Homogryllacris unicolor, Lu & Zhang & Bian, 2022
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publication ID |
https://doi.org/ 10.11646/zootaxa.5200.3.6 |
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publication LSID |
lsid:zoobank.org:pub:3B840817-3A60-425A-B6D7-F333761A7ED2 |
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DOI |
https://doi.org/10.5281/zenodo.7260508 |
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persistent identifier |
https://treatment.plazi.org/id/0D511677-FFC5-2A25-FF6D-FF19FB5FFBBF |
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treatment provided by |
Plazi |
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scientific name |
Homogryllacris unicolor |
| status |
sp. nov. |
Homogryllacris unicolor sp. nov.
KOi同Dzae
Figures 1–2 View FIGURE 1 View FIGURE 2 , 6A View FIGURE 6
Diagnosis. The new species differs from Homogryllacris anelytra Shi, Guo & Bian, 2012 by: body almost unicolor ( Fig. 6A View FIGURE 6 ), yellowish brown, only dorsal surface of male eighth abdominal tergite with 1 black spot in middle ( Fig. 1E View FIGURE 1 ); the lateral lobes of male subgenital plate with acute apex at posterior margin ( Fig. 1I View FIGURE 1 ); the median concavity of female subgenital plate deeper ( Fig. 2F View FIGURE 2 ).
Description. Male. Body medium. Fastigium verticis approx. 1.7 times as broad as scape. Face with scattered impressed dots ( Fig. 1A View FIGURE 1 ). Median ocellus distinct. Pronotum with anterior margin slightly projecting, posterior margin nearly straight ( Fig. 1B View FIGURE 1 ); lateral lobes longer than high ( Fig. 1C View FIGURE 1 ). Fore coxae with 1 spine. Fore and middle femora unarmed on ventral surfaces, hind femora with 6–7 internal and 5–6 external spines on ventral surface. Fore and middle tibiae with 5 pairs of ventral spurs, including 1 pair of apical ones; middle tibiae dorsally with 1 internal spine; hind tibiae with 5–6 internal and 7–8 external spines on dorsal surface, apices with 1 pair of dorsal spurs, 1 pair of subapical ventral spurs and 2 pairs of ventral spurs. Wings reaching the middle area of mesonotum ( Fig. 1C View FIGURE 1 ). Second and third abdominal tergites with two rows of stridulatory pegs ( Fig. 1D View FIGURE 1 ). Eighth abdominal tergite prolonged, and curved backward and ventrad ( Fig. 1F View FIGURE 1 ). Ninth abdominal tergite conical in dorsal view, posterior margin with a semicircular concavity in middle ( Fig. 1E View FIGURE 1 ). Tenth abdominal tergite very short, hidden under the ninth abdominal tergite, and provided with a pair of long processes which reaching the middle area of subgenital plate ( Fig. 1G–I View FIGURE 1 ). Basal area of the process depressed, terminating into apex, apical area spine-shaped with acute tip ( Fig. 1G–H View FIGURE 1 ); crossed each other behind base, then running downward and outward, then curved forward, the apex directed dorsad which hook-shaped in lateral view ( Fig. 1F, H View FIGURE 1 ). Subgenital plate longer than wide, the lateral margins slightly convex at basal half, converging; posterior margin with a triangular concavity in middle, the lateral lobes triangular with the external margins slightly longer than the internal margins ( Fig. 1I View FIGURE 1 ); styli slender located on both sides of the subapical area of subgenital plate ( Fig. 1I View FIGURE 1 ).
Female. Seventh abdominal tergite longer than other sterna, basal area with 1 pair of copulatory depressions ( Fig. 2F View FIGURE 2 ). Intersegmental membrane between seventh sternite and subgenital plate about as long as subgenital plate provided with transverse folds ( Fig. 2F View FIGURE 2 ). The outlines of subgenital plate sub-trapezoidal, basal area wider than apical, the lateral margins curved dorsad, posterior margin with median concavity ( Fig. 2F View FIGURE 2 ). Ovipositor about 0.92 times as long as body, gradually upcurved, margins slightly and gradually narrowing towards tip, the subapical area faintly curved dorsad, tip acute ( Fig. 2G View FIGURE 2 ).
Coloration. Body yellowish brown ( Fig. 6A View FIGURE 6 ). Eyes black. Ventral margins of antennal cavities black ( Figs. 1A View FIGURE 1 , 2A View FIGURE 2 ).Dorsal surface of abdomen reddish, eighth abdominal tergite with 1 black spot in middle ( Fig. 1E View FIGURE 1 ). Ovipositor brown.
Material examined. Holotype: male, Tenghe Bridge, Lvchun , Yunnan, August 6, 2022, coll. by Xiangyi Lu and Xiaoyu Peng . Paratype: 1 female, other information as holotype.
Measurements (mm). Male: BL 20.8, PL 4.9, TL 1.5, HFL 10.9; Female: BL 24.3, PL 4.6, TL 1.2, HFL 11.9, OvL 22.0.
Distribution. Yunnan (Lvchun).
Etymology. The new species is named for the coloration of body almost yellowish brown.
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.