Apterolarnaca (Bianigryllacris) trigonistis, Zhang & Pang & Bian, 2023
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publication ID |
https://doi.org/ 10.11646/zootaxa.5353.1.3 |
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publication LSID |
lsid:zoobank.org:pub:8F93674B-7ABB-4C9A-B1A2-0EB1DE9426F3 |
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DOI |
https://doi.org/10.5281/zenodo.10563523 |
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persistent identifier |
https://treatment.plazi.org/id/CB551A2F-B469-3D5E-FF34-F96BFEFBFCB5 |
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treatment provided by |
Plazi |
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scientific name |
Apterolarnaca (Bianigryllacris) trigonistis |
| status |
sp. nov. |
Apterolarnaca (Bianigryllacris) trigonistis View in CoL sp. nov.
ssṱoûãșŝ
Figure 1 View FIGURE 1
Description. Female. Body medium. Face ovoid, with impressed scattered dots; fastigium verticis about 2 times as wide as scape; fastigium frontis separated from fastigium verticis by a very fine suture ( Fig. 1A View FIGURE 1 ). Ocelli indistinct ( Fig. 1A View FIGURE 1 ).
Anterior margin of pronotum projected in middle, posterior margin faintly concave ( Fig. 1B View FIGURE 1 ); lateral lobes longer than high, anterior angle widely rounded, posterior angle arched ( Fig. 1C View FIGURE 1 ).
Fore coxae with 1 spine on each side. Fore tibiae with 4 pairs of ventral spurs and 1 pair of ventro-apical spurs; middle tibiae with 1 dorso-apical spine, 3 pairs of ventral spurs and 1 pair of ventro-apical spurs. Hind femora with 7 – 8 internal and 3 – 6 external spines on ventral surface; tibiae with 4 pairs of fine spines on dorsal surface, apices with 1 pair of dorsal spurs and 2 pairs of ventral spurs.
Second and third abdominal tergites with few, very minute stridulatory pegs ( Fig. 1D View FIGURE 1 ). Seventh abdominal sternite longer than proceeding sterna. Subgenital plate with straight basal margin, lateral margins faintly curved ventrad and narrowing to apex, apex acute ( Fig. 1G View FIGURE 1 ). Ovipositor short and strongly curved upwards, with dorsal and ventral margins smooth, its apices narrowly rounded ( Fig. 1F View FIGURE 1 ); with a pair of triangular, lateral lobes at base of ventral valvulae ( Fig. 1G View FIGURE 1 ).
Male. Unknown.
Coloration. Body yellow-brown. Face with 1 longitudinal black stripe. Front-clypeal sulcus black with 1 pair of black spots ( Fig. 1A View FIGURE 1 ). Fastigium verticis with narrow transverse black stripe. Internal margins of antennal cavities black ( Fig. 1A View FIGURE 1 ). Antennae with black rings on each segment. Dorsal surface of head with semicircular black stripe. Dorsal surface of body with narrow longitudinal black band. Pronotum with black margins. Lateral margins of mesonotum and metanotum black.
Measurements (mm). Female: BL 22.53, PL 5.04, HFL10.03, OvL 8.11.
Material examined. Holotype: female, Kengdi, Shouning , Fujian, July 17, 2023, coll. by Fanduo Cai.
Discussion. The new species differs from Apterolarnaca (Bianigryllacris) sicula Zhang & Bian, 2023 by dorsal surface of body with narrow black band along the midline; female subgenital plate with lateral margins curved ventrad and terminating, posterior margin acute; basal area of ovipositor with a triangular lobe on each side ( Fig. 1G View FIGURE 1 ).
Etymology. The new species is named for the basal area of ovipositor bearing 1 pair of triangular lateral lobes; from Latin trigon.
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.