Kaszab Zoltán (szerk.): A Magyar Természettudományi Múzeum évkönyve 67. (Budapest 1975)

Steinmann, H.: Brindleiana atlas gen. et sp. n. from SE Asia and taxonomical notes on Allodahliinae (Dermaptera, Forficulidae)

ANNALES HISTORICO-NATURALES MUSEI NATIONALIS HUNGARICI Toi nus (57. Budapest 1975. Brin die ia na atlas gen. et sp. n. from SE Asia and Taxonomical Notes on Allodahliinae (Dermaptera, Forfieulidae) by H. STEINMANN, Budapest Abstract — Dermapterans displaying a ledge-like rim on their elytra and previously considered as Anechura species were recently separated in the subfamily Allodahliinae. A new species and genus, deriving from Burma, is now added to the two known genera of the group : Brindleiana atlas gen. et sp. n. is described and treated in an identification key to all genera and species of the subfamily. With 14 figures. In 1902, VERHOEFF (Zool. Anz., 1902: 194) separated and under the name Allodahlia assigned to a new genus those Anechura SCUDDER species which display a ledge-like rim along the lateral margins of the pronotum. This highly charaeteristical plesiomorphous feature served as the basis for the elevation of the group to subfamily rank by later classifiers, and the Oriental Allodahlia VERHOEFF species, together with the palaearetic Eulithinus analis RAMBUR, are ever since considei'ed as the subfamily Allodahliinae. The species of the group had several times been studied by BURR, DE HAAN, BEYBIENKO, and BRINDLE, and the extremely well delimitable alliance is rather well known today. Phylogenetically, a certain relationship can be observed with the Timomenus BURR and Acanthocordax GÜNTHER species, relegated to the subfamily Opisthocosminae, in spite of their easy separation by external morphological characteristics. However, their mesosternum, body habit and the highly characteristic male cerci connect them with the Anechurids, and are separable only by the ledge-shaped rim of the elytra. The characteristic development of the cerci — observable in great outlines but in a simplified form also in the Anechuras — leaves no doubt that the Northern Oriental and Palaearetic species of the Anechuras are derivable from the Allodahliinae. Allodahliinae STEINMANN, 1974 Pronotum quadratic, lateral margins parallel or nearly so ; usually wide, wider than long, or only slightly longer than wide. Lateral margins of elytra with a ledgelike rim. Elytra shortened, rudimentary, wings absent, or elytra well developed and wings present. Type-genus: Allodahlia VERHOEFF, 1902 Key to genera 1 (4) Elytra shortened, about as long as pronotum, or slightly shorter; lateral margins with a well discernible but narrow and not lamelliform ridge. Wingless species. 2 (3) Scapus short, about as long as half distance on frons between scapi; bending onto eyes reaching their anterior margins. Basal section on inner margin of male cercus with a well discernible characteristic pair of teeth, margin without further teeth. Pygidium wide, lateral angles with an obtuse but robust peg, thereby pygidium trapezoidal. European Eulithinus HINCKS, 1935 Ann. Hist.-nat. Mus. Nat. Hung., 67, 1975