Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 74. (Budapest 1982)

Steinmann, H.: A revision of the genus Ancistrogaster Stal, 1855 (Dermaptera, Forficulidae)

Ancistrogaster mendesi MOREIRA, 1930 (Fig. 13) Ancistrogaster mendesi MOREIRA, 1930, Inst. Biol. Def. Agr., 7: 28, fig. 6 (male). — Holotype male: Instituto Biologico de Itatiaia, Rio de Janeiro. Male colour dark brownish black. Head black, tegmina and wings unicolorous. Head rounded; slightly depressed at vertex. Postfrontal and coronal sutures present. Eyes smaller, more or less as long as the length of head behind eyes. Antennae 11-jointed; first joint long, slightly longer than distance between antenna! bases. Pronotum quadrate, lateral margins parallel-sided, posterior margin rounded. Tegmina and wings well developed. Abdomen broad, sides of tergites 4-7 with well developed spines, as in fig. 13. Ultimate tergite smooth, transverse, posterior margin with two protuberances at bases of forceps. Forceps slender, cylindrical, slightly curved at median section; inner margins with small but prominent tooth. Male genitalia unknown. Female similar to male, but sides of abdomen without Iaterial spines, and forceps slenderer, tapering, contiguous. Length of body with forceps: male 20-22 mm, female: 15,5-19 mm. Distribution : Brazil. Ancistrogaster scabiosa sp. n, (Figs. 14— 15) Male colour reddish-brown and brown. Head, ultimate tergite and forceps yellowish brown; pronotum castaneous. Head with characteristic angles posteriorly; postfrontal and coronal sutures distinct. Eyes comparatively small, more or less as long as the length of head behind eyes. Antennae broken in holotype. First joint long, slightly longer than distance between antennái bases. Pronotum quadrate, lateral margins narrowed posteriorly; posterior margin rounded. Tegmina and wings well developed; wings yellow basally. Abdomen depressed, sides of abdominal tergites 4-7 with prominent lateral spines; the lateral spine 5 bifurcated; ultimate tergite transverse; posterior margin straight, but a little concave at median section. Forceps (Fig. 14) cylindrical, inner margins with two small but prominent teeth at basal section; branches of forceps curved medially, apices pincers. Genitalia (Fig. 15) of Ancistrogaster-type, central parameral plate narrow, virga within genital lobe sclerotized, with specific curvature basally. Length of body with forceps: 13,5 mm. Female unknown. Holotype male: Venezuela, Merida, gen. prep. No. 769, det. Dr. H. STEINMANN. — Deposited in the Hungarian Natural History Museum, Budapest. Figs 13-16. 13 = Posterior abdominal portion of holotype of Ancistrogaster mendesi MOREIRA, 1930. — 14 = Posterior abdominal portion of holotype of A. scabiosa sp. n., and 15 = genital armature of holotype of A. scabiosa sp. n. — 16 = Abdominal end with forceps of cotype of A. spinax DOHRN, 1862 (Original, except fig. 13, after MOREIRA) 6 Természettudományi Múzeum Évkönyve 1982