Larnaca (Larnaca) rufifronta Su, Duan & Shi, 2024

Su, Jie, Duan, Yanhao, Li, Yonghui & Shi, Fuming, 2024, Description of three new species of Larnaca Walker, 1869 (Orthoptera: Gryllacrididae: Gryllacridinae) from Xizang, China, Zootaxa 5453 (1), pp. 105-112 : 106-107

publication ID	https://doi.org/ 10.11646/zootaxa.5453.1.5
publication LSID	lsid:zoobank.org:pub:CB32DF86-7D96-4BE9-9723-8B2555227C7F
DOI	https://doi.org/10.5281/zenodo.11233476
persistent identifier	https://treatment.plazi.org/id/0427A774-9177-5836-FF6A-A19AFDDDE049
treatment provided by	Plazi
scientific name	Larnaca (Larnaca) rufifronta Su, Duan & Shi
status	sp. nov.

Treatment

Larnaca (Larnaca) rufifronta Su, Duan & Shi sp. nov., Chinese name üDz原ssdz

( Figs. 1 View FIGURE 1 ; 3A, B View FIGURE 3 ; 5C View FIGURE 5 )

Description. Female. Body medium and stout. Head. Face oval, nearly smooth. Eyes ovoid, slightly protruding forwards and outwards. Median ocellus distinct, lateral ocelli indistinct ( Fig. 1A View FIGURE 1 ). Fastigium verticis broad, width as about 2 times of antennal scape. Anterior margin of pronotum slightly projecting, posterior margin almost straight ( Fig. 1C View FIGURE 1 ). Wings. Tegmen reaching apex of abdomen, and hind wing almost as long as tegmen. Tegmen: ScA and ScP undivided, free throughout. R releases MA at basal third of tegmen and releases RS near the middle. RS temporarily fused with MA after releasing in left tegmen, while separated with MA in right tegmen. MP absent. CuA and CuP undivided, free throughout, with 3 anal veins ( Fig. 3A, B View FIGURE 3 ).

Legs. Fore coxa with 1 spine. Fore and middle femora unarmed on ventral surfaces; tibiae with 4 pairs of long spines and 1 pair of short apical spurs on ventral surfaces respectively. Hind femur with 8–9 outer spines and 4 inner spines on ventral surface; hind tibia with 6 outer spines and 5 inner spines on dorsal surface, bearing 1 pair of dorsal apical spurs and 2 pairs of ventral apical spurs, ventral surface also with 1 pair of pre-apical spurs. Abdomen. Lateral areas of second and third abdominal tergites with 1–2 rows of stridulatory pegs respectively. Seventh abdominal sternite broad, lateral margins triangularly protruding outwards, posterior margin with a small and triangular notch in the middle. Subgenital plate wider than long, gradually narrowing from base to apex, posterior margin rounded ( Fig. 1D View FIGURE 1 ). Cerci long and conical with apices rounded, feebly curved inwards (Fig, 1E). Ovipositor short, strongly curved dorsally, dorsal and ventral margins smooth, apex subacute ( Fig. 1F View FIGURE 1 ).

Coloration. Body red. Eyes black. Inner margin of antennal sockets and antennae black, while only flagella with annulate and yellow stripes. Apical area of mandible black. Median ocellus light yellow ( Fig. 1A View FIGURE 1 ). Disc of pronotum with 1 pair of indistinct and yellow spots on posterior third ( Fig. 1C View FIGURE 1 ). Wings nearly transparent with veins dark brown ( Fig. 4A, B View FIGURE 4 ). Fore and middle tibiae with spines and spurs dark brown which apical areas light. Spines on hind femur dark brown which with apices light and spines on hind tibia black.All abdominal tergites dark brown.

Male. Unknown.

Specimen examined. Holotype: ♀, Mêdog, Nyingchi, Xizang, China. 8 July, 2023, collected by Yonghui Li.

Measurements (mm). Body length: ♀ 28.1; pronotum length: ♀ 8.0; tegmen length: ♀ 19.7; hind femur length: ♀ 17.1; ovipositor length: ♀ 12.5.

Discussion. This new species differs from the known species of the genus Larnaca in the following: body red; lateral margins of female seventh abdominal sternite triangularly protruding outwards and posterior margin triangularly concave; female subgenital plate wider than long, gradually narrowing and posterior margin rounded.

Etymology. The name of this new species derives from its red face, Latin “ ruf- ” (red) and “ front- ” (frons).

Distribution. Xizang ( China).