Mecopoda hainanensis, 2019

Liu, Yun-Fei, Shen, Chu-Ze, Gong, Pu, Zhang, Ling & He, Zhu-Qing, 2019, Three new species of genus Mecopoda Serville, 1831 from China (Orthoptera: Tettigoniidae: Mecopodinae), Zootaxa 4585 (3), pp. 561-572 : 568-569

2.3 M. hainanensis He sp. nov.

Holotype: male, CHINA, Hainan, Changjiang , 11-viii-2018, coll. He Zhu-Qing.

Paratypes: 2 females, same data as holotype ; 2 males and 1 female, CHINA, Hainan, Qiongzhong, Limushan , 5-viii-2018, coll. He Zhu-Qing ; 1 male and 1 female, CHINA, Hainan, Qiongzhong, Wuzhishan , 7-viii-2018, coll. He Zhu-Qing.

Description. Male. Frontal rostrum with obvious transverse margin, 2.5-3 times as wide as 1st antennal joint. Pronotum saddle shaped, disc narrower in front, and widened with the posterior margin arc, lateral carinae with a little convex part in the middle, tympanum on both sides of fore tibiae with same size, legs long and spination, fore femora with 2-3 interior ventral spines, fore tibiae with four lines of spines, few pairs of spines on two lines of dorsal margin, but 6-7 pairs of spines on two lines of ventral margin, no spines on middle femora, middle tibiae with four lines of spines, few pairs of spines on two lines of dorsal margin, but 6-7 pairs of spines on two lines of ventral margin, hind femora with 4-6 interior ventral spines, hind tibiae with four lines of spines, many pairs of spines on two lines of dorsal margin, but only apical half margin with spines in hind tibiae. Forewing long with obvious mirror, hindwing little longer than forewing. The length of abdomen no longer than half of forewing ( Fig. 2H , Fig. 7A ).

Female. Similar to male, ovipositor long (only shorter than M. mamorata ) and straight with apical part little upwards curved ( Fig. 2I , Fig. 7B ).

Coloration. Nearly brown. Fore femora black and fore tibiae yellow. We checked all type specimens and found this colour contrast were very stable. 0-4 vague white spots on forewing. 3 small black spots on forewing in one individual.

Etymology. The species is named after Hainan Island.

Measurements (in mm). Male: SZ 56.09-60.46, PR 7.92-10.62, FW 47.54-50.76, HW 49.16-52.95, HF 38.42- 40.14; Female: SZ 61.29-63.40, PR 8.32-8.74, FW 51.76-55.95, HW 55.04-57.02, HF 45.50-48.80, OV 30.11- 33.09.

Distribution. China (Hainan).

Song. The first part of this species is very long, sometimes it lasts one hour in wild. The first part contains 0.66± 0.03s duration and 0.88± 0.08s interval. The second part is continuous with 0.136± 0.001s cycle repeatedly ( Fig. 5D ).

Note. It is an endemic species in Hainan Island ( Fig. 6 ). However, M. elongata elongata and M. niponensis are also distributed in Hainan. We suspect that these two species are spread by human activity, because we only collected them near farm, but never in natural reserve.

Figures

FIGURE 2. Mecopoda spp. from China. A-C: M. elongata elongata, DE: M. fallax sp. nov., FG: M. niponensis, HI: M. hainanensis sp. nov., J: M. mamorata sp. nov.

FIGURE 5. Calling songs of Mecopoda spp. from China. A: M. elongata elongata, B: M. niponensis, C: M. fallax sp. nov., D: M. hainanensis sp. nov.

FIGURE 6. Distribution of Mecopoda spp.

FIGURE 7. M. hainanensis in living condition. A: male, B: female.