Elimaea (Poaefoliana) albimaculata, Ingrisch, Sigfrid, 2011

Ingrisch, Sigfrid, 2011, New taxa of Elimaeini (Orthoptera: Tettigoniidae: Phaneropterinae) from South East Asia, Zootaxa 2935, pp. 1-25 : 6

Elimaea (Poaefoliana) albimaculata sp. n.

Figs. 1 B, 2J–K, 3D, 4J–K, 5H–J, 6H–J, 8J–L

Holotype (male): Malaysia: 30 miles NE of Kuala Lumpur, Ulu Gombak Forest Reserve [3°20'N, 101°45'E], 8.ix.1967, leg. N.D. Jago, depository: The Natural History Museum London ( BMNH).

Paratype: 1 female, same locality as holotype, 21.viii.1967, leg. N.D. Jago ( BMNH).

Diagnosis. Characterised by the yellowish white stridulatory area of the male left tegmen. Differs from other species also by the stridulatory vein on dorsal side being straight but with oblique course. The arrangement of teeth on the stridulatory file with six large and a series of smaller teeth is intermediate between the situation in E. poaefolia and E. rosea . The stridulatory area of the right tegmen is projecting in middle similar to that of E. jacobsoni , but the shape of the mirror and the projecting area are quite different between both species. The cerci are only curved in the apical half, which deviates from the situation in the other species. The female is characterised by the long, stout projection of the gonangulum of ovipositor.

Description. Fastigium verticis furrowed, little descending in front of lateral ocelli. Pronotum elongate, narrow; disc rounded; posterior area flat and with medial carina; paranota much longer than high; posterior margin slightly convex; humeral sinus distinct. Thoracic auditory spiracle very large, descending ventrally below dorsal margin of coxa; ventral third to ventral half not covered by pronotum.

Male. Stridulatory area of left tegmen ovoid ( Fig. 2 J), of right tegmen with inner margin projecting thus forming an elongate secondary mirror ( Fig. 2 K). Stridulatory file on underside of left tegmen with 16 teeth: 2 mediumsized at base, 6 large in middle, and 8 small at apex ( Fig. 3 D). Mirror on right tegmen 0.91 mm long, 0.85 mm wide; index length: width 1.07 ( Fig. 2 K). Tenth abdominal tergite with apical margin very little convex, almost truncate in middle. Epiproct very long, with a fold, behind which it is pointing backwards. Cerci thin, curved; apical area with long setae and acute tooth at tip ( Figs. 4 J–K). Subgenital plate with central area projecting behind, long and narrow with lateral carinae; in apical area little curved up and little widened at start of apical area; narrowly split into two obtuse lobes; lobes on internal margin with spinules, an internal carina running along divided area ( Figs. 5 H–J). Phallus with elongate, paired, saw-blade shaped sclerites (Figs. H–J [not pulled off to check for an unpaired median sclerite]).

Female. Epiproct elongate-triangular, faintly furrowed; ventral side setose. Cerci curved; apex tapered. Subgenital plate transverse; with medial carina; apex broadly subtruncate with a short triangular flap at both angles ( Figs. 8 J–K). Ovipositor elongo-falcate, regularly curved throughout; apical half of dorsal margin and apical area of ventral margin finely serrulate ( Fig. 8 L); gonangulum with a stout obtuse projection ( Fig. 8 K).

Coloration. Green. Pronotum with black dots and narrow white medial band. Tegmen with green veins and veinlets and brown cells; latter getting lighter towards apex and anterior area; along hind margin with blackish brown cells; some blackish brown dots also in medial field ( Fig. 1 B). Stridulatory area of male tegmen white ( Fig. 2 J). Hind wings with little conspicuous red veins except in proximal and apical areas.

Measurements (1 male, 1 female). Body w/wings: male 40, female 43; body w/o wings: male 17, female 23.5; pronotum: male 4.0, female 4.6; tegmen: male 30, female 33.5; tegmen width: male 3.3, female 4.0; hind wing: male 33, female 37; hind femur: male missing, female 25; ovipositor: female 8.3 mm.

Figures

FIGURE 1. Left tegmen of Elimaea (Poaefoliana) species: A, E. poaefolia (De Haan, 1842), syntype female; B, E. albimaculata sp. n. holotype male; C – D, E. rosea Brunner, 1878 [C, lectotype male; D, male from Poring]; E, E. kutu sp. n. holotype male; F, E. jitra sp. n. holotype male.

FIGURE 2. Stridulatory area of left (A – C, E, G, I, J, L) and right (D, F, H, K, M) male tegmen of Elimaea (Poaefoliana) species: A, E. poaefolia (De Haan, 1842) [specimen 19206 in NHMW]; B – D, E. rosea Brunner, 1878 [B, lectotype; C – D, male from Poring]; E – F, E. kutu sp. n. holotype; G – I, E. jitra sp. n. holotype; J – K, E. albimaculata sp. n. holotype; L – M, E. jacobsoni Karny, 1926 holotype. Abbreviations: mi, mirror; sv, stridulatory vein.

FIGURE 3. Male stridulatory file on underside of left tegmen of Elimaea (Poaefoliana) species: A, E. jacobsoni Karny, 1926 holotype; B – C, E. poaefolia (De Haan, 1842) [B, specimen 19206 in NHMW; C, paralectotype of E. rosea in SMTD]; D, E. albimaculata sp. n. holotype; E – F, E. rosea Brunner, 1878 [E, lectotype; F, male from Poring]; G, E. jitra sp. n. holotype; H, E. kutu sp. n. holotype. Figs B and E by C. Hemp.

FIGURE 4. Male cercus of Elimaea (Poaefoliana) species in roughly dorsal view (A, B, F, H, J, L, N, P); apex of cercus in roughly posterior view (C – E, G, I, K, M, O, Q). A – E, E. poaefolia (De Haan, 1842) [A, D, male syntype; B – C, paralectotype of E. rosea in SMTD; E, specimen 19206 in NHMW]; F – I, E. rosea Brunner, 1878 [F – G, lectotype; H – I, male from Poring]; J – K, E. albimaculata sp. n. holotype; L – M, E. kutu sp. n. holotype; N – O, E. jitra sp. n. holotype; P – Q, E. jacobsoni Karny, 1926 holotype.

FIGURE 5. Male subgenital plate of Elimaea (Poaefoliana) species in ventral view (A – D, F, H, K, M); do. in lateral view (E, I, L, N); do. apex of subgenital plate in lateral view (G, J). A – C, E. poaefolia (De Haan, 1842) [A, male syntype; B, paralectotype of E. rosea in SMTD; C, specimen 19206 in NHMW]; D, E. jacobsoni Karny, 1926 holotype; E – G, E. rosea Brunner, 1878 [E, lectotype; F – G, male from Poring]; H – J, E. albimaculata sp. n. holotype; K – L, E. jitra sp. n. holotype; M – N, E. kutu sp. n. holotype. Abbreviations: e, epiproct; ce, cercus; ps, phallus sclerite; sg, subgenital plate.

FIGURE 8. Female subgenital plate of Elimaea (Poaefoliana) species in ventral view (A, D, G, J); subgenital plate and base of ovipositor in lateral view (B, E, K); " base of ovipositor " (H); female abdominal apex with ovipositor in lateral view (C, F, L, I). A – C, E. poaefolia (De Haan, 1842), female syntype; D – F, E. jitra sp. n. paratype; G – I, E. rosea Brunner, 1878 paralectotype; J – L, E. albimaculata sp. n. paratype. Abbreviations: bd, base of dorsal ovipositor valve; bv, do. of ventral valve; go, gonangulum; sg, subgenital plate.