Glolarnaca nigrimacula, Yang & Lu & Bian, 2021

Yang, Zizhon, Lu, Xiangyi & Bian, Xun, 2021, Contribution to the Glolarnaca Gorochov, 2008 (Orthoptera: Gryllacrididae: Hyperbaeninae) from China, Zootaxa 5048 (1), pp. 127-134 : 130-132

publication ID

https://doi.org/ 10.11646/zootaxa.5048.1.7

publication LSID

lsid:zoobank.org:pub:DB31E717-D38C-42FA-8655-D672C1D8998A

DOI

https://doi.org/10.5281/zenodo.5549271

persistent identifier

https://treatment.plazi.org/id/06471B60-FFF5-FFAD-4281-FE19351BFCD8

treatment provided by

Plazi

scientific name

Glolarnaca nigrimacula
status

sp. nov.

Glolarnaca nigrimacula View in CoL sp. nov.

-×球蟋•

Figures 4–6 View FIGURE 4 View FIGURE 5 View FIGURE 6 , 7D View FIGURE 7

Description. Body slender. Face ovoid, with impressed dots; fastigium verticis about 2.9 times as wide as scape ( Fig. 4A–B View FIGURE 4 ). Ocelli indistinct. Eyes small.

Anterior margin of pronotum straight, posterior margin widely arched; lateral lobes longer than high, posterior margin oblique without humeral sinus, anterior angle roundly angular, posterior angle arched, ventral margins undulated ( Fig. 4C View FIGURE 4 ).

Fore coxae with one spine. Fore and middle unarmed on ventral surfaces; hind femora with 5–6 internal and 11 external spines on ventral surface, the external spines obviously larger than the internal ones. Fore and middle tibiae with four pairs of spines and a pair of spurs on ventral surfaces; hind tibiae slightly curved with 5–6 internal and 5 external spines on dorsal surface, apices with 3 pairs of spurs.

Wings reaching the middle area of eighth abdominal tergite ( Fig. 6 View FIGURE 6 ). Tegmen ( Fig. 5 View FIGURE 5 ): Radius forked two branches in two thirds area; MA, CuA and CuP undivided, free throughout; with 4 anal veins.

Abdominal stridulatory pegs unobvious ( Fig. 4E View FIGURE 4 ). Eighth abdominal tergite prolonged. Ninth abdominal tergite globularly projected and curved downwards, in apical area with medial furrow, the lateral margin with a pair of processes, its apices connected each other and subacute ( Fig. 4H–J View FIGURE 4 ). Tenth abdominal tergite with 1 pair of tuberculate processes in the middle ( Fig. 4H, I View FIGURE 4 ). Cerci slender, conical. Subgenital plate wider than long, lateral margins slightly narrowing to apex, posterior margin with a median concavity. Styli inserted at the apical area of lateral lobes of subgenital plate.

Female. Unknown.

Coloration. Body brown, face with 3 pairs of black spots, of which 2 at clypeo-frontal suture, 2 at front area, the other 2 between antennal sockets ( Fig. 4A View FIGURE 4 ). Internal margins of antennal sockets black, the ventral margin extending to face forming 2 black spots ( Fig. 4A View FIGURE 4 ). Internal margin of scape and pedicel black. Fastigium verticis with 3 black spots, dorsum of head with 1 narrow longitudinal band in midline. Eyes black. Gena with black band which extending to dorsal area of head. Pronotum light brown with black spots as Fig. 4C View FIGURE 4 . Internal and external margins of all femora with dark brown bands, which extending the apical area of femora. Basal and apical area of tibiae with black ring, the apical area slightly lighter. Tegmina brown. All abdominal tergites black brown. Apices of hooks on male ninth abdominal tergite black.

Measurements (mm). BL: ♂ 17.8; PL: ♂ 4.2; TL: ♂ 13.2; HFL: ♂ 7.7.

Material examined. Holotype: male, Gulinjing, Maguan, Yunnan, 30 July 2021, coll. by Xiangjin Liu ; GXNU.

Distribution. Yunnan (Maguan, Lvchun).

Discussion. The new species differs from congeneric species in: body slender and black brown; posterior margin of pronotum without black strand, the lateral lobes of pronotum with large black spots; median concavity of posterior margin of male subgenital plate narrower and shallower than Glolarnaca kunyui sp. nov., but deeper than Glolarnaca hainanica and Glolarnaca sinica ( Fig. 7 View FIGURE 7 ). In Field guide to common insects of Huanglian Mountain ( Li et al., 2018), the ecological photo in 41p also displayed the new species.

Etymology. The new species is named for the color of head and pronotum with large black spots; from Latin nigr and macul.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Gryllacrididae

Genus

Glolarnaca

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