Microtachycines elongatus Qin, Liu & Li, 2017

Qin, Yan-Yan, Liu, Xian-Wei & Li, Kai, 2020, Remarks on genus Microtachycines Gorochov, 1992 (Orthoptera Rhaphidophoridae: Aemodogryllinae) from China, Zootaxa 4801 (3), pp. 570-576 : 571-573

Microtachycines elongatus Qin, Liu & Li, 2017

( Figs. 1–8 , 17–19 )

Microtachycines elongatus: Qin, Liu & Li, 2017 , Zootaxa, 4216 (6): 597.

Microtachycines fallax: Qin, Liu & Li, 2017 , Zootaxa, 4216(6): 600. (synonym)

Type specimen: male; type locality: Qingliangfeng, Lin’an, Zhejiang; location of type specimen: Shanghai Entomological Museum , Chinese Academy of Science ( SEM, CAS) .

Redescription. Male. Size of body not uniform. Head with fastigium of vertex divided into two evident tubercles, well-divided ( Fig. 2 ). Legs slender, fore femur about 1.7 times long as pronotum, fore femur beneath with spines, external genicular lobe with 1 long movable spine, internal genicular lobe with 1 small spine ( Fig. 3 ); fore tibiae beneath with 2 external spines and 1 internal spine, between the apical paired spines with a short spine. Mid femur with 1 external and 1 internal genicular spine separately; mid tibiae beneath with 1 external spine and 1 internal spine, between the apical paired spines with 1 small spine. Hind femur beneath with 4–9 internal spines, without external spine; hind tibiae with 64–70 spines, arrange in groups, 1 group comprise 3–7 spines ( Fig. 5 ), the longest apical spine situated in internal side of hind tibiae almost equal or slightly longer than apex of hind metatarsus. Hind metatarsus keeled beneath and with 1 apical spine dorsally. Epiproct nearly rectangular, its long about 1.5 times as wide, hind margin concave, middle part of lateral margin convex, almost blunt ( Fig. 4 ). Male genitalia with dorsolateral lobes inflated and sclerotized heavily, apex undivided, middle lobe rather short and small, pseudosternite small, upper apex with 1 small incision ( Fig. 7 ).

Female. Ovipositor slightly shorter than half of hind femur, apical part of ventral valvula serrated ( Fig. 6 ). Subgenital plate nearly trapezoid, apex of hind margin with 1 small projection ( Fig. 8 ).

Coloration. Whole body dark brown with conspicuous stripes. Frons with 4 longitudinal stripes (under antenna and eyes possess 1 pair separately) ( Fig. 1 ). Legs with black annular stripes.

Measurements (in mm). Body ♂ ♀ 10.0–18.0; pronotum ♂ ♀ 6.5–7.5; fore femur ♂ ♀ 9.0–12.5; hind femur ♂ ♀ 17.5–25.5; hind tibiae ♂ ♀ 19.5–26.5; ovipositor ♀ 8.0–12.5.

Material examined. 2♂♂ 3♀♀, Zhejiang, Qingliangfeng, Longtangshan , alt. 1000m, 20-VII-2009, leg. Yin Zi-Wei et al.; 1♀, Zhejiang, Xitianmushan , alt. 350m, 14~ 15-X-2009, leg. Liu, Qiu, Bi ; 1♂ 1♀, Hubei, Xianning, Jiugongshan, Yunzhonghu , alt. 1200–1250m, 30-VII-2016, leg. Hu Jia-Yao et al.; 2♂♂, Hubei, Yingshan , Wu- jiashan, alt. 900m, 28-VI-2014, leg. Wang Han-Qiang & Sun Mei-Ling ; 1♂, Zhejiang, Xitianmushan , collector unknown ; 2♂♂ 1♀ (nymphs), Zhejiang, Kaihua, Gutianshan , alt. 300~ 500m, 6~ 8-VII-2017, leg. Wang, Qin, Zhang ; 4♂♂ (nymphs), Zhejiang, Lin’an, Qingliangfeng , alt. 980m, 22~ 24-I-2007, leg. Bi Wen-Xuan ; 1♂, Zhejiang, Kaihua, Gutianshan , alt. 330~ 800m, 18~ 20-IX-2012, leg. Liu Xian-Wei et al.; 6♂♂ 4♀♀ (1♀ nymph), Zhejiang, Kaihua, Gutianshan , alt. 300~ 800m, 13~ 15-VII-2018, leg. Qin Yan-Yan ; 6♂♂ 1♀, Hubei, Xianning, Jiugongshan , alt. 1100~ 1280m, 20~ 21-IX-2018, leg. Qin Yan-Yan & Zhang Sai-Nan ; 12♂♂ 11♀♀, Fujian, Wuyishan , Shuilian- dong, alt. 200m, 22-VIII-2018, leg. Qin Yan-Yan ; 3♂♂ (nymphs) 3♀♀ (1 adult), Zhejiang, Lin’an, Qingliangfeng, Shichangcheng Village , alt. 300~ 400m, 28~ 30-VIII-2018, leg. Qin Yan-Yan ; 7♂♂ 7♀♀, Zhejiang, Qingliangfeng, Longtangshan , alt. 630~ 820m, 19-VII-2019, leg. Liu Xian-Wei et al.; 1♀, Jiangxi, Sanqingshan, Tiyunling to Xian- renzhilu, alt. 1240~ 1400m, 27-VII-2019, leg. Liu Xian-Wei et al.; 3♂♂ 1♀, Jiangxi, Sanqingshan, Wanshouyuan , alt. 1240~ 1300m, 26-VII-2019, leg. Liu Xian-Wei, Wang Han-Qiang, Qin Yan-Yan ; 5♂♂ 6♀♀, Zhejiang, Qin- gliangfeng, Longtangshan , alt. 820~ 1000m, 21-VII-2019, leg. Liu Xian-Wei, Wang Han-Qiang, Qin Yan-Yan ; 3♂♂ 2♀♀, Jiangxi, Sanqingshan, Tiyunling to Xiashanlu , alt. 1020~ 1040m, 28-VII-2019, leg. Liu Xian-Wei, Wang Han-Qiang, Qin Yan-Yan.

Distribution. China (Zhejiang, Hubei, Jiangxi, Fujian).

Discussion. When this species was reported, its type locality was given as Qingliangfeng of Zhejiang and the specimens were adults. Microtachycines fallax Qin et al., 2017 was also reported at the same time, its type locality, Jiugongshan and Wujiashan, Hubei, but the specimens were nymphs. More specimens have been collected from above two type localities recent years, diagnostic characters i.e. male genitalia and female subgenital plate of adult individuals from Jiugongshan of Hubei are same with Microtachycines elongatus Qin et al., 2017 , other descriptions are almost identical.Another important point deserves to be mentioned is that characters of nymph individuals from Qingliangfeng of Zhejiang ( Fig. 7c, 7d ) is same as M. fallax from Wujiashan of Hubei ( Figs. 7a, 7b ) when reported. In conclusion, we consider that M. fallax can be considered as a synonym of M. elongatus . Up to now, species Microtachycines elongatus Qin, Liu & Li, 2017 possesses an extensive distribution, including Zhejiang (Qingliangfeng, Tianmushan, Gutianshan), Hubei (Jiugongshan, Wujiashan), Fujian (Wuyishan), Jiangxi (Sanqingshan).

Figures

FIGURES 1–8. Microtachycines elongatus Qin, Liu & Li, 2017. 1. Head, frontal view; 2. Fastigium of vertex, dorsal view; 3. Spine in internal genicular lobe of fore femur, ventral view; 4.Abdominal apex of male, dorsal view; 5. Hind tibiae, lateral view; 6. Ovipositor of female, lateral view; 7. Male genitalia, dorsal view; 8. Subgenital plate of female, ventral view.

FIGURES 17–19. Microtachycines elongatus Qin, Liu & Li, 2017. 17. Male in habitat, lateral view (photographed in Qingliangfeng of Zhejiang province); 18. Male in habitat, dorsal and posterior view (photographed in Qingliangfeng of Zhejiang province); 19. Female in habitat, dorsal and lateral view (photographed in Qingliangfeng of Zhejiang province).