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

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

Ancistrogaster championi BORMANS, 1893 (Fig. 7) Ancistrogaster championi BORMANS, 1893, Orthoptera, in Biol. Centr.-Amer., 1: 10. — Holotype male: British Museum (Nat. Hist.), London. — Vlax championi (BORMANS); BURR, Trans. Ent. Soc. London, 1907: 108. — Praos championi (BORMANS); POPHAM and BRINDLE, 1968, Entomologist, 101: 197. Male colour dark reddish black, tegmina and wings dark brown, legs yellowish brown. Head with well marked postfrontal and coronal sutures. Pronotum more or less quadrate, but posterior margin rounded; lateral margins parallel-sided. Tegmina and wings fully developed. Abdomen depressed ; sides of abdominal tergites 4-7 with very small lateral spines. Ultimate tergite broad, with very prominent dorsal protuberances laterally Forceps slender (Fig. 7), cylindrical; inner margins with one basal, and two median teeth, apices of forceps pincers. Male genitalia unknown to me. Female similar to male, but sides of abdominal tergites without spines, and forceps slenderer which has inner margins crenulate. Lenght of body with forceps: male: 17,5-19,5 mm, female: 18-20 mm. Distribution : Costa Rica and Panama. Ancistrogaster variegata (DOHRN, 1865) (Figs. 8—9) Opisthocosmia variegata DOHRN, 1865, Stettin ent. Ztg. 25: 78. — Holotype male: Naturhistorisches Museum, Wien. — Ancistrogaster variegata (DOHRN); BORMANS, Das Tierreich, 11: 91. — Forjicula appendiculata CHARPENTIER, apud DOHRN. ibidem, 26: 78. — Ancistrogaster falcifera REHN 1905, Proc. U. S. Nat. Mus., 29: 510. Male dark reddish black. Head depressed and a little elongated. Pronotum slightly longer than broad; lateral margins narrowed posteriorly. Tegmina and wings fully developed; its latter with yellow patches laterally. Abdomen strongly expanded medially; lateral spines of abdominal tergites 4-7 very broad, prominent (Fig. 8); ultimate tergite transverse, smooth, without dorsal protuberances. Forceps specific, oval, trigonal, ventral keels at inner margins crenulate; apices of forceps pincers. Male genitalia (Fig. 9, gen. prep. No. 768, det. Dr. H. STEINMANN) of Ancistrogaster-type, central parameral plate broad medially, and narrowed apically; virga within genital lobe with characteristic basal vesicle; external parameres very small. Female similar to male, but abdomen slender, without lateral spines, and forceps simple, tapering, contiguous. Lenght of body with forceps: male: 16-19 mm, female: 17,5-18,5 mm. Distribution : Central America, Mexico to Panama, and Venezuela, and Peru. Figs 5-8. 5 = Posterior part of abdomen with forceps of holotype of Ancistrogaster alfari BORELLI, 1906, 6 = genital armature of holotype. — 1 — Posterior part of abdomen with forceps of A. championiBORMANS, 1893, and 8 = A. variegata (DOHRN, 1865) (Original)