Hyboella Hancock, 1915

Deng, Wei-An, Zheng, Zhe-Min & Wei, Shi-Zhen, 2009, The genus Hyboella Hancock (Orthoptera: Tetrigidae: Metrodorinae) in China, Zootaxa 2064, pp. 57-68 : 57-59

Hyboella Hancock, 1915

Hyboella Hancock, 1915 , Rec. Ind. Mus. (Ent.), 11:104; Günther, 1939, Revision der Acrydiinae (Orthoptera) . III. Sectio Amorphopi (Metrodorae Bol. 1887, Aut.):205; Kevan, 1966, Entomologiske Meddelelser, 34: 382; Shishodia, 1991, Rec.Zool. Surv. India. Occ. Paper, 140:105; Liang & Zheng, 1998, Fauna Sinica, Insecta.12: 111; Zheng, 2005,Fauna of Tetrigoidea from Western China: 165; Deng, Zheng & Wei, 2007, Fauna of the Tetrigoidea from Yunnan and Guangxi, 153.

Type species: H. tentata Hancock, 1915 by original designation.

Diagnosis. Body of moderate size (Length of body 5–17 mm). Vertex generally equal to or wider than one eye; median keel distinct; frontal ridge arched protruding forward, longitudinal sulcus slightly narrow; lateral ocellus located in middle or below middle of anterior margin of eye. Antennae filiform, inserted between lower margins of eyes or inner sides below lower margins of eyes. Anterior part of pronotum strongly widened, arched and uplifted. Anterior margin of pronotum straight or slightly protuberant in middle, posterior margin wedge-like, end of pronotum not reaching or slightly surpassing the top of hind femur; median keel humpbacked elevated in front of humeral angles, slightly flat behind shoulders. Posterior lower angle of lateral lobe of pronotum laminate widened outwards, truncate at apex of posterior angle of lateral lobe of pronotum. Lower margins of fore and median femora straight or waved. Hind femur stout. First segment of posterior tarsi longer than the third.

Species Locality

Hyboella aelytra Zheng China, Guizhou, Chishui

Hyboella tibetana Uvarov Mount Qomolangma regions( China; India and Nepal) Hyboella taiwanensis Liang China, Taiwan

Hyboella hainanensis Liang China, Hainan

Hyboella strictvertex Liang China, Guangdong and Hainan Hyboella brevipennis Deng, Zheng et Wei China, Yunnan and Guangxi Hyboella guizhouensis Zheng China, Guizhou, Chishui

Hyboella undatifemura Deng, Zheng et Wei China, Guangxi, Fengshan and Tianyang Hyboella jinxiensis Deng, Zheng et Wei China, Guangxi, Jinxi

Hyboella obesa Hancock China, Xizang, Motuo; India, West Bengal, Darjeeling Distt. Hyboella yunnana Zheng China, Yunnan, Jingdong

Hyboella guangxiensis Zheng et Jiang China, Guangxi

Hyboella interrupta Zheng et Deng China, Guangxi, Yizhou

Hyboella longinota Zheng et Jiang China, Guangxi

Hyboella longipennis Zheng China, Xizang, Motuo

Hyboellan nullipennis (Hancock, 1913) India, Arunachal Pradesh

Hyboellan tumida (Hancock, 1913) India, Assam

Hyboellan conioptica Hancock, 1915 India, Assam

Hyboellan tentata Hancock, 1915 India, Assam

Hyboellan dilatata (De Haan, 1842) India, Assam and Arunachal Pradesh; Indonesia, Java Hyboella similis Günther, 1939 Malaysia, Malacca; Indonesia, Java Hyboella problematica (Bolivar, 1909) India, Assam

Hyboella perakensis Günther, 1939 Malaysia, Malacca

Hyboella overbecki Günther, 1939 Malaysia, Malacca; Indonesia, Java Hyboella keyensis Günther, 1935 Malaysia, Key Island; Indonesia, Java Hyboella heinrichi Günther, 1939 India, Assam; Thailand, Chiang Rai Hyboella angulifrons Hancock, 1915 India, Assam; Burma, Karan State, Dawna Hills Hyboella aberrans Ichikawa, 1994 Japan, Okinawa

The genus Hyboella Hancock is very interesting as it exhibits intermediate characters between the subfamily Scelimeninae and Tetriginae . Due to the lack of sufficient material it was kept under Scelimeninae by Hancock in 1915, with only six Indian species. Günther (1939) revised the genus and transferred it under Metrodorinae based on posterior lower angle of lateral lobe of pronotum laminate widened outwards, end of posterior angle of lateral lobe of pronotum truncate. Hyboella Hancock is closely related to Bolivaritettix Günther , but differs in front part of pronotum strongly widened, arched and uplifted; midkeel of pronotum humpbacked elevated in front of shoulders.

Species of the genus Hyboella Hancock are typical inhabitants of moist places in tropical rainforests, such as marshes, moist stony ground. They feed on mosses and other forms of humus, they generally overwinter as adults.