Apterolarnaca (Bianigryllacris) spiculoproceris, Zhang & Lu & Bian, 2022
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publication ID |
https://doi.org/ 10.11646/zootaxa.5178.4.5 |
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publication LSID |
lsid:zoobank.org:pub:E1102D72-D95D-4995-B9B7-484B9B8634C4 |
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DOI |
https://doi.org/10.5281/zenodo.7037092 |
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persistent identifier |
https://treatment.plazi.org/id/237D87D9-FFEE-FF95-0B8C-FE72FEBFFE68 |
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treatment provided by |
Plazi |
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scientific name |
Apterolarnaca (Bianigryllacris) spiculoproceris |
| status |
sp. nov. |
Apterolarnaca (Bianigryllacris) spiculoproceris View in CoL sp. nov.
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Figures 3 View FIGURE 3 , 4C–D View FIGURE 4
Diagnosis. The female subgenital plate transverse, with posterior margin truncate ( Fig. 3J View FIGURE 3 ), the apico-lateral angles spine-shaped ( Fig. 4C–D View FIGURE 4 ).
Description. Female. Body small. Fastigium verticis wider than scape. Face with very fine transverse “riffles” and sparse punctures; fastigium frontis separated from fastigium verticis by a very fine suture ( Fig. 3A View FIGURE 3 ). Ocelli indistinct.
Pronotum with anterior margin arched, posterior margin nearly straight ( Fig. 3B View FIGURE 3 ); lateral lobes longer than high, anterior angle rounded, posterior angle slightly extending downwards ( Fig. 3C View FIGURE 3 ).
Fore coxae with 1 spine. Fore and middle femora unarmed on ventral surfaces, middle femora with 1 apicointernal spine, hind femora with 11–14 internal and 4 external spines on ventral surface. Fore and middle tibiae with 5 pairs of ventral spurs, including 1 pair of apical ones; hind tibiae with 5–6 internal and 6 external 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. 3E View FIGURE 3 ). Subgenital plate inverted trapezoidal in ventral view ( Fig. 3J View FIGURE 3 ), wider than long, the apico-lateral angles spine-shaped and curved dorsad ( Fig. 3G–H View FIGURE 3 ). Ovipositor short and strongly curved upwards, with dorsal and ventral margins smooth, its apices obtuse ( Fig. 3H View FIGURE 3 ); with a pair of ovoid, lateral sclerites at base of ventral valvulae, which projecting outwards ( Fig. 3J View FIGURE 3 ).
Male. Unknown.
Coloration. Body yellowish brown. Ventral margins of antennal cavities blackish, face with 1 pair of blackish spots at fronto-clypeal suture. Eyes blackish brown. Doral surface of head with one large black spot behind antenna on each side, between area of antennae with irregular black spot along the midline ( Fig. 3B View FIGURE 3 ). Margins of pronotum blackish ( Fig. 3C View FIGURE 3 ). Apical areas of femora blackish, basal and apical areas of tibiae of all legs blackish; dorsal spines of hind tibiae black ( Fig. 3D View FIGURE 3 ). Dorsal surface of abdominal tergites with longitudinal blackish band along the midline.
Material examined. Holotype: female, Wutaishan, Leye , Guangxi, August 29, 2021, coll. by Xiangyi Lu.
Measurements (mm). Female (Holotype): BL 21.6, PL 3.7, HFL 9.5, OvL 6.3.
Distribution. Guangxi (Leye).
Etymology. The new species name refers to the female subgenital plate with a spinous process at each apicolateral angle of posterior margin.
Discussion. The new species is similar to Apterolarnaca (Bianigryllacris) xinganensis Lu, Zhang & Bian, 2022 and Apterolarnaca (Apterolarnaca) truncatoloba (Li & Liu, 2015) in coloration, but differs from them by: posterior margin of female subgenital plate almost straight ( Fig. 3J View FIGURE 3 ), the apico-lateral angles spinous projected ( Fig. 4C–D View FIGURE 4 ). While Apterolarnaca (Bianigryllacris) xinganensis Lu, Zhang & Bian, 2022 , posterior margin of female subgenital plate widely arched with middle area slightly projected ( Lu et al., 2022: Fig. 11E). The female subgenital plate of Apterolarnaca (Apterolarnaca) truncatoloba (Li & Liu, 2015) has rounded apico-lateral angles on posterior margin ( Fig. 4B View FIGURE 4 ).
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.