^ / (S fc>, 2S LIBRARY MAR I 2 1963 HARVARD The Great Basin Naturalisf ^'^^ Published at Provo, Utah by Brigham Young University Volume XXVII November 30, 1967 No. 3 NEW RECORDS AND SPECIES OF NEOTROPICAL BARK BEETLES (SCOLYTIDAE: COLEOPTERA), PART II ' Stephen L. Wood-While preparing a taxonomic review of the bark and ambrosia beetles (Scolytidae) of Costa Rica it was necessary to examine all available species of this group from Mexico, all of Central America, and northern South America. As a result, a large number of species new to science were recognized from areas outside of Costa Rica. In order to make names available for these species to facilitate this and other work. 23 species and one genus (Stegomerus) new to science are described below. The new species represent the genera Loganius (1), Scolytus (1). Scolytodes (10), Stegomerus (5), Xyleborus (3), Corthylus (1 ). and Tricolus (2). The type series of these species were collected in the following countries: Mexico (6), Guatemala (6), Honduras (3). Costa Rica (8). Panama (8), Colombia (2), and Bolivia ( 1 ) . One species occurred in two countries and five were col-lected in three countries. Loganius exilis, n. sp. This species is rather closely related to liratus Wood, but it is dis-tinguished by the less strongly serrate costal margins of the elytral declivity, by the more strongly elevated alternate interstriae on the elytral declivity, by the poorly developed funicular tuft of hair, and by the somewhat narrower frons. Male. — Length 1.4 mm. (paratypes 1.3-1.6 mm.). 2.7 times as long as wide; color very dark brown. Frons flattened or very feebly concave on lower half, convex above; surface rather coarsely, closely, deeply punctured in im-pressed area, more sparsely punctured above; median third of epis-tomal margin bearing a shining, elevated, procurved carina as in liratus; vestiture limited to impressed area, consisting of abundant, erect, stout, uniformly rather short setae. 1. Part of the field work relating to tins study was sponsored by rcsearcli grants GB-5?2 and GB-5()78 from the National Science Foundation. 2. Department of Zoology and Entomology, Brigliam Young University, Provo, Utah. Scolytoidea Contribution No. 35. 119
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