Apterolarnaca (Bianigryllacris) tenuispinacia, Lu & Zhang & Bian, 2022
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publication ID |
https://doi.org/ 10.11646/zootaxa.5115.3.4 |
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publication LSID |
lsid:zoobank.org:pub:0660AAA2-4F4E-48E7-A66E-0B112BEE6754 |
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DOI |
https://doi.org/10.5281/zenodo.6511686 |
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persistent identifier |
https://treatment.plazi.org/id/03CF8D52-4010-FF83-FF7B-FE1FFD1CF8F0 |
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treatment provided by |
Plazi |
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scientific name |
Apterolarnaca (Bianigryllacris) tenuispinacia |
| status |
sp. nov. |
Apterolarnaca (Bianigryllacris) tenuispinacia View in CoL sp. nov.
DZIJXBdzfiȃ
Figures 6–8 View FIGURE 6 View FIGURE 7 View FIGURE 8
Description. Male. Body slightly smaller than other species. Face nearly smooth, with scattered impressed dots and shallow transverse riffles ( Fig. 6A View FIGURE 6 ). Fastigium verticis wider than scape. Ocelli indistinct ( Fig. 6A View FIGURE 6 ).
Anterior margin of pronotum slightly projected in the middle, posterior margin finely concave ( Fig. 6C–D View FIGURE 6 ); lateral lobes loner than high, anterior angle rounded ( Fig. 6B View FIGURE 6 ).
Fore coxae swollen, with 1 spine ( Fig. 6B View FIGURE 6 ). Fore and middle femora unarmed on ventral surfaces, hind femora with 6–9 internal and 1–3 external spines on ventral surface. Fore and middle tibiae with 5 pairs of ventral spurs, including 1 pair of apical ones; hind tibiae slightly curved ( Fig. 6E View FIGURE 6 ) with 4–5 internal and 5–6 external spines on dorsal surface, apices with 1 pair of dorsal and 2 pairs of ventral spurs.
Second and third abdominal tergite with two rows of stridulatory pegs respectively ( Fig. 6E View FIGURE 6 ). Eighth abdominal tergite prolonged, curved downwards ( Fig. 6F View FIGURE 6 ). Ninth abdominal tergite split along the midline, terminating into a slender spine on both sides, its apex directing forward and slightly inward ( Fig. 6H View FIGURE 6 ). Cerci conical and stout. Subgenital plate with V-shaped concavity on posterior margin, the lateral lobes terminating into a digitate process ( Fig. 6I View FIGURE 6 ). Styli absent.
Female. Subgenital plate nearly inverted trapezoidal in ventral view, the lateral margins of basal area triangular and curved dorsad, narrowing to apex, posterior margin almost straight with indistinct median concavity ( Fig. 7G View FIGURE 7 ). Ovipositor short and strongly curved upwards, dorsal and ventral margins smooth, apices obtuse ( Fig. 7E View FIGURE 7 ).
Coloration. Body yellowish brown, Face with 1 vertical stripe along the midline ( Figs. 6A View FIGURE 6 , 7A View FIGURE 7 ), which reaching dorsal surface of head and then extending to the apex of abdomen, the median band widened to semicircular at posterior margin of head ( Fig. 6C View FIGURE 6 ) and varying extension at the disc of pronotum ( Fig. 6C View FIGURE 6 ). Genae below eyes with 1 black vertical stripe on each side ( Fig. 6A View FIGURE 6 ). Clypeo-frontal suture with 1 pair of black spots ( Fig. 6A View FIGURE 6 ). Fastigium verticis with 1 black horizontal stripe, behind the stripe with 1 black spot on external side of the median black band ( Fig. 6A View FIGURE 6 ). Eyes black. Internal margin of antennal cavities and scape with black spots. Flagellum black. Maxillary palpi light brown. Anterior and ventral margins of pronotum black ( Fig. 6C View FIGURE 6 ). Apical areas of all femora, basal and apical areas of all tibiae, and spines of hind legs black. Apices of spines of ninth abdominal tergite black.
Material examined. Holotype: male, Jinping, Funing , Yunnan, July 23, 2021, coll. by Wei Bin, Xiaoyu Peng & Xun Bian . Paratypes: 1 male and 1 female, the other information as holotype. Other specimen: 1 female, the other information as holotype.
Measurements (mm). Male: BL 15.9–16.1, PL 3.6–3.8, HFL 8.1–8.3; Female: BL 16.8–21.3, PL 4.2–4.4, HFL 8.6–9.9, OvL 7.1–7.5.
Distribution. Yunnan (Funing).
Discussion. The new species differs from congeneric species in: face with 1 longitudinal black stripe along the middle ( Fig. 6A View FIGURE 6 , 7A View FIGURE 7 ), median black band of pronotal disc narrow, spines of male ninth abdominal tergite slender ( Fig. 6G View FIGURE 6 ), female subgenital plate longer than wide with posterior margin slightly arched ( Fig. 7G View FIGURE 7 ).
Etymology. Name derived from Latin tenu (tenuous) plus spin (spine), referring to the posterior margin of male ninth abdominal tergite with 1 pair of tenuous spines.
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.