Carausius yingjiangensis, Ho, 2017

Ho, George Wai-Chun, 2017, Contribution to the knowledge of Chinese Phasmatodea V: New taxa and new nomenclatures of the subfamilies Necrosciinae (Diapheromeridae) and Lonchodinae (Phasmatidae) from the Phasmatodea of China, Zootaxa 4368 (1), pp. 1-72 : 51

Carausius yingjiangensis sp. nov.

(Figs. 211–212, 248–252)

Type. Holotype: ♀, Yingjiang , Dehong, Yunnan, China, X–XI.2016, Yang Wei-Zong ( HKES).

Diagnosis. Carausius yingjiangensis sp. nov. [ China (Yunnan)] is similar to C. yunnanensis sp. nov. [ China (Yunnan)], but can be separated by a pair of small horns on vertex of head, spine-like praeopercular organ on seventh abdominal sternum, posteriorly raised subgenital plate and a spine-like tubercle on all coxae of legs.

Description. Female (Figs. 211–212, 248–252). Large size. General colouration of body and legs dark brown. Body elongate and very slender, surface rough, with dense granulations.

Head: Rectangular, flattened, longer than wide, as long as pronotum. Covered with small dense granules. Vertex with a pair of small horns between compound eyes. Occiput flat, with indistinct median and lateral longitudinal furrows, posterior margin with indistinct swellings. Compound eyes small and rounded. Antennae generally lost, only scapus and pedicellus remained; scapus dorsoventrally flattened, oval, constricted basally, longer than pedicellus.

Thorax: Covered with small dense granules. Pronotum rectangular, paralleled to head, anterior margin truncate, posterior margin rounded, transverse and longitudinal sulci crossing after middle area. Mesonotum slender and elongate, parallel-sided, longer than combined length of pronotum, metanotum and median segment, with faint median longitudinal line, lateral margins also with small acute granules. Metanotum shorter than mesonotum, with a small horn-like elevation posterolaterally. Mesosternum with inconspicuous granulations, distinctly carinate mediolongitudinally. Mesopleurae, metapleurae and metasternum also interspersed with a few short spine-like tubercles or enlarged granules.

Abdomen: Cylindrical and rough, dorsal surface with small granules and short wrinkles, also interspersed with enlarged granules, ventral surface with two longitudinal rows of enlarged hump-like granules. Median segment rectangular, longer than wide, as long as pronotum. Second to sixth tergites almost equal in length. Sixth tergum with a pair of small elevations post-mediolaterally. Seventh tergum shorter than sixth tergum. Seventh sternum with spine-like praeopercular organ posteromedially, strongly elongated posteriorly, apex pointed; also with paired horn-like elevations posterolaterally. Eighth tergum longer than ninth tergum. Anal segment as long as ninth tergum, with a broad U-shaped emargination on posterior margin, posterolateral angles pointed. Supra-anal plate small, broader than long, posterior margin with two small indistinct emarginations. Subgenital plate boat-shaped, with a few small granules and short tubercles, posterior margin rounded and surpassing posterior apex of supraanal plate; posterior part strongly raised. Cerci short and small, apices not projecting over end of anal segment.

Legs: Slender and long. All coxae with a short spine-like tubercle. Profemora basally curved, shorter than mesonotum, posterodorsal and posteroventral carinae waved. Protibiae shorter than profemora, posterodorsal carina waved, posteroventral carina raised. Protarsi lost. Right midleg lost. Posteroventral carina of left mesofemur and metafemora waved, also with two small spines near apices. Medioventral carina of left mesotibia and metatibiae raised basally.

Male. Unknown.

Measurements in Table 24.

Distribution. China (Yunnan).

Notes. The antennae and right midleg of the female are lost and its measurements are insufficiently provided.

Etymology. The specific epithet of this new species is derived from the type locality, Yingjiang (Yunnan, China).