Matuanus bruneonervus Robillard, 2008

Robillard, Tony & Desutter-Grandcolas, Laure, 2008, Systematics of Matuanus Gorochov (Grylloidea, Podoscirtidae, Podoscirtinae) from New Caledonia: new data and the analysis of venation diversity, Mémoires du Muséum national d'Histoire naturelle 196, pp. 273-290 : 281-283

Matuanus bruneonervus Robillard n. sp.

Figs 6G, 10-13, 23-24, 27D

TYPE MATERIAL. — Holotype male ( MNHN-ENSIF 1103 ): New Caledonia, no precision, 1875 (137.75) (coll. Germain), MNHN.

TYPE LOCALITY. — New Caledonia (no precision).

OTHER MATERIAL EXAMINED. — 2 ♀ ( MNHN-ENSIF 1104-1105 ), New Caledonia, no precision (coll. A. Finot), identified Podoscirtus aff. rufidulus Saussure, 1878 by A. Finot, MNHN .

DESCRIPTION. — Small species, very similar to M. flavomaculatus but differing by male genitalia and coloration.

Head: black coloration posterior to median ocellus (Fig. 6G) smaller than in M. flavomaculatus , rest of vertex dark reddish brown with 1-3 faint brown bands medially and around the white line posterior to eyes; face uniformly brown, lighter ventrally, with yellow tentorial insertions between eyes, as in M. flavomaculatus ; a yellow spot below eyes (absent in M. flavomaculatus ). Scape brown, pedicel brown with yellow margin, first 5-10 antennal segments black, rest brown as in M. flavomaculatus .

Male: FW venation (Fig. 10). Dorsal field with 8 longitudinal veins. Bases of 1A-4A within a yellow sclerotization, that of 4A more important than in M. flavomaculatus . Intermedia area yellow and sclerotized. Bases of longitudinal veins bifurcating from CuA yellow. MP yellow, sclerotized in basal third. MA brown; difference to M. flavomaculatus . Sc yellow. R brown in holotype, bifurcations of R basally brown, then yellow.

Male genitalia (Figs 11-13): differing from M. flavomaculatus by smaller size and compact shape; apex of pseudepiphallus more separated from main part of sclerite indented posteriorly.

Female: FW venation. Dorsal field with 8 longitudinal veins; R brown basally then yellow, veins bifurcating from R almost entirely yellow. Ovipositor longer than hind wings; dorsal valve of apex with irregular striations on outer surface; ventral margin almost trilamellar (Fig. 27D).

Female genitalia: copulatory papilla well sclerotized, ring of the bilobate dorsally; triangular ventral plate wide.

FIGS 7-16. 7, male FW venation in M. flavomaculatus . 8, M. caledonicus . 9, M. azurensis . 10, M. bruneonervus . 11-13, male genitalia in ventral, dorsal and lateral views in M. bruneonervus . 14-16, M. azurensis . Symbols as in Figs 1-5. Scale bars = 1 mm.

MEASUREMENTS. — Holotype male. PronL: 1.8 mm; PronW: 2.7 mm; FWL: 11.4 mm; FWW: 2.4- 2 mm. ♀. PronL: 2.3-2.6 (2.4) mm; PronW: 3.1-4.1 (3.6) mm; FIIIL: 11.4-11.6 (11.5) mm; FIIIW: 2.8-2.9 (2.8) mm; TIIIL: 10.4 mm; FWL: 15-16.9 (15.9) mm; FWW: 2.9 mm; OvipL: 12.1-12.6 (12.3) mm.