Agnotecous minoris Robillard

Robillard, Tony, Nattier, Romain & Desutter-Grandcolas, Laure, 2010, New species of the New Caledonian endemic genus Agnotecous (Orthoptera, Grylloidea, Eneopterinae, Lebinthini), Zootaxa 2559, pp. 17-35 : 27-28

Agnotecous minoris Robillard n. sp.

( Fig. 4 )

Type material. Holotype male: New Caledonia. Grande Terre, Base du Mont Mou, forêt sur pente 22°04’30’’S 165°19’52’’E, 390 m (Pt 29), ( TR 266), 16.V.2008, jour, litière, T. Robillard & F. Muller (MNHN-ENSIF1389).

Type locality. New Caledonia, Grande Terre, Base du Mont Mou.

Etymology. Named after the small size of the species.

Distribution. New Caledonia, Grande Terre, Province Sud, Mont Mou.

Diagnosis. Species small, close to A. brachypterus from which it differs by its smaller size, details of colouration and by the shape of the pseudepiphallus in male genitalia.

Description. Size very small for the genus. Colouration contrasted, quite dark with lighter areas on dorsum. Head dorsum with 6 brown longitudinal bands without yellow brown background; dorsal eye margins yellow. Fastigium yellow brown with median black spots. Scapes yellow brown with dark brown patterns anteriorly, antennae light brown basally then dark brown with yellow rings. Cheeks black dorsally, dark brown ventrally, with a whitish spot bellow eyes. Face homogeneously dark brown, the dorsal limit with fastigium black. Mouthparts yellow mottled with black, brown and whitish. Palpi black with a yellow brown ring on the 5th segment. Pronotum: Dorsal disk cream except posterior margin dark brown. Lateral lobes black. FI, FII black with few yellow brown spots; knees yellow brown. TI, TII black with a faint yellowish ring; tarsomeres yellow brown, their distal part black. Legs III almost homogeneously brown. TIII serrulation: 5 inner and 9 outer spines above spurs; 5 inner and 7 outer spines between spurs. Tarsomeres III-1: 1 spine on dorsal inner edges, 3 spines on dorsal outer edges; 1 outer lateral spine. Abdomen homogeneously dark brown dorsally; lateral parts of tergites mottled with yellow brown; sternites homogeneously brown. Cerci yellow brown with dark brown spots.

Male: FW not reaching abdomen mid length. Dorsal field shorter than lateral field. FW colouration: Cells and veins homogeneously brown, a yellow brown sclerotized area around 1A and posterior to the plectrum; lateral field with orange longitudinal veins and dark brown transverse veins; few whitish cells between R and its bifurcations. FW venation ( Fig. 4 A): CuP absent, harp triangular, flat, without complete transverse vein; c1 cell wide, not crossed by a transverse vein; D alignment and mirror (d1) well differentiated, but mirror not rounded. Apical field restricted to a few cells in E alignment (e1-e3) and one cell in F alignment. Lateral field: latero-dorsal angle made by MP; distal part of MP weak, fused to MA; R bifurcated twice, strong until distal third, then faint and fused apically with MA; ventral part of lateral field with 6 longitudinal veins.

Male genitalia ( Figs 4 B, C): Close to that of A. brachypterus Pseudepiphallus not widened preapically, apex with a short, flat median process. Pseudepiphallic lophi forming lateral crests ventrally.

Female: unkwown.

Juvenile: unkwown.

Measurements. See Table 4.

Habitat and life history traits. A. minoris lives in forested areas in the leaf litter.

Behaviour. Mating behaviour not observed.

Calling song. unknown.

PronL PronW FWL FWW FIIIL FIIIW TIIIL OL Male holotype 2.7 3.9 3.3 2.9 10.4 3.6 8.9 -

Figures

FIGURE 4. Agnotecous minoris n. sp. Male FW venation (A), and male genitalia in ventral (B), and lateral (C) views. Abbreviations and symbols, see Material and methods. Scale bars: 1 mm.