Svistella malu He, 2021

Li, Shi-Yu, Peng, Hui-Ling & He, Zhu-Qing, 2021, Two new species of genus Svistella Gorochov, 1987 from China (Orthoptera Trigonidiidae: Trigonidiinae), Zootaxa 4949 (1), pp. 173-183 : 179-181

publication ID	https://doi.org/ 10.11646/zootaxa.4949.1.10
publication LSID	lsid:zoobank.org:pub:D5128BA7-B46C-4B69-B813-AF5D7D6A6C8C
DOI	https://doi.org/10.5281/zenodo.4663198
persistent identifier	https://treatment.plazi.org/id/C137BD61-FFFC-C13D-45FD-FE53FE1AFC59
treatment provided by	Plazi
scientific name	Svistella malu He
status	sp. nov.

Treatment

Svistella malu He sp. nov.

Figs. 1D View FIGURE 1 , 3G&H View FIGURE 3 , 5 View FIGURE 5

Holotype: male, CHINA, Yunnan Prov., Kunming, E 102.84, N 24.90, altitude 2000 m, 18-viii-2019, coll. He Zhu-Qing. (depository: East China Normal University , China) GoogleMaps

Paratype: 1 male, same data as holotype GoogleMaps ; 1 male, 22-ix-2016, other data same as holotype GoogleMaps ; 2 males & 2 females CHINA, Yunnan Prov., Tengchong, Houqiao , E 98.28, N 25.33, altitude 2000 m, 5-ix-2018, coll. Bi Wen-Xuan. GoogleMaps

Male: Body medium-sized for this genus ( Fig. 3G View FIGURE 3 ). Head: head little wider than anterior margin of pronotum ( Fig. 1D View FIGURE 1 , 3G View FIGURE 3 , 5B View FIGURE 5 ), vertex not flattened, frontal rostrum as wide as 1st antennal joint ( Fig. 5A View FIGURE 5 ), 3rd–4th segments of maxillary palpi elongated, 5th segment triangular. Pronotum: pronotum pubescent and posteriorly widened ( Fig. 5B View FIGURE 5 ), no lateral carina, anterior and posterior margin straight, fore tibia with oval tympanum on outer side ( Fig. 5C View FIGURE 5 ), but concave on inner side ( Fig. 5D View FIGURE 5 ), hind tibia with three pairs of dorsal spurs and five apical spurs, tegmen elongate and narrow, almost extending to apex of abdomen, mirror large and oval. Genitalia: Epiphallic lateral lobe long with one reverse tooth on outer side, and two minute teeth on the apex of each lateral lobe ( Fig. 5E&F View FIGURE 5 ).

Female: Similar to male, ovipositor straight and little curved.

Coloration: Overall color yellow. Frons brown with two red longitudinal bands from head to posterior margin of pronotum, one short red stripe behind each eye; lateral lobes of pronotum red. No mark on hind femur, but a small black spot on the ventral side of hind femur near apex.

Variation: Individuals from Kunming is larger than those from Tengchong. Two females were only collected from Tengchong, and they were all long wing type (2.5 times as long as forewing).

Comparison: This species can be distinguished from other species by the combination of the lack of black stripes on the hind femur, red bands on the lateral lobes of pronotum, and a small black spot on the ventral side of hind femur near apical part.

Measurements (in mm): Male: SZ 7.0–7.3, PR 1.1–1.2, FW 4.5–5.6, HF 4.4–4.9; female: SZ 5.9–6.0, PR 1.0–1.1, FW 5.4–5.5, HF 4.3–4.6, OV 2.0–2.1.

Distribution: China (Yunnan).

Etymology: The specific epithet malu is for the Chinese phonetic alphabet, which is the abbreviation of. It means “deliberately confuse”. The new species was misidentified as S. dubia previously by He Zhu-Qing.

Song: The song was stereotyped with 80 chirps/minute. Each chirp contained 17.4±0.55 pulses, and continued 0.45±0.015 s ( Fig. 6 View FIGURE 6 ).