Velarifictorus dianxiensis, 2018

Chen, Guang-Yu, Shen, Chu-Ze, Liu, Yun-Fei, Liao, Wang & He, Zhu-Qing, 2018, A phylogenetic study of Chinese Velarifictorus Randell, 1964 based on COI gene with describing one new species (Orthoptera: Gryllidae: Gryllinae), Zootaxa 4531 (4), pp. 499-506 : 505

V. dianxiensis He sp. nov.

Holotype: 1 male, CHINA, Yunnan, Dehong, Yingjiang, Nabang , 25-iv-2018, coll. HE Zhu-Qing.

Paratypes: 1 male & 3 females, same data as holotype .

Description. Male. Body medium or small size for this subgenus in China. Head: frontal rostrum 2 times as wide as the 1st antennal joint, median ocellus as big as lateral ocelli and located litter lower than lateral ocelli, maxillary palpi normal with 3rd-5th joints long; thorax: disc of pronotum as wide as head, anterior margin slightly concave, posterior margin almost straight, rounded borders between disc and lateral lobes; tympanum long and on posterior margin only, forewing with somewhat truncated apical field, mirror with one curved vein. Hind tibia with 6 pairs of dorsal spines. Genitalia: apical of middle epiphallus short, but elongated vertically, ectoparamer large and broad, apical parts curved vertically ( Fig. 3 c-e). Female. Similar to male, but forewing short, ovipositor straight.

Coloration. Male: Body brown with yellow legs. Head: one curved white line link two lateral ocelli, a small white spot around median ocellus with a very thin and short line under it, anteclypeus black with middle and lower portion white, maxillary palpi white with black margins ( Fig. 3a ), six vertical white stripes on occiput, disc of pronotum with complex color pattern ( Fig. 1f ), lateral lobes black with lower margin white. Female. Similar to male, but facial color pattern little different, white line under median ocellus wider and a transverse white line above clypeofrontal suture, lateral portion of postclypeus white ( Fig. 3b ).

Etymology. dianxiensis means western Yunnan in Chinese language.

Measurements (in mm).

Male: body length 11.21-12.03, pronotum length 2.43-2.96, hind femur length 8.05-8.89, forewing length 6.49-7.07

Female: body length 12.47-13.68, pronotum length 2.28-3.10, hind femur length 8.74-9.28, forewing length 3.16-4.12, ovipositor length 8.51-9.54.

Distribution. China (Yunnan).

Note. Similar to V. ornatus , but (1) the color of the new species is little pale; (2) white line link two lateral ocelli obvious in the new species, but very thin or disappeared in V. ornatus ; (3) apical of middle epiphallus elongated vertically in the new species.

Figures

FIGURE 1. Ƒelarifictorus spp. in living condition. a, flavifrons; b, arisanicus; c, micado; d, aspersus; e, ornatus; f, dianxiensis; g, beybienkoi.

FIGURE 3. Facial morphology and male genitalia of Ƒ. dianxiensis. Sexual dimorphism in the frons: a, male; b, female. Male genitalia: c, dorsal view; d, ventral view; e, lateral view.