Brachineura prodolichata Jiao &amp; Bu 2018, sp. nov.
Creators: name: Jiao, Kelong
name: Wang, Hao
name: Wang, Yuanhong
name: Bu, Wenjun
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Cecidomyiidae
Brachineura
Brachineura prodolichata

description: <i>Brachineura prodolichata</i> Jiao &amp; Bu, sp. nov. (Figs 10–11) Diagnosis. The new species is characterized in the genus <i>Brachineura</i> by the unique combination of gonocoxite sharply arched inwardly at distal 1/4, and aedeagus prolonged, approximately two times as long as the length of gonocoxite. It is similar to <i>B. flabellata</i> Fedotova &amp; Sidorenko by gonocoxite sharply arched inwardly at sub-distal (Fig. 11). However, the new species differs by aedeagus prolonged, approximately two times as long as the length of gonocoxite and gonostylus normally shaped, approximately as long as 2/3 the length of gonocoxite (Fig. 11), while <i>B. flabellata</i> has aedeagus distinctly shorter than gonocoxite and gonostylus rudimentary, approximately as long as 1/3 the length and width of gonocoxite. Description. Adult. Body colour yellow. Body length 1.20–1.30 mm (<i>n</i> =4); wing length (measured from the base) 1.20–1.30 mm; wing width 0.50–0.60mm (<i>n</i> =4). Head. Eye bridge 5 facets long in the middle of vertex. 2nd male flagellomere as <i>sphaerica</i> in Fig. 1, with the node 2.10–2.20 times as long as wide and the neck 0.60–0.70 times as long as wide, 0.14–0.15 times length of node. Others as <i>B. sphaerica</i>. Thorax. Wing 2.10–2.20 times as long as wide. Others as <i>B. sphaerica</i>. Abdomen. First through sixth tergites with an irregular but mostly single, posterior row of setae; eighth sternite crescent. Others as <i>B</i>. <i>sphaerica</i>. Male genitalia (Figs 10–11). Gonocoxite slender, sharply arched inwardly at distal 1/4, with mediobasal lobes undeveloped and reduced to a pair of closely set setae, each inserted in a small, smooth and sclerotized prominence; gonostylus sub-conical, distinctly longer than the half length of gonocoxite, covered with a few setae and dense microtrichiae, toothed apically; cerci separated with a wide depression forming two broad lobes with a few long lateral setae; hypoproct a little shorter than cerci, emarginated widely forming two triangular lobes in the dorsal view; aedeagus sub-conical and prolonged, approximately two times as long as the length of gonocoxite, with the distal 1/3 constricted distinctly and the apex rounded. Female genitalia unknown. Material examined. Holotype. &amp;male;. China, Guizhou, Daozhen, Dasha River, Fairy Cave (also called as Xiannü Cave, 29.32°N, 107.40°E; elev. 600 m), 24.V.2004, leg. Weibing Zhu, Malaise trap, NKUCecid. No. BBC001. Paratypes. 3&amp;male;, same data as holotype, NKUCecid. No. BBC002–004. Distribution. China (Guizhou). Etymology. The specific name <i>prodolichata</i> means the aedeagus sub-conical and prolonged, approximately two times as long as the length of gonocoxite, with the distal 1/3 constricted distinctly and the apex rounded. <b>Funding</b> This study was supported by National Natural Science Foundation of China (31401995, J1210005) and Tianjiin Science &amp; Technology Development Fundation for Higher School (20140606). <b>Acknowledgements</b> We thank Dr. Jun Li and Ms. Yüxia Jiang (College of Life Sciences, Zhaoqing University, China) and Dr. Weibing Zhu (Shanghai Entomological Museum of Chinese Academy of Sciences, Shanghai, China) for collecting some specimens respectively from Heilongjiang and Guizhou, China. We are grateful to two anonymous reviewers whose comments greatly improved the manuscript.
description: Published as part of <i>Jiao, Kelong, Wang, Hao, Wang, Yuanhong &amp; Bu, Wenjun, 2018, Notes on the genus Brachineura Rondani (Diptera: Cecidomyiidae), with description of three new species from China, pp. 103-108 in Zoological Systematics 43 (1)</i> on pages 107-108, DOI: 10.11865/zs.201809, http://zenodo.org/record/5366020