Mesonemoura dilatata Du & Ji, 2015
publication ID |
https://doi.org/ 10.1653/024.098.0122 |
persistent identifier |
https://treatment.plazi.org/id/03FC87C8-FFF2-0F1F-FCB5-B442FAD480CD |
treatment provided by |
Felipe |
scientific name |
Mesonemoura dilatata Du & Ji |
status |
sp. nov. |
Mesonemoura dilatata Du & Ji View in CoL , sp. nov. ( Figs. 1–4 View Figs )
MATERIAL EXAMINED
HOLOTYPE 3, CHINA, Tibet, Leiwuqi county, Jiasangka township , 25-VI-2009, N 31° 52.494' E 96° 17.573', 3,722 m asl, Leg. Qian Yu-Han GoogleMaps . PARATYPES, 2 33, the same data as holotype.
1 School of Horticulture and Plant Protection and Institute of Applied Entomology, Yangzhou University, Yangzhou 225009, China
2 Department of Horticulture, Suqian College, Suqian 223800, China
MALE
Head and antennae dark brown; pronotum dark brown, transverse oblong, with rugosities. Wings hyaline, veins brown. Legs brown, the middle of femora slightly brown.
Forewing length 6.3-6.5 mm, hind wing length 5.3-5.4 mm. Tergum 9 ( Fig. 2 View Figs ) slightly sclerotized, with a small, asymmetrical notch mid-posteriorly, bearing several spinules posteriorly. Tergum 10 sclerotized, with several spinules each side of middle line. Hypoproct ( Fig. 1 View Figs ) broad basally, abruptly tapering toward the apex; vesicle long, more than half length of hypoproct, length 3 × width, ventral membranous, but slightly sclerotized dorsally, sclerotized laterally. Paraprocts ( Figs. 1, 3 View Figs ) divided into 3 lobes; inner lobe small, slightly sclerotized, fused with middle lobe; median lobe broad basally, slightly sclerotized, branched into 2 portions, inside portion of median lobe membranous, bearing many hairs, fused with outer lobe, another portion sclerotized, slender, short- er than membranous portion; outer lobe slender, sclerotized, basal part recurved along basal of cerci, other part fused with membranous portion of median lobe. Epiproct ( Figs. 2, 4 View Figs ) long and narrow; dorsal sclerite mostly slightly sclerotized, apical portion membranous, extending over onto ventral sclerite; lateral sclerite slender, sclerotized; ventral sclerite slightly sclerotized, broad basally, tapering towards apex, apical portion inserted between folds of dorsal sclerite, the apex extended distally forming a long flagellum; the flagelliform projection sclerotized, slender, with a swollen membranous apex, length of the flagellum about 1.5 × length of the epiproct; epiproct ventral sclerite with 2 rows of spinules.
FEMALE
Unknown.
DISTRIBUTION
CHINA (Tibet Autonomous Region).
ETYMOLOGY
The Latin “ dilatata ” refers to the flagelliform projection with a swollen membranous apex.
REMARKS
This species is characterized by the flagellum of the epiproct being long and curved, forming a swollen membranous apex. The new species is close to M. spiroflagellata ( Wu 1973) in having the median lobe branched into 2 portions. But in M. spiroflagellata , the sclerotized portion is equal to the membranous portion, ventral sclerite of epiproct without spines, and the apex of flagellum narrow.
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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