Ornebius apterus He, 2018

He, Zhu-Qing, Lu, Hui, Liu, Yu-Qing, Wang, Han-Qiang & Li, Kai, 2018, First report of a wingless species of Ornebius - a scaly cricket usually with winged males (Orthoptera: Mogoplistidae: Mogoplistinae), Zootaxa 4388 (4), pp. 586-591 : 588-590

Ornebius apterus He sp. nov. ( Figs. 1A,B )

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:501925

Holotype. male, CHINA, Guangdong, Shenzhen, 1-viii-2017, coll. Zhang Tao (East China Normal University, Biology of History Museum ) . Paratypes: 5 males 4 females, same data as holotype ( ECNU) .

Description. Male. Body flat with scales, pubescent on femur and cercus. Frontal rostrum swelling, little wider than scapus, 3rd–5th maxillary palpi normal. Pronotum longer than wide, without tegmina or wings and tympanum. Dorsal margin of hind tibia serrate in two rows of denticles about 21–25 teeth each.

Female. Similar to male, ovipositor slightly upcurved and smooth.

Coloration. Body brown. Scape and pedicel of antennae brown, flagellum yellow with a black segment across every 4–6 segments. Legs brown with yellow spots. Four small black spots on every dorsum of abdominal tergite, and long seta on every spot, cercus yellow, ovipositor brown.

Measurements. (in mm) body length: male 8.0–8.1, female 7.5–7.6; pronotum: male 2.2–2.4, female 2.3–2.4; hind femur: male 4.8–5.0, female 4.7–4.8; hind tibia: male 3.8–4.0, female 3.9–4.0; ovipositor 3.4–3.7.

Etymology. Species name apterus means that it has no wing.

Discussion. The male of this new species has no wing, which is different with all other Ornebius spp ( Fig. 1C–J ). However, molecular result proved that they were monophyletic. The new species is similar to Apterornebius kinabalu , but it does not have a spot between antennal segments and is smaller than A. kinabalu . It differs with Apterornebius chong in having normal maxillary palpi length. Further molecular studies on Aperornebius spp. are needed for determining if Apterornebius species are monophyletic with those of Ornebius .

Figures

FIGURE 1. Ornebius spp. A. Ornebius apterus sp. nov. male, B. Ornebius apterus sp. nov. female, C. O. polycomus male, D. O. polycomus female, E. O. formosanus male, F. O. formosanus female, G. O. kanetataki male, H. O. kanetataki female, I. O. infuscatus male and female, J. O. bimaculatus male and female. Photographed by Zhang Tao.