Rovnoholoneurus Fedotova et Perkovsky, 2017

Fedotova, Z. A. & 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), Vestnik Zoologii (Vestn. Zool.) 51 (1), pp. 23-30 : 24-25

publication ID

https://doi.org/ 10.1515/vzoo-2017-0004

DOI

https://doi.org/10.5281/zenodo.6454048

persistent identifier

https://treatment.plazi.org/id/7C0D1A6D-FFC8-FFF7-E6A6-AAB4FCB8FC65

treatment provided by

Felipe

scientific name

Rovnoholoneurus Fedotova et Perkovsky
status

gen. nov.

Genus Rovnoholoneurus Fedotova et Perkovsky View in CoL , gen. n.

urn:lsid:zoobank.org:act:CDD03952-9506-4EC9-841A-C28C89AF6F56

T y p e s p e c i e s: Rovnoholoneurus davidi Fedotova et Perkovsky View in CoL , sp. n.

D e s c r i p t i o n ( figs 1–4 View Fig View Fig View Fig View Fig ). 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 R 5 almost straight, slightly curved near apex, joining margin almost at wing tip; rs strong, short; vein m+rm slightly curved; Cu 2 strongly developed, positioned far from margin of wing, but fork indistinct, not fused, with two poorly visible folds near CuA 2; vein CuP 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 Holoneurus 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 Holoneurus 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 R 5 joining wing margin at apex, m+rm curved, vein rs very short, M 3 absent, CuA 2 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. Rovnoholoneurus davidi sp. n., R. miyae sp. n., R. laqueatus (Fedotova, 2005) , comb. n. (for Bryocrypta laqueata 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 Holoneurus . Gender masculine.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Cecidomyiidae

SubFamily

Porricondylinae

Tribe

Holoneurini

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