Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 80. (Budapest 1988)

Steinmann, H.: A revision of the genus Acanthocordax Günther, 1929 (Dermaptera, Forficulidae)

S (7) Each branch of male forceps with distal part strongly curved; external paramere of male genitalia comparatively large (Figs 10—14). 9 (10) Distal part of male forceps more strongly curved (Fig. 10); male genitalia characteristic, basal part of virga directed inwards; external paramere as in Fig. 11 papuanus GÜNTHER, 1929 10 (9) Distal part of male forceps less strongly curved (Fig. 13); male genitalia simple, virga comparatively short; external paramere as in Fig. 14 spatuîaius RAMAMURTHI, 1967 Acanthocordax spinosus GÜNTHER 1929 Acanthocordax spinosus GÜNTHER: Mitt. zool. Mus. Berl. 15(1): 81, fig. 9 (male in dorsal view). — Terra typica: New Guinea (Type male: Mus. Naturkunde, Berlin). Male head blackish-brown, antennae brown, pronotum blackish, tegmina and wings reddishbrown; wings with a yellow spot on the inner margin near apex; abdomen reddish to blackishbrown; last tergite lighter in colour; forceps reddish-brown, darker basally. — Head comparatively short and broad; irons tumid, smooth, postfrontal and coronal sutures distinct; posterior margin convex. Eyes moderately small, shorter than the length of head behind eyes. First antennái joint very long, essentially longer than distance between antennái bases; second and rest typical, elongate and cylindrical. — Pronotum a little longer than broad, posterior angles and margin broadly rounded; median longitudinal furrow distinct. Tegmina and wings fully developed, tegmina with broadly rounded shoulders. — Abdomen elongated, lateral margins convex in dorsal view. Ultimate tergite large, sloping, simple. Each branch of forceps (Fig. 1) slender, rather swollen distally before the narrow spine-like part; dorsal surface with a sharp tooth medially. — Genitalia unknown. Female similar to male, but forceps straight, cylindrical in cross-section, tapering, simple. Length of body with forceps, in both sexes: 11.5-13 mm. Distribution: New Guinea. Figs 1-5. 1 = Male ultimate tergite with forceps of Acanthocordax spinosus GÜNTHER, 1929. — 2 = Male ultimate tergite with forceps of A. dorsalis BRINDLE, 1969, 3 = ditto, male genital armature, 4 = ditto, female forceps. — 5 = Holotype ultimate tergite with forceps of A. satanus sp. n. (Original).