Formosatettix cliva Deng, 2023

Deng, Wei-An, Luo, Jie-Ling, Huang, Chao-Mei & Lin, Li-Liang, 2023, Review of the genus Formosatettix Tinkham (Orthoptera: Tetrigidae) with description of new taxa, new synonymy and an updated key to species, Zootaxa 5228 (3), pp. 201-243 : 211-213

publication ID

https://doi.org/ 10.11646/zootaxa.5228.3.1

publication LSID

lsid:zoobank.org:pub:CF7244F1-F2FA-4435-BD96-5492BC1AF6B8

DOI

https://doi.org/10.5281/zenodo.7542054

persistent identifier

https://treatment.plazi.org/id/3922878E-B762-7951-FF7D-F79CFD85D789

treatment provided by

Plazi

scientific name

Formosatettix cliva Deng
status

sp. nov.

4. Formosatettix cliva Deng , sp. nov. ( Figs. 5 View FIGURE 5 , 24D View FIGURE 24 , 25A View FIGURE 25 )

Notes. Formosatettix cliva Deng was proposed in ( Deng’s, 2016) PhD Dissertation, which has not been published according to the criteria of availability ( ICZN 1999: Art. 8.1). The name F. cliva Deng is made available in this paper.

Description. Female. Medium size, short, body surface smooth and interspersed with granules.

Head. Head and eyes not exserted above pronotal surface ( Fig. 5B View FIGURE 5 ). Fastigium of vertex short; in dorsal view, width of vertex between eyes 2.2 times width of compound eye ( Fig. 5C View FIGURE 5 ); anterior margin of fastigium slightly arcuate and slightly surpassing anterior margin of eye; median carina visible anteriorly; lateral margins turned backward; vertex uneven with paired fossulae. In lateral view, frontal ridge and vertex forming a right angle; frontal costa straight above lateral ocelli ( Fig. 5D View FIGURE 5 ), protruded anteriorly and broadly rounded between antennal grooves. In frontal view, frontal costa bifurcated above lateral ocelli, longitudinal furrow divergent between antennae, width of longitudinal furrow of frontal ridge narrower than antennal groove diameter ( Fig. 5E View FIGURE 5 ). Antennae short, filiform, antennal grooves inserted below inferior margins of compound eyes, 14-segmented, the 9th and 10th segment are the longest, about 4–5 times longer than its width. Eyes globose, lateral (paired) ocelli located in middle of compound eye height.

Thorax. Pronotum distinctly compresso-elevated, pronotal surface smooth and interspersed with dense granules ( Fig. 5A View FIGURE 5 ). In dorsal view, anterior margin of pronotum acute angle protruding and reaching anterior margin of vertex; lateral carinae of prozona parallel and inconspicuous; humeral angle and interhumeral carina absent; hind pronotal process broad and short, almost reaching middle of hind femur and its apex obtuse rounded. In profile, median carina of pronotum compressed, strongly elevated and arch-like; lower margin of hind process curved, external lateral carinae of metazona nearly straight, width of infrascapular area is 1.3 mm. Posterior angles of lateral lobes turned downwards, apex of posterior angles obtuse rounded, posterior margins of lateral lobes of pronotum only with ventral sinus and tegminal (upper) sinus absent. Tegmina and hind wings invisible (vestigial hidden under pronotum).

Legs. Fore and middle femora slightly compressed, margins finely serrated, with carinated, ventral margins straight ( Fig. 5F – G View FIGURE 5 ). Hind femora robust and short, 2.6 times as long as wide; with carinated, margins finely serrated ( Fig. 5H View FIGURE 5 ); antegenicular denticles right angle and genicular denticles acute. Outer side of hind tibia with 6–7 spines, inner side with 5–6 spines. First segment of posterior tarsi longer than third, three pulvilli of first segment of posterior tarsi are increased in turn, apices of all pulvilli obtuse.

Abdomen. Ovipositor narrow and long, length of upper valvulae 3.0 times its width, upper and lower valvulae with slender saw-like teeth. Length of subgenital plate nearly equal to its width, posterior margin of subgenital plate with three teeth.

Coloration. Body dark brown; antennae brown. Hind tibia dark brown.

Male. Unknown.

Measurements (mm). Length of body: ♀ 13.5–14.0; length of pronotum: ♀ 9.5–10.0; length of hind femur: ♀ 7.0–7.4.

Type material. Holotype: ♀, China, Yunnan prov., Weixin (Daxueshan), 27°50ʹ16ʹʹ N, 104°46ʹ57ʹʹ E, 1600 m alt., 21 August 2013, collected by Xun Bian, EMHU GoogleMaps . Paratypes. 1♀, same data, collected by Xun Bian and Guang- Lin Xie, EMHU GoogleMaps .

Diagnosis. This new species is similar to Formosatettix tianlinensis Zheng, 2009 and Formosatettix verrucinotus Ingrisch, 2001 , but is easily distinguished by morphological characters as shown in Table 1 View TABLE 1 .

Etymology. The specific epithet is derived from “ cliva ”, meaning median carina of pronotum is strongly elevated.

Distribution. P. R. CHINA: Yunnan.

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Orthoptera

Family

Tetrigidae

Genus

Formosatettix

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