, 2+10–11-segmented antennae, long legs, and male and female flagellomere morphology. It differs from <i>Holoneurus</i> in the following characters: wide eye bridge, wing venation, elongated and swollen mouthparts, palpi very thin and much longer than head, different shape of flagellomeres, vein <i>R 5</i> joining wing margin at apex, <i>m+rm</i> curved, vein <i>rs</i> very short, <i>M 3</i> absent, <i>CuA 2</i> well developed and reaching near wing margin, male hind femur longer than tibia, tarsi very long (almost as long as or longer than femur+tibia), long setae on ventral side of legs, and smaller body. S p e c i e s i n c l u d e d. <i>Rovnoholoneurus davidi</i> <b>sp. n</b>., <i>R. miyae</i> <b>sp. n</b>., <i>R. laqueatus</i> (Fedotova, 2005), <b>comb. n.</b> (for <i>Bryocrypta laqueata</i> Fedotova in: Fedotova, Perkovsky, 2005). All species are only known from Rovno amber. E t y m o l o g y. The generic name is formed from a combination of Rovno and the gall midge generic name <i>Holoneurus</i>. Gender masculine.
description: Published as part of <i>Fedotova, Z. A. &amp; Perkovsky, E. E., 2017, New Genus And Species Of Gall Midges (Diptera, Cecidomyiidae: Porricondyinae, Holoneurini) From The Late Eocene Amber Of Olevsk (Zhitomir Region, Ukraine), pp. 23-30 in Vestnik Zoologii (Vestn. Zool.) (Vestn. Zool.) 51 (1)</i> on pages 24-25, DOI: 10.1515/vzoo-2017-0004, http://zenodo.org/record/6454042
description: {"references": ["Mamaev, B. M. 2001. The tribe Holoneurini in the Palearctic (Diptera, Cecidomyiidae). All-Russian Institute of Continuous Education in Forestry, Pushkino, 17, 1 - 11 [In Russian].", "Fedotova, Z. A., Sidorenko, V. S. 2007. New taxa of gall midges (Diptera, Cecidomyiidae, Porricondylinae) with reduced wing venation and flagellomeres from Russia. An International Journal of Dipterological Research, 18 (4), 235 - 277.", "Fedotova, Z. A., Perkovsky, E. E. 2005. New gall midges (Diptera, Cecidomyiidae) from the Rovno Amber: Subfamily Porricondylinae (Tribes Bryocryptini and Winnertziini) and subfamily Lasiopterinae (Tribes Brachineurini and Oligotrophini). Paleontologicheskii Zhurnal, 1, 42 - 53 [In Russian, English translation: Paleontological Journal, 39 (1), 41 - 51]."]}