Tamdaotettix (Tamdaotettix) ailaoshanicus, Gorochov & Storozhenko, 2019

Tamdaotettix (Tamdaotettix) ailaoshanicus View in CoL sp. nov.

( Figs 122–131, 147–149)

Holotype. Male, Southern China, Yunnan Prov., Ailaoshan Mountain Range , W of Shuitangzhen Town, “ 24 08 31 N / 101 23 52 E ”, 2555 m, 4.VI.2011, I. Belousov, I. Kabak, N. Korolev ( ZIN). GoogleMaps

Paratypes. One male, 2 females, same data as for holotype ( ZIN) GoogleMaps ; 1 male, same province, but SSE of Shuangjiang Town , “ 23 25 01 N / 99 57 01 E ” and “ 23 25 10 N / 99 57 24 E ”, 2425–2570 m, 20.VI.2011, I. Belousov, I. Kabak, N. Korolev ( ZIN) GoogleMaps .

Description. Male (holotype). Body typical of Tamdaotettix s. str. but rather small. Colouration moderately spotted: head light brown with six brown spots on dorsum (lateral spots occupying also upper parts of lateral surfaces of head behind eyes); thoracic tergites brown with light brown lower parts, characteristic yellowish dots and stripes along lateral edges of dorsum and several yellowish dots between them; thoracic pleurites, legs and abdominal tergites almost uniformly light greyish brown but with distal two thirds of hind femur and processes of sixth and seventh abdominal tergites darker (almost brown), with poorly distinct darkish or lightish spots on distal parts of all femora and on fore and middle tibiae, and with barely distinct small darkish marks on tergites; other parts of body (including cerci, paraprocts and genital plate) almost yellowish. Body distinctly horseshoe-shaped in profile; head with rostral tubercles finger-like, contacting with each other from bases to apices, and directed more downwards than forwards; thoracic tergites shiny (except for their lower parts), but all abdominal tergites matt (not shiny); pronotum with convex dorsal edge in profile; femora practically unarmed, i.e. with apical spurs on fore and middle legs typical of Aemodogryllinae , and with one very small inner apical denticle on hind femur only; armament of tibiae and hind basitarsus characteristic [dea, v2, v~2, v3a (v2a) / d2a, ve, v2, v3a / d56e- 58i (d59e-63i), d2sa, 6a / d1c, dac]; dorsal inner spur of hind tibia reaching apex of dac; sixth and seventh abdominal tergites with rather long posteromedian processes (first of these processes thin, spine-like and with a pair of angular denticles at apex; second of them significantly wider, with apex V-shaped (reversed) from behind and having three pairs of very small denticles, and somewhat protruding beyond apex of previous process; Figs 122–124); paraproctal processes finger-like, moderately short and arcuately curved aside ( Figs 122, 123); genitalia with membranous lobes rather long (except for ventromedian one), and with dorsomedian lobe having oval apical part ( Fig. 147).

Variations. Other male from same locality with only insignificant differences in armament of legs and in shape of processes of sixth and seventh abdominal tergites ( Figs 125, 126); apparent differences in shape of paraproctal processes probably only result of movability of paraprocts (see Figs 122 and 126). However, male from another locality distinguished by slightly longer process of seventh abdominal tergite having a pair of distinct apical denticles only, by narrower apex of process of sixth abdominal tergite, and by somewhat less arcuate shape of paraproctal processes ( Figs 127–129); but it similar to holotype in shape of male genital lobes ( Figs 148, 149).

Female. General appearance as in males, but processes of sixth and seventh abdominal tergites clearly shorter and not spine-like ( Fig. 130), and paraprocts simple (without processes); genital plate widely rounded in distal part ( Fig. 131); ovipositor moderately long and thin, with distal part in profile gradually narrowing to narrowly acute apex, and without distinct denticles.

Length in mm. Body: male 12–14, female 12– 13; pronotum: male 4–4.8, female 4.2–4.4; fore femur: male 6–6.5, female 5.8–6; hind femur: male 13.8–15.5, female 13.6–14; hind tibia: male 14–16, female 13.8–14.2; hind basitarsus: male 2.7–2.9, female 2.5–2.7; ovipositor 8.5–9.

Comparison. The new species is most similar to T. (T.) dilutus Gor. in the shape of male abdominal apex, but its body is significantly smaller and with only thoracic tergites shiny (in T. dilutus , four anterior tergites shiny), process of sixth abdominal tergite in male has a pair of apical denticles (no such denticles in T. dilutus ; Figs 133, 135), process of seventh abdominal tergite in male is with the apex more V-shaped (less transverse) from behind (see Figs 124 and 134) and having paired (from two to six) apical denticles (vs. having three apical denticles; Figs 134, 136), and male genitalia are with oval apex of dorsomedian lobe (vs. with narrowly angular apex of this lobe; Figs 115, 116).

Etymology. The new species is named after the Ailaoshan Mountain Range.