Rhicnogryllus fallax He, 2021

Liu, Yi-Jiao & He, Zhu-Qing, 2021, Two new species of the genus Rhicnogryllus Chopard, 1925 from Hainan, China (Orthoptera: Trigonidiidae: Trigonidiinae), Zootaxa 5048 (4), pp. 594-598 : 596-597

Rhicnogryllus fallax He sp. nov. ffi似fldzä

Fig. 1C&D , 3A–F

Holotype: male, CHINA, Hainan, Jianfengling (E 109.27 N 22.86), 9-viii-2018, coll. He Zhu-Qing.

Paratypes: 6 males and 5 females, same data as holotype .

COI gene sequences: OK047279 , OK047280 , OK047281 & OK0472 from the holotype and 3 paratypes .

Description. Male. This species has many characteristics in common with R. xuandan ( Fig. 3A, C ). The characteristics below are evidently distinct. Pronotum: pronotum slenderer rather than with more obvious spots derived from shed setae. Genitalia: ectophallic apodeme and ramus are similar to Rhicnogryllus xuandan , joined by an arc-shaped and obviously sclerotized bridge, pseudepiphallus separated into two lateral parts and posterior apex of pseudepiphallus forming feebly sclerotized lophi with dentated inner margins, pseudepiphallic parameres triangular ( Fig. 3D, E ).

Female. Similar to male ( Fig. 3B ), ovipositor little curved ( Fig. 3F ), finely denticulate on both sides.

Coloration. Overall body colour light yellow appearing glossy red in dorsal view. Basal part of pronotum brownish red, other parts pale yellow with red parallel stripes. Cerci yellow. Ovipositor dark brown ventrally.

Measurement (mm). Male: SZ 4.17–4.31, PR 0.82–1.05, HF 3.52–3.77; Female: SZ 4.57–5.49, PR 0.82– 1.02, HF 3.85–4.58, OV 1.77–1.83.

Distribution. China (Hainan).

Etymology. The new specific name is derived from Latin fallax , meaning very similar to above species.

Figures

FIGURE 1. Rhicnogryllus spp. in life. A. R. xuandan male, B. R. xuandan female, C. R. fallax male, D. R. fallax female (photos by He Zhu-Qing).

FIGURE 3. Morphological features of Rhicnogryllus fallx He sp. nov. A, dorsal view of male; B, dorsal view of female; C, front view of face; D, male genitalia in dorsal view; E, male genitalia in ventral view; F, ovipositor.