Boros István (szerk.): A Magyar Természettudományi Múzeum évkönyve 8. (Budapest 1957)

Strohecker, H. F.: New species of Endomychidae (Coleoptera) in the collections of the Hungarian National Museum and other institutions

ANNALES HISTORICO-NATURALES MUSEI NATION ALIS HUNGARICI Tomus VIII. Series nova 1957 New Species of Endomychidae (Coleoptera) in the collections of the Hungarian National Museum and other institutions By H. F. STEOHECKER, University of Miami A lot of about 1300 endomychids sent to for study by Dr. Zoltán Kaszab of the Magyar Nemzeti Múzeum includes specimens of many species not yet described. In reporting on this collection I also present descriptions of a few novae in the collections of Deutsches Entomologisches Institut, the Museum G. Frey, the Bayerischen Staatssammlung, the U. S. National Museum and Cornell University. For opportunity to study this material I acknowledge the courtesy of Dr. Hans Sachtleben, Mr. Georg Frey, Mr. Heinz Freude and Dr. Henry Dietrich. Especial thanks are due Dr. Kaszab. In addition to submitting the notable collection mentioned above he has permitted me to study the types of some species described by C s i k i and by Frivaldszky. Dr. Delkeskamp has given indispensable help in allowing me to examine the types of many species of Anidrytus, Epopterus and Stenotarsus in the Gerstaecker material. Senior Scientific Officer J. Balfour — Browne of the British Museum has loaned specimens of African Indalmus and, with his usual helpfulness, has examined certain endomychid types in his care. The measurements cited are in millimeters and, except for those over 10 mm., have been made by ocular micrometer. In the case of measurements of the pronotum the width, where not otherwise indicated, in across the greatest breadth ; the length is along the midline. The notation „max. width" indicates the greatest breadth of the elytra from margin to margin, excluding humeral prominences and spines. Genus Bystus Thomson Bystus foveatus sp. n. Fig. 1. The nearly hemispherical shape of this insect is typical of the genus. Diagnostic caharacter are to be found in the structure of the antenne and pronotum. The antennae are ten-jointed and of ferruginous color except the three club joints, which are black. Joints 1 and 2 are stout, 3 slender, 4—7 subequal in length to 3 but progressively stouter, 8 and 9 similar in shape and size, obconic, longer than broad, 10 evenly widened from its base, longer than wide with the apex slightly emarginate. On each side of the base of the pronotum is a round fovea which opens laterally into a sharply impressed groove (lateral sulcus). This sulcus runs forward to beyond the middle of the pronotum and its apex is abruptly recurved. Both pronotum and elytra are minutely punctured and covered with a semi-erect, coppery pubescence. Length 2.4. In antennái structure B. foveatus is most like B. limbatus (Gorham) of Mexico but that species has the elytra bi-colored and the last antennái joint scarcely longer than wide. B. seminulum (Gorham) from French Guiana is more coarsely punctured and the first two club joints of the antennae are broader than long.