Anelytra (Stenanelytra) angusticauda Gorochov, 2020

Gorochov, A. V., 2020, Taxonomy of the katydids (Orthoptera: Tettigoniidae) from East Asia and adjacent islands. Communication 13, Far Eastern Entomologist 400, pp. 1-36 : 33

Anelytra (Stenanelytra) angusticauda Gorochov , sp. n.

http://zoobank.org/NomenclaturalActs/ AAB1ACD7-DCBB-4920-A433-D973632ACCEE

Figs 68, 128–133, 172, 186

MATERIAL. Holotype – ♂, Vietnam: Gia Lai Prov., 20 km N of Kannack Town , environs of Buon Luoi Vill., VI 1983 , I. Darevsky ( ZIN) . Paratype: same data, but 24–30.IV

1995, 1 ♀, A. Gorochov ( ZIN) .

DESCRIPTION. Male. General appearance similar to that of A. (S.) busuanga and A. (S.)

nigra but with following features: general coloration very light brown (almost yellowish) with black ventral half of rostral tubercle, ventral and medial parts of antennal cavities, space between their medial parts, and large area on anterior surface of epicranium from this space to clypeus (this area slightly widened in middle part; Fig. 68), with dark brown a pair of lateral areas on upper part of clypeus, large area on mandible, and spot on fore tibia near distal parts of its tympana, with brown stripe along dorsal edge of antennal cavity, distal half of labrum, subbasal and subapical dorsal spots on fore tibia, small marks on basal parts of middle and hind tibiae, and membranes in lateral and basal parts of tegmina, as well as with yellowish-whitish palpi, upper half of labrum, small median spot on upper clypeal part and numerous dots on abdominal tergites; head slightly longer than in A. (S.) nigra and A. (S.)

busuanga (minimal distance between eye and clypeus about 1.7 times as great as width of clypeus; vs. 1.4–1.5 times); pronotum as in A. (S.) busuanga but with less developed humeral notches (each notch looking as slight concavity of oblique posteroventral portion of ventral edge); tegmina partly covered with pronotum (posterior pronotal edge reaching base of mirror)

and having very widely rounded (almost truncate) apical parts reaching middle part of metanotum; abdominal apex also similar to that of A. (S.) busuanga and A. (S.) nigra , but epiproct with distal part distinctly narrower than in these congeners and having posterior edge weakly sinuate (i.e. more similar to that of A. nigra ), cerci indistinguishable from those of A. (S.)

nigra but with dorsoapical lobules distinctly shorter than in A. (S.) busuanga ( Figs 130–133 ),

genital plate with postromedian notch slightly deeper than in both species ( Fig. 129 ), and sclerites of genitalia with ventroproximal lobules clearly shorter and more proximal than in

A. (S.) nigra but less proximal than in A. (S.) busuanga ( Fig. 172 ).

Female. Coloration and structure of body as in male, but upper part of clypeus almost completely darkened, lateral parts of metanotum and of some anterior abdominal tergites with slightly darkened areas, tegmina lobule-like (lateral) and reaching posterior part of mesonotum as well as having rounded apices and rather numerous small brown marks, and abdominal apex more or less similar to that of previous congeners decribed here (last tergite without posterodorsal lobe but with small posteromedian notch, epiproct and paraprocts small and rounded, cerci fusiform with thin distal parts rather long). However, genital plate with almost angular posterior half having moderately short and narrow posteromedian notch located between a pair of roundly angular and short apical lobules ( Fig. 128 ), and ovipositor more straight than in all other congeners ( Fig. 186 ).

MEASUREMENTS. Length (in mm). Body: ♂ 27.5, ♀ 26–28; pronotum: ♂ 6.2, ♀ 6.1–

6.6; hind pronotal lobe: ♂ 0.9, ♀ 0.7–0.8; visible parts of tegmina: ♂ 1.6, ♀ 0.6–0.8; hind femora: ♂ 11.5, ♀ 12.5–12.8; ovipositor 11–11.5.

COMPARISON. The new species is most similar to A. (S.) nigra but distinguished by the longer head, clearly narrower male epiproct and shorter ventroproximal lobules of male genital sclerites. From A. (S.) busuanga , the new species differs in the longer head with a large dark area on the epicranial face, narrower male epiproct, and distinctly less projected dorsoapical lobule in the male cercus.

ETYMOLOGY. The species name originates from the Latin words “angustus” (narrow)

and “cauda” (tail) in connection with the male epiproct shape.

Figures

Figs 97–133. Anelytra s. l.: 97–100 – A. (Anelytra) archaica sp. n.; 101–105 – A. (Ane-

Figs 156–176. Anelytra s.l., male, genital sclerites and cercus: 156, 157 – A. (Euanelytra)

Figs 177–188. Anelytra s. l., ovipositor from side: 177 – A. (Euanelytra) namlik sp. n.;