Diestramima excavata, Qin, Yanyan, Wang, Hanqiang, Liu, Xianwei & Li, Kai, 2016

Qin, Yanyan, Wang, Hanqiang, Liu, Xianwei & Li, Kai, 2016, A taxonomic study on the species of the genus Diestramima Storozhenko (Orthoptera: Rhaphidophoridae; Aemodogryllinae), Zootaxa 4126 (4), pp. 514-532 : 517-518

2. Diestramima excavata sp. nov.

( Figs. 4–7 )

http://lsid.speciesfile.org/urn:lsid: Orthoptera .speciesfile.org:TaxonName:477202 Description. Male. Body intermediate sized. Head with fastigium of vertex divided into two conical tubercles. Legs long and slender; fore femora about 2.3 times as long as the pronotum, beneath unarmed, internal knee lobe without spines, genicular lobe with 1 long movable spur; fore tibia beneath with 2 external and 2 internal spurs, between the paired apical spurs with a median spur. Mid femora with a long movable spur on the internal and genicular lobe; mid tibia beneath with 2 external and 2 internal spurs, between the paired apical spurs with a short spur. Hind femora beneath with 6 inter spines and without outer spines; hind tibia above with 30 outer spines and 30–35 inter spines, inner subapical spur of hind tibia equal to length of hind metatarsus. Hind metatarsus with 2 dorsal spines. Paraproct with an acute apical angle ( Fig. 4 ). Apex of process of 7th abdominal tergite with a semicircular hollow ( Fig. 5 ). Male genitalia with notched apex of dorso-median lobe ( Fig. 6 ).

Female. Subgenital plate nearly rounded and apex with a small notch ( Fig. 7 ). Ovipositor longer than the half of hind femora.

Coloration. Body dark black. Face with 4 darkish longitudinal bands and 2 dark spots near clypeal suture. Legs light with dark marks.

Measurements. (length in mm) Body Ƌ15.0–16.5, ♀16.5; pronotum Ƌ5.5–6.0, ♀6.0; fore femora Ƌ12.5, ♀14.0; hind femora Ƌ25.0, ♀28.5; hind tibia Ƌ28.5, ♀30.5; ovipositor 18.5.

Material examined. Holotype, 1♂, Maoer Mountain, Guangxi, China, alt. 450–600m, 1992. VIII.5, collected by Liu Xian-Wei et al.; paratype, 1Ƌ3♀♀, Maoer Mountain, Guangxi, China, alt. 500–1100m, 2013. VII.30, collected by Zhu Wei-Bing et al ..

Distribution. China (Guangxi).

Discussion. This new species is similar to D. vietnamensis Gorochov, 1998 , but differs as follows: apex of process of male 7th abdominal tergite with a semicircular hollow and slightly wider than basal part.

Figures

FIGURES 4 – 7. Diestramima excavata sp. nov. 4. Male abdominal apex, lateral view; 5. Process of male 7 th abdominal tergite, dorsal view; 6. Male genitalia, dorsal view; 7. Female subgenital plate, ventral view; scale bars = 2 mm.