Docosia japonica Ševčík & Burdíková & Kaspřák & Kurina 2020, sp. nov.
Creators: name: Ševčík, Jan
name: Burdíková, Nikola
name: Kaspřák, David
name: Kurina, Olavi
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Mycetophilidae
Docosia
Docosia japonica

description: Docosia japonica Kurina sp. nov.
urn:lsid:zoobank.org:act: 8D2164B1-0649-41BD-A65A-28434E54E1F4
Figs 3, 7B
Differential diagnosis
By the structure of the male terminalia, D. japonica sp. nov. belongs to a group of Palaearctic species, as defined for D. polyspina Kurina sp. nov., and resembles D. kerkini Kurina & Ševčík, 2011, D. polyspina sp. nov. and D. svanetica Kurina sp. nov. All species have a simple sickle- or crescent-shaped gonostylus with a row of spines on the medial margin. However, unlike the other species, D. japonica sp. nov. has four medially situated spines with the posteriormost one three times as long as the anterior three (D. kerkini has 12 subequal spines, D. polyspina sp. nov. has 3 subequal spines and D. svanetica sp. nov. has 5 spines with the anteriormost one at the apex of the gonostylus and two times as long as the other). The posteroventral margin of the gonocoxites resembles somewhat D. selini Kurina, 2006 described from Kazakhstan and subsequently found in the Chimgan area in Uzbekistan, but both species can be well distinguished by the shape of the gonostylus.
Etymology
The species is named after its occurrence in Japan.
Type material
Holotype
JAPAN • ♂; Nagano Prefecture, Ueda, Sugadaira Kogen near SMRC; 36°31′18″ N, 136°21′03″ E; 1330 m a.s.l.; 26 Apr.–3 May 2015; A. Blanke leg.; Malaise trap in grassland; in ethyl alcohol; terminalia in glycerol; one fore leg used for DNA extraction; GenBank: MT293057, MT293040, MT293074, MT293008; ZFMK-DIP-00067333.
Description
Male (n = 1)
MEASUREMENTS. Length of wing 3.8 mm.
HEAD. Black with numerous pale setae. Three ocelli, lateral ones almost touching compound eyes, separated from eye margins by less than half of their own diameter. Mouthparts light brownish. Palpus with basal three segments brown, 4 th segment light brown, 5 th segment yellowish. Scape dark brown, pedicel and all flagellomeres somewhat lighter. Flagellomeres cylindrical, about two times as long as broad.
THORAX. All parts of thorax blackish brown to black, with light setae. Scutum somewhat darker than lateral parts of thorax. Scutellum with numerous setae, marginal setae not arranged to distinct pairs. Antepronotum and proepisternum with pale bristles and short darker setae. Laterotergite and other pleural parts bare. Haltere pale yellow.
LEGS. All coxae, trochanters, femora and tibiae dark brown. Tibial spurs yellow. Tarsi dark yellow but seem brownish because of dense setae. Fore tibia apicomedially with semicircular tibial organ (anteroapical depressed area), without strong setae, only densely covered with fine yellow setulae.
WINGS. Hyaline, unmarked. Radial veins and r-m dark brown, other veins paler, m-stem faint. Sc, Rs,
m-stem, basal part of M 1, bm-m and basal one third of cu-stem asetose, other veins setose. Costa reaches to about one third of distance between R
5
and M
1
. Sc ends in R at level of beginning of m-stem. Posterior
fork begins well before anterior fork, approximately at level of basal fifth of r-m.
ABDOMEN. Dark brown with pale setae, first three segments with tergites laterally and sternites wholly yellowish.
TERMINALIA (Figs 3 A–E, 7B). Brown, with gonostyli and posteroventral area of gonocoxites yellow. Tergite 9 subquadrate, about as long as broad, posterior margin straight, with submarginal row of prominent setae about twice as long as other vestiture on tergite. Posteroventral margin of gonocoxites with quadrate, posteriorly slightly widening medial process having lateral aggregations of dark setae, medially separated by stripe of light setae. Gonostylus simple, tapering, apical half bent medially, with (1) long and pointed medial spine at medial margin, (2) row of three more anterior, blunt spines at medial margin, about three times shorter than posterior spine, (3) medial surface bearing minute setae, and (4) lateral surface bearing about 15 fine setae medially. Cercus with 13 combs of retinacula.
Female
Unknown.
Biology
Unknown.
description: Published as part of Ševčík, Jan, Burdíková, Nikola, Kaspřák, David & Kurina, Olavi, 2020, Five new Palaearctic species of Docosia (Diptera: Mycetophilidae), with updated molecular phylogeny of the genus, pp. 3-26 in European Journal of Taxonomy 717 on pages 10-13, DOI: 10.5852/ejt.2020.717.1095, http://zenodo.org/record/4043697