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

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

Acanthocordax papuanus GÜNTHER 1929 Acanthocordax papuanus GÜNTHER: Mitt. zool. Mus. Berl. 15 (1): 82; fig. 10 (male abdominal end with forceps). — Terra typica: New Guinea (Type male: Mus. Naturkunde, Berlin). Male apparently rather variable in colour; uniformly dark or blackish-brown, or with abdomen reddish; head and pronotum may be yellow or frons and pronotum blackish; tegmina darkbrown to reddish-brown, or with a large median yellow elliptical patch ; wing with a yellow spot on inner margin near apex; legs yellow. — Head of Acanthocordax-type; frons tumid, postfrontal and coronal sutures distinct, posterior margin convex in middle. Eyes large, but slightly shorter than length of head behind eyes. First antennái joint dark, very long, longer than distance between antenna! bases, remaining joints yellow, slender and cylindrical. — Pronotum longer than broad; antero-lateral angles each with a small tooth; lateral margins straight, parallel; posterior margin rounded; median longitudinal furrow well-marked. Tegmina and wings fully developed. — Abdomen fusiform or sometimes faintly widened to 8th tergite; ultimate tergite transverse, sloping, median part with a smaller depression near posterior margin. Forceps (Fig. 10) slender, elongate, branches cylindrical in cross-section; distal part more strongly curved; inner margins of distal part with a smaller but prominent tooth. — Genitalia (Fig. 11, gen. prep. No. 39, det. Dr. H. Steinmann) large; central parameral plate with parallel sides anteriorly, virga within genital lobe strongly curved basally; external parameres comparatively large, apices obtuse and directed a little inwards. Female very similar to male, but forceps (Fig. 12) straight, more or less trigonal in crosssection basally and medially, cylindrical apically. Length of body with forceps, in both sexes: 9.5-13 mm. Distribution: New Guinea : Papua and West Irian. Figs 11-15. 11= Male genital armature of Acanthocordax papuanus GÜNTHER, 1929, and 12 = ditto, female forceps. — 13 = Male ultimate tergite with forceps of A. spatulatus RAMAMURTHI, 1967, 14 = ditto, male genital armature, and 15 = ditto, female forceps (Original).