Usana concava, Long, Jian-Kun, Yang, Lin & Chen, Xiang-Sheng, 2015
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publication ID |
https://doi.org/ 10.11646/zootaxa.3947.4.2 |
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publication LSID |
lsid:zoobank.org:pub:51F5E38A-C7CC-4AB2-9630-099405A1D619 |
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DOI |
https://doi.org/10.5281/zenodo.6108409 |
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persistent identifier |
https://treatment.plazi.org/id/03B10C6C-FFCD-8D5A-3BCF-FC6742F3FD78 |
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treatment provided by |
Plazi |
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scientific name |
Usana concava |
| status |
sp. nov. |
Usana concava View in CoL sp. nov.
( Figs 5–6 View FIGURES 1 – 24 , 37–48 View FIGURES 37 – 48 )
Measurements. Body length (from apex of vertex to tip of forewing): male 6.6 mm (n = 1); forewing length: male 5.6 mm (n = 1).
Coloration. Yellowish brown to brown. Vertex along midline and lateral margins pale yellowish brown ( Figs 5 View FIGURES 1 – 24 , 37 View FIGURES 37 – 48 ). Frons yellowish brown with 2 rounded dark brown markings near the apex ( Fig. 39 View FIGURES 37 – 48 ). Clypeus, rostrum, genae and antennae generally pale yellowish brown. Eyes reddish brown, ocellus pale yellow ( Fig. 38 View FIGURES 37 – 48 ). Pronotum pale yellowish brown with 2 dark brown longitudinal stripes between lateral carinae, 3 dark brown longitudinal stripes at each lateral lobe and a dark brown longitudinal strips at each ventral lobe ( Figs 5–6 View FIGURES 1 – 24 , 37 View FIGURES 37 – 48 ). Mesonotum pale yellowish brown with 2 brown longitudinal stripes between lateral carinae and 2 brown longitudinal stripes outside each lateral carina ( Figs 5 View FIGURES 1 – 24 , 37 View FIGURES 37 – 48 ). Tegula yellowish brown with pale yellow along inner lateral margin ( Fig. 37 View FIGURES 37 – 48 ). Forewing brown with a dark marking respectively at the base of vein Cu1, near base of vein Cu1b, near apex of vein PCu and each apical cell along apical margin, all veins pale yellowish brown to yellowish brown ( Figs 5–6 View FIGURES 1 – 24 , 40 View FIGURES 37 – 48 ). Hindwing pale brown, veins brown. Legs pale yellowish brown and abdomen yellowish brown.
Head and thorax. Ratio of vertex at posterior margin width to length in midline 2.0. Ratio length of frons in midline to maximum width 1.2, ratio maximum width to width at apex 1.6. Ratio length of postclypeus in midline to length of frons 0.7. Ratio of apical to subapical segment of rostrum 1.6. Ratio length of pronotum in midline to length of vertex 0.7. Mesonotum in midline 6.8 times longer than pronotum, 2.7 times longer than pronotum and vertex combined. Forewing with ratio of length to maximum width 3.2. Hindwing with ratio of length to maximum width 1.9.
Male genitalia. Anal segment in dorsal view ( Fig. 42 View FIGURES 37 – 48 ) bulb-like, with apical margin with a small V-shaped notch in middle, ratio length to maximum width 1.4; anal stylet large, with apex exceeding apex of anal segment. Pygofer in lateral view ( Fig. 43 View FIGURES 37 – 48 ) with dorsal margin slightly shorter than ventral margin, anterior margin distinctly concave in middle, posterior margin in middle distinctly wavelike and convex, above with a finger-like process with a round, broad process beneath; medioventral process of pygofer in ventral view ( Fig. 44 View FIGURES 37 – 48 ) with apical 1/3 divided into 2 branches. Genital style with apex roundly convex, dorsal margin gives rise to 2 large sharp processes and a small blunt process; inner surface near anterior margin with a bent finger-like process, directed outwards ( Figs 45–46 View FIGURES 37 – 48 ). Aedeagus with phallobase slightly constricted in middle ( Figs 47–48 View FIGURES 37 – 48 ), dorsal lobe in dorsal view ( Fig. 47 View FIGURES 37 – 48 ) with apical margin incised in middle, lateral margins with apical 1/2 distinctly rolled-up, making middle area longitudinally concave ; ventral lobe in ventral view ( Fig. 48 View FIGURES 37 – 48 ) with both lateral sides from base to subapical distinctly ridged, with many scattered teeth, and subapical surface in middle gives rise to a long process with its basal 1/3 slightly narrow and apical margin roundly convex, directed basad; right lateral lobe from middle to subbasal much more sclerotized, the surface of which has several teeth. Phallic appendages with apexes distinctly intumescent, especially the left one, with some small spines interspersed on its outer apical surface ( Fig. 48 View FIGURES 37 – 48 ).
Type material. Holotype: ♂, CHINA, Yunnan: Lüchun, Huanglianshan National Natural Reserve (22°88'N, 102°25'E), tropical montane rain forest, 3–4 August 2012, Z.-M. Chang.
Etymology. The species name is derived from the Latin word “ concavus ”, which refers to the aedeagus with phallobase in dorsal view with dorsal lobe distinctly concave ( Fig. 47 View FIGURES 37 – 48 ).
Host plant. Unknown.
Distribution. China (Yunnan).
Remarks. Usana concava is similar to U. yanonis but differs from the latter in: frons with 2 rounded markings near the apex (without any marking in U. yanonis ); lateral lobe of pronotum in dorsal view with 3 longitudinal dark brown stripes (without stripe in U. yanonis ); genae without a dark brown marking beneath antennae (with a dark brown marking beneath antennae in U. yanonis ).
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.