Cercoteratura variegata, Gorochov, 2019

Gorochov, A. V., 2019, Taxonomy of the katydids (Orthoptera: Tettigoniidae) from East Asia and adjacent islands. Communication 12, Far Eastern Entomologist 379, pp. 1-24 : 20-22

Cercoteratura variegata Gorochov, sp. n.

http://zoobank.org/ urn:lsid:zoobank.org:act:D763F6A6-BF16-4C2A-B3AA-6E538B849ABB

Figs 57–61 , 72–78

MATERIAL. Holotype – ♂, Indonesia: Sumatra I., Aceh Prov. near border with North Sumatra Prov., environs of Ketambe Vill. on Alas River in Gunung

Leuser National Park, 3º41–42ʹN, 97º38–39ʹE, 300–500 m, primary forest, at light,

15–24.IV 2018, A. Gorochov, M. Berezin, I. Kamskov, E. Tkatsheva. Paratypes: 1

♂, same data ; 1 ♀, Malaysia: Borneo I., Sarawak State, environs of Miri Town ,

Lambir Hills National Park, 100–300 m, primary forest, on leaf of tree at night, 19–

20.XI 2016, A. Gorochov, M. Berezin, E. Tkatsheva, I. Kamskov, N. Grigoreva.

DESCRIPTION. Male (holotype). Coloration ( Fig. 57 ) yellowish with whitish tinge and following pattern: epicranium with brown eyes and a few stripes on dorsum

(one transverse stripe between eyes and 4 longitudinal stripes behind previous one)

as well as light brown areas between these stripes and in apical part of rostral tubercle; antenna with light brown scape and pedicel (but scape with yellowish ventral surface having longitudinal light brown stripe) as well as with rather numerous brownish to blackish spots on flagellum; palpi with greyish brown apices; pronotal disc with rather wide light brown longitudinal band (posterior half of this band widened and occupying lateral parts of disc also) having 3 longitudinal narrower and somewhat darker (brown) stripes on anterior half as well as 5 such stripes on posterior half;

tegmina with brown lateral parts of stridulatory apparatus and moderately numerous spots on lateral tegminal fields (these fields also with many of crossveins and some of longitudinal veins white); hind wings semitransparent, greyish with apical parts coloured as in tegmina; legs with greyish brown areas in apical parts of femora and

2 spots on proximal third of hind femur (one at base of outer femoral surface, and one larger and more distal on dorsal part of femur), darkened tibial spines and spinules

(including spurs) as well as areas in basal and apical parts of tibiae, partly darkened fore and middle tarsi, and almost completely darkened hind tarsi. Wings long: tegmina reaching middle of spread hind tibiae (i.e. strongly protruding beyond abdominal apex); hind wings significantly protruding beyond tegminal apices. Last tergite with small posteromedian lobe located in depth of large posteromedian notch ( Fig. 72 );

epiproct consisting of a pair of rather large lamellar lobes having dorsal and ventral parts somewhat curved laterally as well as apical part almost angular and ventral edge with short projection ( Figs 72, 76 ); small oval median lobule under these lobes probably also part of epiproct separated from these lobes by deep median concavity

( Fig. 74 ); cerci S-shaped, with thickened basal part, almost lamellar rest part, thin and arcuate apical spine, and 4 rather short lobules (most proximal lobule largest)

( Figs 72, 77 ); genital plate with long styles ( Fig. 75 ); genitalia with large semisclerotized structure having a pair of apical lobules which finely denticulated, curved upwards/forwards (hooked) and located near each other ( Figs 59, 60 ).

cauda (Sänger et Helfert); 81–84 – C. modesta sp. n.; 85, 86 – Pseudoteratura lambir Gor.

Male abdominal apex with spread cerci from above (72); same but with cerci in rest position from side (73, 83) and from above (82); male epiproct from behind (74) and from side (76,

79); male genital plate from below (75, 81); male left cercus in view similar to that in Figs 73

and 83 (77, 80); female genital plate with posterior sternite or its part (78, 84); ventral sclerite of male genitalia from side (85) and from above (86). [ Figs 79, 80 – after Sänger &

Helfert (1998), modified].

Variation. Second male with rostral tubercle having darkened dorsal stripe con-

necting its apical area with transverse stripe between eyes, abdominal apex somewhat deformed during drying ( Fig. 58 ), and lateral lobes of epiproct having short projection on dorsal edge (but not on ventral edge) ( Fig. 73 ).

Female. General appearance as in male paratype, but longitudinal band on pronotal disc not widened in posterior half and with 3 darker longitudinal stripes only),

stridulatory apparatus undeveloped, and last tergite and epiproct as well as cerci unspecialized; genital plate short, with very narrow anterior part, with wide posterior part having a pair of short angular medial projections posteriorly and a pair of rounded lateral lobules around them, and with a pair of oblique folds along lateral edges of this plate ( Fig. 78 ); ovipositor as in Fig. 61 .

MEASUREMENTS. Length (in mm). Body: ♂ 9–10, ♀ 11; body with wings: ♂

24–24.5, ♀ 25; pronotum: ♂ 3.7–3.9, ♀ 3.9; tegmina: ♂ 17.5–18, ♀ 18.5; hind femora: ♂ 12–12.5, ♀ 13.5; ovipositor 8.3.

COMPARISON. The new species is most similar to C. spinicauda comb. n. from

Thailand. However, it is distinguished from the latter congener by the male epiproct without rather large dorsal process on each lateral lobe (see Figs 73, 76 and 79 ),

male cercus with clearly smaller lobules (see Figs 77 and 80 ), male genitalia with the semisclerotized structure longer and having more strongly curved apical lobules, and probably female genital plate very characteristic in the shape (in C.

spinicauda, this plate is simple, roundly square).

ETYMOLOGY. Name of this species is the Latin word “variegata” (variegate,

motley).

REMARK. The female paratype is collected rather far from these males, has some small differences in coloration and may belong to a separate subspecies of this species.

Figures

Figs 57–71. Meconematini and Phlugidini: 57–61 – Cercoteratura variegata sp. n.; 62–

Figs 72–86. Meconematini: 72–78 – Cercoteratura variegata sp. n.; 79, 80 – C. spini-