Molanna truncata Ge, Peng & Sun, 2022
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publication ID |
https://dx.doi.org/10.3897/zookeys.1112.84475 |
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publication LSID |
lsid:zoobank.org:pub:2923FC2A-DA45-46D2-BB8B-F3B32BBD0448 |
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persistent identifier |
https://treatment.plazi.org/id/82EBA03B-56EC-42F7-83E4-3CD0F8D4D3BF |
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taxon LSID |
lsid:zoobank.org:act:82EBA03B-56EC-42F7-83E4-3CD0F8D4D3BF |
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treatment provided by |
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scientific name |
Molanna truncata Ge, Peng & Sun |
| status |
sp. nov. |
Molanna truncata Ge, Peng & Sun sp. nov.
Fig. 1A-F View Figure 1
Type material.
Holotype: 1♂, P.R. China, Si-chuan Province, Aba Prefecture, Jiu-zhaigou County, Jiu-zhaigou National Nature Reserve, Xi-niu-hai (Fig. 2 View Figure 2 ), 33°11'42"N, 103°53'46"E, alt. 2348 m, 7 VII 2019, leg. X.Y. Ge & Y. Wang (NJAU). Paratypes: 2 ♂, same data as holotype (NJAU).
Other specimens.
1♂ P.R. China, Si-chuan Province, Aba Prefecture, Jiu-zhaigou County, Jiu-zhaigou National Nature Reserve, Wu-hua-hai, 33°9'32"N, 103°52'55"E, alt. 2377 m, 20 VII 2014, leg. Y. Cao (NJAU). 2♂ P.R. China, Si-chuan Province, Aba Prefecture, Jiu-zhaigou County, Jiu-zhaigou National Nature Reserve, Lu-wei-hai, 33°13'18"N, 103°54'48"E, alt. 2299 m, 10 VII 2019, 19 VII 2014, leg. C.Y. Qin (NJAU).
Diagnosis.
The new species is similar to M. yaeyamensis Ito 2006 from Japan (Ishigaki and Iriomote islands), but can be differentiated by the following characters: (1) superior appendages in M. truncata sp. nov. in dorsal view have subrhomboid shape and basally bearing a slender thick seta, whereas M. yaeyamensis have subsquare superior appendages with no such thick setae in dorsal view; (2) in M. truncata sp. nov. mesal appendages have a subrectangular shape in lateral view, whereas in M. yaeyamensis mesal appendages have an ellipsoidal shape in lateral view; (3) inferior appendages with tiny triangular inner processes in M. truncata sp. nov., compared to long digitate inner processes (about 2/3 as long as dorsal process) in M. yaeyamensis ; and 4) ventral processes of inferior appendages in M. truncata sp. nov. in ventral view are somewhat stub-like and the lateral margin has a distally bristled, tiny process, which is both absent in M. yaeyamensis .
Description.
Specimens in alcohol with compound eyes black, thorax, abdomen and legs black to grayish white, without patterns. Body medium-sized, length 7.3-7.7 mm (N = 3). Head 0.95 mm long, about 1.75 times wider than length, ocelli absent. Front of vertex with subquadrate setal wart, posterolateral portion with two pairs of setal warts. Pronotum nearly trapezoidal, Pronotum anterior margin slightly sinuous, slightly concave anteromesad, posterior margin slightly concave, with one pair of setal warts.
Male genitalia: Abdominal segment IX in lateral view (Fig. 1A View Figure 1 ), irregularly pentagonal, convex anteriorly and posteriorly. Superior appendages in lateral view (Fig. 1A View Figure 1 ), trapezoidal, covered with many long and short setae, posterior margin straight; in dorsal view (Fig. 1B View Figure 1 ), subrhomboid, posterior margin irregularly serrated, each with slender thick setae at ventromesal base. In lateral view (Fig. 1A View Figure 1 ) mesal appendages subrectangular shape with narrow base and wider distal part, distal end slightly produced ventrad, with each side having 3-4 thick long setae, setose apically; in dorsal view, somewhat tubular, with base slightly thickened, with longitudinal membranous lobe mesally from base to apex. In lateral view, inferior appendages one-segmented, slightly shorter than mesal appendages, each divided into dorsal and ventral processes externally, and with a tiny triangular inner process (Fig. 1B View Figure 1 ); dorsal processes each with apex curved upwards in lateral view (Fig. 1B View Figure 1 ), sparsely setose, apical and lateral margins each sinuate, inner margins each arc-shaped in dorsal view; ventral processes in lateral view halfway shorter than dorsal processes, in ventral view (Fig. 1C View Figure 1 ) somewhat stub-like, lateral margin with distally bristled, tiny process. Phallus arched, with one pair of thin, long sclerites on apical half of dorsal surface (Fig. 1D View Figure 1 ).
Male wings: Forewings (Fig. 1E View Figure 1 ): Venation fairly complete, typical for the genus, without obvious marks. R2 very short jointed with R1, M 3-branched. M and Cu1 fused at very base, Cu2 not extended to margin, 1A and 2A merged at base and running to posterior margin and then curved anteriad to Cu1b. Hind wings (Fig. 1F View Figure 1 ): Venation of male hind wing much reduced, with band of dark setae running near midline.
Etymology.
The Latin adjective truncatus, - a, um refers to the truncate shape of the superior appendages posterior margin in lateral view.
Distribution.
China (Si-chuan).
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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