Anelytra (Euanelytra) signata 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 : 19-20

Anelytra (Euanelytra) signata Gorochov , sp. n.

http://zoobank.org/NomenclaturalActs/ A870A11E-240A-44F6-80B9-5272FA7483E2

Figs 60, 79–82, 141, 142, 162, 179

MATERIAL. Holotype – ♂, Vietnam: Gia Lai Prov., ~ 20 km N of Kannack Town ,

environs of Buon Luoi Vill., primary forest, 1–10. V 1995, A. Gorochov ( ZIN). Paratype –

same data as for holoype, ♀ ( ZIN) .

DESCRIPTION. Male. General appearance somewhat similar to that of all congeners previously considered here. However, body slightly more robust, and coloration lighter:

yellowish-greyish with uniformly dark brown anterior surface of epicranium, ventrolateral parts of rostral tubercle, median parts of scapes (including borders of antennal cavities) and upper part of clypeus, with black mandibles (Fig. 60), with four brown spots on pronotal disc

(a pair of small spots near anterior edge and a pair of elongate spots on hind lobe), with greyish brown some tegminal membranes and a pair of longitudinal lateral bands on abdominal tergites, with a few brown marks on dorsal surface of fore tibia and on dorsoproximal parts of middle and hind tibiae, with yellowish-reddish labrum and rest of clypeus, and with numerous whitish dots on pronotum and abdomen. Ventral edge of each pronotal lateral lobe with anterior part almost lobule-like (i.e. more projected downwards than in A. neofurata but clealy rounded), with posterior lobule, covering base of fore coxa, almost angular, and with humeral notch obtusely angular; hind pronotal lobe covering base of tegminal mirror only;

last tergite with posteromedian notch deeper than in previous congeners; epiproct longitudinally oval but also small and directed downwards; paraprocts without distinct lobules; cercus shorter than in these species and with two distal lobules moderately long but characteristic and different in shape ( Figs 79–81 ); genital plate with rather narrow distal part having normal styles and small roundly angular notch between them ( Fig. 79 ); genitalia with sclerites somewhat shorter than in A. (E.) namlik and A. (E.) neofurcata and having laterally flattened apical disc provided with numerous marginal denticles ( Fig. 142 ); ventroproximal lobules of these sclerites rather large and directed laterally ( Figs 141 , 162 ).

Female. Coloration and external structure of body as in male, but pronotum with posterior dark spots smaller, fore and middle femora somewhat darkened dorsally, middle and hind tibiae distally also with darkened dorsal marks, tegmina almost invisible, and abdominal apex more or less similar to that of female of A. (E.) namlik in structure. However, female genital plate with membranous median triangle, a pair of hook-like apical spinules, and rather wide and shallow angular notch between them ( Fig. 82 ); ovipositor longer and less arcuate ( Fig. 179 ).

MEASUREMENTS. Length (in mm). Body: ♂ 27, ♀ 29; pronotum: ♂ 7.2, ♀ 6.9; hind pronotal lobe: ♂ 1.5, ♀ 1; visible parts of tegmina: ♂ 3, ♀ 0–0.1; hind femora: ♂ 10.7, ♀

11.6; ovipositor 12.8.

COMPARISON. The new species is similar to A. (E.) boku in the body coloration (especially in spots on pronotum), but it is clearly distinguished from the latter species and all the other congeners by the characteristic shape of male cercal distal lobules and of apical part of female genital plate.

ETYMOLOGY. Name of this species is the Latin word “signata” (signed, marked) given in connection with its pronotal coloration.

Figures

Figs 70–96. Anelytra s. l.: 70–74 – A. (Euanelytra) namlik sp. n.; 75–77 – A. (E.)

Figs 134–155. Anelytra s. l., male genitalia: 134–136 – A. (Euanelytra) namlik sp. n.;

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.;