Alloteratura (Meconemopsis) pentadactyla, Xin & Shi, 2019

Xin, Yarui & Shi, Fuming, 2019, Three new species of the genus Alloteratura Hebard, 1922 (Orthoptera: Tettigoniidae: Meconematinae: Meconematini) from China, Zootaxa 4651 (2), pp. 289-296 : 294-295

1. Alloteratura (Meconemopsis) pentadactyla s p. nov.

( Fig. 3 )

Description. Male. Body small. Fastigium verticis conical, apex bluntly rounded. Eyes nearly globular, protrud- ing forward. Apical segment of maxillary palpi shorter, about 1/3 length of subapical one, apex enlarged ( Fig. 3B ). Anterior margin of pronotum nearly straight, posterior margin angularly rounded, lateral lobe longer than high; humeral sinus distinct ( Fig. 3D ). Thoracic foramen large, oval, exposed.

Tegmina long, surpassing apices of postfemora, basal area comparatively wider, then gradually narrowing, apices rounded. Hind wings slightly longer than tegmina.

All femora without spines on ventral surface, apices of genicular lobes of profemora and mesofemora bluntly rounded. Procoxae with 1 short spine; protibiae with 4–6 spines on internal and external margins of ventral surface separately; tibial tympana open on both sides and oval. Mesotibiae with 2–6 spines on internal and external margins of ventral surface separately. Apices of genicular lobes of postfemora with 1 spine on both sides. ( Fig. 3C ), post- tibiae with 29–35 spines on internal and external margins of dorsal surface separately, 2 pairs of dorsal apical spurs and 1 pair of ventral apical spurs.

Tenth abdominal tergite nearly rectangle, longer than broad, the middle area of posterior margin concave ( Fig. 3G ). Cercus stout, the middle area curved dorsally, inner margin concave, apical area slender, apex obtusely rounded ( Fig. 3G ). Epiphallus posterior margin with rectangular notch in the middle, inner margins with five sclerotized spines directing dorsally ( Fig. 3I ). Basal half of subgenital plate with a longitudinal furrow in the midline; basal and apical areas broad while middle area slightly narrower, apical half broken.

Colouration. Body yellowish green (green when alive). Fastigium verticis dark. Eyes brown. Ventral surface of antennal scape dark brown. Dorsum of epicranium with a Y-shaped brown spot. Spines of legs blackish brown, tarsus green. Tegmina and the exposed parts of hind wings green.

Material examined. Holotype: ♂, Banlao, Cangyuan , Yunnan, 11 August, 2016, coll. Baojie Du.

Measurements (mm). Body: ♂ 11.7; pronotum: ♂ 3.7; tegmina: ♂ 16.3; postfemora: ♂ 10.6.

Distribution. China (Yunnan).

Discussion. The new species slightly resembles Alloteratura (Meconemopsis) curta Gorochov, 2008 , but it differs from the latter in: male cercus stout, the middle area curved dorsally, inner margin concave, apical area slender, apex obtusely rounded. Epiphallus posterior margin with rectangular a notch in the middle, lateral margins each with 5 sclerotized spines directing dorsally ( Fig. 3I ).

Etymology. The name of new species is derived from inner margins of epiphallus with five sclerotized spines directing dorsally. Greek pentadactyl - means five finger-shaped processes.

Figures

FIGURE 3. Alloteratura (Meconemopsis) pentadactyla sp. nov., male: A, D. pronotum: A. dorsal view; D. lateral view; B. maxillary palpus in lateral view; C. apex of genicular lobe of postfemur; F. subgenital plate in ventral view; E, G–H. apex of abdomen: E. lateral view; G dorsal view; H. ventral view; I. epiphallus.