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

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

ANNALES HISTORICO-NATURALES MUSEI NATIONALIS HUNGARICI Tomus 80. Budapest, 1988 p. 51-56. A revision of the genus Acaníhocordax Günther, 1929 (Dermaptera, Forficulidae) by H. STEINMANN, Budapest H. STEINMANN: A revision of the genus Acanthocordax Günther, 1929 (Dermaptera, Forficulidae). — Annls hist.-nat. Mus. natn. hung. 1988 SO: 51-56. Abstract — All known species of Acanthocordax are described based on external morphology. Their systematic revision and the description of the male genital apparatus are given along with a new species: Acanthocordax satanus sp. n. from New Guinea. With 15 figures. Acanthocordax GÜNTHER 1929 Acanthocordax GÜNTHER: Mitt. zool. Mus. Berl. 15 (1): 80. — Species typica: Acanthocordax spinosus GÜNTHER, 1929 (original designation). 1933 Stenixus HABARD: Mem. Qd. Mus. 10: 154. — Species typica: Stenixus rhachynotus HEBARD, 1933 (original designation). 1969 Acanthocordax : BRINDLE, Entomologist's month. Mag. 105: 275 with Stenixus HEBARD, proposed synonymy with Acanthocordax GÜNTHER, 1929. Slender and elongate species. Antennái joints greatly elongate and more or less cylindrical. Eyes normally developed. Pronotum specific, relatively small, quadrate or longer than broad ; anterolateral angles produced into teeth or spines; posterior part of pronotum reflexed over base of tegmina. Tegmina and wings well or fully developed. Legs slender. Abdomen generally fusiform, ultimate tergite sloping. Male forceps slender, more or less cylindrical in cross-section, dorsal surface with or without tooth. Forceps of female with branches simple, straight and contiguous. Distribution: New Guinea and Bismarck Archipelago. IDENTIFICATION KEY TO THE SPECIES 1 (2) Pronotum with pronotal spines greatly elongate; distal part of each branch of male forceps strongly narrowed (Fig. 1) spinosus GÜNTHER, 1929 2 (1) Pronotum with pronotal spine small; distal part of male forceps not strongly narrowed. 3 (6) Pronotum quadrate or almost so; each branch of male forceps with a smaller or larger dorsal tooth. 4 (5) Dorsal tooth of male forceps very long and straight, directed upwards (Fig. 2); external paramere of male genitalia comparatively large (Fig. 3) dorsalis BRINDLE, 1969 5 (4) Dorsal tooth of male forceps short, strongly curved, directed inwards (Fig. 5); external paramere of male genitalia comparatively short (Fig. 7) satanus sp. n. 6 (3) Pronotum longer than broad; each branch of male forceps without a dorsal tooth. 7 (8) Each branch of male forceps straight, except at apices, distal part not strongly curved (Fig. 8); external paramere of male genitalia comparatively short (Fig. 9) rhachynotus (HEBARD, 1933)