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

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

Acanthocordax dorsalis BRINDLE 1969 Acanthocordax dorsalis BRINDLE: Entomologist's month. Mag. 105: 276, fig. 1 (male in dorsal view), fig. 2 (male abdominal end with forceps in lateral view). — Terra typica: New Guinea (Type male : Manchester Mus.). Male almost uniformly reddish-brown or lighter; antennae, legs and forceps reddish or yellowish ; extreme apex of inner margin of wings, yellow. — Head transverse, tumid, but depressed along lines of sutures; posterior margin straight. Eyes comparatively large, but shorter than the length of head behind eyes. Antennái joints long, first joint almost cylindrical, much longer than distance between antenna! bases; second quadrate, third joint nearly four times as long as broad; fourth joint equal in length to third. — Pronotum quadrate or almost so; lateral margins parallel, posterior margin convex; antero-lateral angles with a small tooth on each; posterior part of pronotum reflexed over base of tegmina; median longitudinal furrow indistinct. Tegmina and wings fully developed, reaching to beyond fourth tergite, corriaceous, smooth. — Legs very long and slender, femora only slightly broadened. Basal joint of tarsi long and cylindrical, longer than second and third combined. — Abdomen fusiform, tergites coriaceous; lateral glandular folds on third tergite small, those on fourth tergite large and prominent. Ultimate tergite narrow, transverse, slightly narrowed posteriorly. Each branch of forceps (Fig. 2) slender, slightly widened at extreme apex; inner margins with small isolated tooth or tubercle towards base; distal part evenly narrowed to apex, divergent basally, thence convergent to apex; a large dorsal tooth just beyond midpoint. — Genitalia (Fig. 3, gen. prep. No. 536, det. Dr. H. Steinmann) normally developed; central parameral plate comparatively short, narrowed basally, virga within genital lobe with strongly curved section basally; external parameres moderately large, obtuse. Female very similar to male, but forceps (Fig. 4) simple, branches a little depressed in crosssection basally, cylindrical medially and apically; straight except near apex. Length of body with forceps: male: 10-11.5 mm, female: 9-10.5 mm. Distribution: New Guinea. Acanthocordax satanus sp. n. Male general colour yellowish-brown; head, median part of pronotum dark-brown; antennae and tegmina light-brown, and legs yellow. — Head comparatively large, broader than the width of pronotum, tumid, shining; postfrontal and coronal sutures distinct; posterior margin concave in the middle. Eyes prominent, but shorter than the length of head behind eyes. Antennae with elongate Figs 6-10. 6 = Forceps of the holotype of Acanthocordax satanus sp. n. in lateral view, and 7 = ditto, male genital armature. 8 = Male ultimate tergite with forceps of A. rhachynotus (HEBARD, 1933), and 9 = ditto, male genital armature. — 10 = Male ultimate tergite with forceps of A. papuanus GÜNTHER, 1929 (Original).