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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