Apterolarnaca (Bianigryllacris) biprocera Zhang & Bian, 2023
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publication ID |
https://doi.org/ 10.11646/zootaxa.5343.6.1 |
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publication LSID |
lsid:zoobank.org:pub:E526459C-094A-4CA7-AE1B-3DF44F64C09E |
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DOI |
https://doi.org/10.5281/zenodo.8349387 |
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persistent identifier |
https://treatment.plazi.org/id/03EC3E00-FFA6-F73F-61F2-BB43FE55BDFC |
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treatment provided by |
Plazi |
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scientific name |
Apterolarnaca (Bianigryllacris) biprocera Zhang & Bian |
| status |
sp. nov. |
Apterolarnaca (Bianigryllacris) biprocera Zhang & Bian sp. nov. AEẋflüdzḋă
Figures 1–2 View FIGURE 1 View FIGURE 2
Description. Male. Body medium. Fastigium verticis about two times as wide as scape, projecting forwards; fastigium frontis separated from fastigium verticis by a wide suture; face conically swollen in lateral view with sparse dots ( Fig. 1C View FIGURE 1 ). Ocelli indistinct. Pronotum with anterior margin slightly projecting, posterior margin faintly concave ( Fig. 1B View FIGURE 1 ); lateral lobes longer than high ( Fig. 1C View FIGURE 1 ). Fore coxae swollen with 1 spine ( Fig. 1C View FIGURE 1 ). Fore and middle femora unarmed on ventral surfaces, hind femora with 3–8 internal and 2–5 external spines on ventral surface ( Fig. 1D View FIGURE 1 ). Fore and middle tibiae ventrally with 4 pairs of spurs and 1 pair of apical spurs, middle tibiae with 1 internal spine on dorsal surface. Hind tibiae with 2–3 pairs of spines on dorsal surface, apices with 1 pair of dorsal spurs and 2 pairs of ventral spurs.
Second and third abdominal tergites each with two rows of stridulatory pegs ( Fig. 1D View FIGURE 1 ). Posterior margin of eighth abdominal tergite arched in the middle area ( Fig. 1G View FIGURE 1 ). Posterior margin of ninth abdominal tergite prolonged to ventrad, furrowed in middle area, ventral angles extended into a curved spine which S-shaped in apical view, its tip acute and curved downward and forward. Tenth abdominal tergite with 1 pair of conical processes ( Fig. 1G View FIGURE 1 ). Subgenital plate transverse, furrowed along the midline, swollen on both sides ( Fig. 1I View FIGURE 1 ); posterior margin heartshaped concave, the lateral lobes prolonged into digitiform lobes ( Fig. 1H View FIGURE 1 ).
Female. Seventh abdominal sternite broad, posterior margin projecting in middle. Subgenital plate longer than wide; basal one-fifths areas of lateral margins wide, then contracted and narrowing to apex, posterior margin angular ( Fig. 2H View FIGURE 2 ). Ovipositor short, apical half gradually upcurved; dorsal and ventral margins smooth, apices obtuse ( Fig. 2G View FIGURE 2 ).
Coloration. Body yellow brown, darker. Fastigium verticis with transverse black stripe which suited the wide suture between fastigium frontis and fastigium verticis ( Figs. 1A View FIGURE 1 , 2A View FIGURE 2 ). The conical swelling of face black which extending into the posterior margin of pronotum, in dorsal surface of head forming a semicircular black pattern, in the disc of pronotum which widened at anterior, middle and posterior areas. Genae with black longitudinal stripes below eyes. Thoracic tergites with black margins ( Figs. 1B View FIGURE 1 , 2B View FIGURE 2 ). Apices of fore and middle femora black. Basal and apical areas of all tibiae black, and dorsal spines of hind tibiae black.
Material examined. Holotype: male, Anjiangping, Lingui , Guangxi, October 3, 2022, coll. by Xiangyi Lu, Qianwen Zhang and Huan Meng . Paratypes: 1 male, Anjiangping, Lingui , Guangxi, August 4, 2022, coll. by Siyu Pang, Pinying Rong and Huan Meng ; 1 male, Anjiangping, Lingui , Guangxi, October 2, 2022, coll. by Xiangyi Lu, Qianwen Zhang and Huan Meng ; 1 female, Anjiangping, Lingui , Guangxi, July 13, 2022, coll. by Xiangyi Lu, Qianwen Zhang and Huan Meng ; 1 female, Anjiangping, Lingui , Guangxi, August 6, 2022, coll. by Xiangyi Lu, Qianwen Zhang and Huan Meng ; 1 female, Anjiangping, Lingui , Guangxi, October 2, 2022, coll. by Xiangyi Lu, Qianwen Zhang and Huan Meng .
Measurements (mm). Male: BL18.2–19.3, PL 3.6–4.3, HFL 8.2–8.6; Female: BL 19.0–20.4, PL 4.1–4.4, HFL 8.4–8.9, OvL 5.9–6.3.
Distribution. Guangxi (Lingui).
Discussion. The new species differs from Apterolarnaca (Bianigryllacris) parvospinus (Liu & Yin, 2002) by the apical area of spines of male tenth abdominal tortile ( Fig. 1E–F, H–J View FIGURE 1 ), its apices directing downward and forward, tenth abdominal tergite with 1 pair of conical processes ( Fig. 1G View FIGURE 1 ), female subgenital plate longer than wide with posterior margin narrowly rounded ( Fig. 2H View FIGURE 2 ).
Etymology. The new species drives from Latin bi and procer referring to the tenth abdominal tergite with 1 pair of conical processes.
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.