Orthotrichia choengthongi Malicky & Laudee, 2021
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publication ID |
https://dx.doi.org/10.3897/zookeys.1055.66536 |
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publication LSID |
lsid:zoobank.org:pub:0A16D86E-946F-4E26-98B5-FAB2AC33645F |
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DOI |
https://doi.org/10.5281/zenodo.7019476 |
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persistent identifier |
https://treatment.plazi.org/id/056A2710-8A8C-4439-BE95-7E45782B9C07 |
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taxon LSID |
lsid:zoobank.org:act:056A2710-8A8C-4439-BE95-7E45782B9C07 |
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treatment provided by |
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scientific name |
Orthotrichia choengthongi Malicky & Laudee |
| status |
sp. nov. |
Orthotrichia choengthongi Malicky & Laudee sp. nov.
Figure 1 View Figure 1
Type material.
Holotype. Male. Laos: Pakse Province: Champasak, Khonphapheng waterfall, Mekong River, 13°57'30"N, 105°59'14"E, elev. 64 m, 8.iv.2019, Pongsak Laudee. (PSUNHM). Paratypes: same data as the holotype; Laos, Pakse Province: Champasak, Don Khon, Mekong river, 13°57'45"N, 105°55'07"E, elev. 84 m, 8.iv.2019, Pongsak Laudee. 11 males: 3 males (PSUNHM), 3 males (CHM), 2 males (NMPC), 3 males (CUAC).
Diagnosis.
The new species is similar to Orthotrichia triton Malicky, 2008 from Borneo in the general shape of the male genitalia. However, it can be differentiated in that the shape of tergum X of Orthotrichia choengthongi Malicky & Laudee, sp. nov. is long and tubular, pointed apically and curved inwards then abruptly upwards in dorsal view; however, is stout basally then curved slightly downward in O. triton . Moreover, the united inferior appendages of the new species are collectively trilobed; but bilobed in O. triton .
Description.
Adult, male, length of each male forewing 1.6.-2.0 mm (n = 11); color in alcohol of head, thorax, forewings, abdomen, and legs light brown.
Male genitalia extremely asymmetric (Fig. 1A-E View Figure 1 ). Tergum IX broadly rounded in dorsal and ventral views (Fig. 1A, D View Figure 1 ); somewhat triangle, anterior margin rounded, with hooked posterodorsal process in left lateral view (Fig. 1B View Figure 1 ); somewhat triangle in right lateral view (Fig. 1C View Figure 1 ). Posterolateral processes of tergum IX asymmetrical; left process shorter, bilobed, each lobe pointed apically; right process longer, tubular, bifurcate apically with acute apices in dorsal view (Fig. 1A View Figure 1 ); in left lateral view, directed caudad, short, pointed apically (Fig. 1B View Figure 1 ); in right lateral view (Fig. 1C View Figure 1 ), somewhat triangular, short. Dorsal spine of tergum IX lanceolate, curved upward, pointed apically in dorsal view (Fig. 1A View Figure 1 ). Tergum X long tubular, pointed apically, curved mesad then abruptly upward in dorsal view (Fig. 1A View Figure 1 ); shaped nearly as isosceles triangle, pointed apically in right lateral view. United inferior appendages trilobed, asymmetrical, each lobe shaped as isosceles triangle and acute apically, with middle lobe smallest and closer to right lobe in ventral view, left lobe thicker than right one in lateral view (Fig. 1B, C View Figure 1 ). Pair of tubular processes of inferior appendages long, slender, each with long seta apically (Fig. 1B-D View Figure 1 ). Paramere spine long, acute apically in ventral view (Fig. 1D View Figure 1 ). Phallus, long, enlarged and bilobed apically, with titillator encircling segment 1 time tightly against it near the middle (Fig. 1E View Figure 1 ).
Etymology.
The species epithet honors Asst. Prof. Dr Suchart Choengthong, Prince of Songkla University, Surat Thani Campus.
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.