Terrilimosina digitata, Cao & Dong & Yang, 2025
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publication ID |
https://doi.org/10.3897/zookeys.1241.146200 |
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publication LSID |
lsid:zoobank.org:pub:EC8E8D07-E010-4A66-8A75-AD26EDA22775 |
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DOI |
https://doi.org/10.5281/zenodo.15648543 |
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persistent identifier |
https://treatment.plazi.org/id/4D639924-7B17-544D-97C4-7878467040B3 |
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treatment provided by |
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scientific name |
Terrilimosina digitata |
| status |
sp. nov. |
Terrilimosina digitata sp. nov.
Figs 1 n View Figure 1 , 12 View Figure 12 , 13 View Figure 13
Type locality.
China: Xizang: Motuo, Mt. Nanzelama, 1930 m, 23. vi. 2018, Liang Wang.
Type material.
Holotype: China: - Xizang: • ♂; Motuo, Mt. Nanzelama ; 1930 m, 23.vi.2018; Liang Wang; in alcohol. ( EMCAU) . Paratype: • 1 ♂; Same data as holotype. ( EMCAU) .
Diagnosis.
Arista ~ 5.1–5.3 × as long as postpedicel. Mid and hind legs pale brown, femur (except base) darker; fore legs yellow. Syntergite 1 + 2 with a weakly sclerotized anteromedial patch (Fig. 12 b View Figure 12 ). Sternite 5 with triangular, densely setulose posteromedial process (Fig. 13 d View Figure 13 ). Surstylus with a digital anteroventral projection dorsally (with patch of long bristles internally).
Description.
Male (Fig. 12 a View Figure 12 ). Body length 1.6–1.8 mm, wing 1.4–1.6 mm. General color dark brown.
Eye height 2.2–2.3 × genal height at point of maximum eye height. One long vibrissa. Antenna pale brown, postpedicel darker; arista ~ 5.1–5.3 × as long as postpedicel.
Mid and hind legs pale brown, femur (except base) darker; fore legs yellow. Mid tibial chaetotaxy as in Fig. 12 c, d View Figure 12 , ventrally with one very short anteroventral bristle below middle and one longer apical bristle; hind basitarsomere with one short anteroventral bristle basally, one short anterodorsal bristle apically and one short robust ventral spine subapically. Wing (Fig. 1 n View Figure 1 ) infuscate, pale brownish; C-index = 1.1–1.2; r-m – dm-m: dm-m = 3.3–3.5. Halter with pale brown knob and paler stem.
Abdomen pale brown. Tergites and sternites sparsely and shortly setulose; tergites small and weakly sclerotized. Syntergite 1 + 2 with a weakly sclerotized anteromedial patch (Fig. 12 b View Figure 12 ). Sternite 5 with triangular, densely setulose posteromedial process (Fig. 13 d View Figure 13 ).
Male genitalia: Epandrium (Fig. 13 a, b View Figure 13 ) sparsely and shortly setulose. Cercus short, with rounded apex, a long bristle basally (Fig. 13 a, b View Figure 13 ). Surstylus with dense posterior setulae, a digital anteroventral projection dorsally (with patch of long bristles internally), a short anteroventral process ventrally (with a short comb-like row of bristles apically) and a stout tooth-like spine at posterior corner (Fig. 13 a, b View Figure 13 ). Basiphallus short, with blunt posterior process (Fig. 13 c View Figure 13 ). Postgonite widened from middle to apex, with a weakly sclerotized patch subapically (with 2 small setulae dorsally) (Fig. 13 c View Figure 13 ). Distiphallus with a broad dorsal part (with a small sclerite apically) covering slender ventral part with laterodorsal process subapically and sharp apex linking with two long membranous process (Fig. 13 c View Figure 13 ).
Female. Unknown.
Etymology.
The specific name is derived from the Latin digitatus (digital), and refers to the digital anteroventral projection on the surstylus.
Distribution.
China ( Xizang).
Comments.
Terrilimosina digitata sp. nov. resembles T. parasmetanai Su , from which it differs in having syntergite 1 + 2 with a weakly sclerotized anteromedial patch (Fig. 12 b View Figure 12 ), surstylus with a digital anteroventral projection dorsally (with patch of long bristles internally) and a stout tooth-like spine on the posterior corner and the postgonite with a weakly sclerotized dorsal patch (Fig. 13 a – c View Figure 13 ). Terrilimosina parasmetanai Su has a well sclerotized anteromedial syntergite 1 + 2, surstylus with a sharp anterior process and a well sclerotized postgonite (Fig. 25 a – c View Figure 25 ).
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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