Dactylolabis (Dactylolabis) gracilistylus Alexander, 1926
publication ID |
https://dx.doi.org/10.3897/zookeys.1047.62033 |
publication LSID |
lsid:zoobank.org:pub:DA885E7A-3976-44EE-97F7-E6991912C71D |
persistent identifier |
https://treatment.plazi.org/id/89C74502-1E0C-578B-BD07-F038CC40A959 |
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Dactylolabis (Dactylolabis) gracilistylus Alexander, 1926 |
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Dactylolabis (Dactylolabis) gracilistylus Alexander, 1926
Figs 1-3 View Figures 1–3 , 4-7 View Figures 4–7
Dactylolabis gracilistylus Alexander, 1926: 372. Type locality: China: Zhejiang.
Diagnosis.
Wing yellowish hyaline, pterostigma brownish. Vein R3 as long as vein R2+3. Veins R4 and R5 relatively straight. Vein M1 as long as vein M1+2. Crossvein m-cu located before or near base of cell dm. Posterior margin of 9t with an M-shaped process and a shallow V-shaped notch at middle. Inner gonostylus slender, curved; gonocoxite very elongate and slender, more than twice as long as outer gonostylus. Aedeagus very big, with a shallow V-shaped notch at posterior margin.
Redescription.
Male (n = 3). Body length 8.2-8.5 mm, wing length 8.4-8.8 mm, antenna length 1.6-1.7 mm.
Head (Figs 1 View Figures 1–3 , 2 View Figures 1–3 ) dark brown with pale gray pollen. Vertex with long setae. Rostrum and palpus brown. Antenna brown.
Thorax (Figs 1 View Figures 1–3 , 2 View Figures 1–3 ) mostly dark brown with gray pollen. Pronotum rather long; mesonotum brownish, prescutum dark brown with pale gray pollen. Thoracic pleuron mostly dark brown with dense gray pollen. Legs: coxae brown with gray pollen; trochanters brownish-yellow; femora more yellow at base, brownish-yellow at tip; tibiae brownish-yellow; tarsi brown. Wing (Figs 1 View Figures 1–3 , 3 View Figures 1–3 ) yellowish hyaline, pterostigma more brownish; veins brownish. Venation: Rs long; R2 relatively oblique; R3 as long as R2+3; R4 and R5 relatively straight; M1 as long as M1+2; m-cu located before or near base of cell dm. Halter (Fig. 1 View Figures 1–3 ) length approximately 1.3 mm, halter stem yellowish; halter brownish.
Abdomen (Fig. 1 View Figures 1–3 ) elongated, tergites brownish-yellow, sternites dark brown.
Hypopygium (Figs 1 View Figures 1–3 , 4-7 View Figures 4–7 ) dark brown with brownish setae. Surface of 9t with plenty of long setae, posterior margin with an M-shaped process, medially with a shallow V-shaped notch; posterior margin of 9s with plenty of long setae; outer gonostylus cylindrical; inner gonostylus slender, curved; gonocoxite very elongate and slender, more than twice as long as outer gonostylus; aedeagus hyaline, very big, posterior margin with a shallow V-shaped notch.
Female. Similar to male ( Alexander 1926: 372).
Material examined.
1 male (CAU), China: Zhejiang, Yuyao, Siming Mountain , 1980.IV.27 , Jikun Yang. 1 male (CAU), China: Zhejiang, Qingyuan, Baishanzu , 1984.IV.19 , Hong Wu. 1 male (CAU), China: Zhejiang, Deqing, Mogan Mountain , 1991.IV.20.
Distribution.
China (Zhejiang).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Dactylolabis (Dactylolabis) gracilistylus Alexander, 1926
Gao, Shang, Zhang, Bing & Yang, Ding 2021 |
Dactylolabis gracilistylus
Alexander 1926 |