Showing papers by "Charles A. Triplehorn published in 1983"

A New Species Of Adelina Dejean From The British virgin-Islands

Abstract: — Adelina mystax, new species, is described from Anegada, British Virgin Islands. The remarkable structure of the male clypeus and the aedeagus are illustrated. Spilman (1973) presented convincing evidence that Adelina Dejean is the valid name for a genus of cucuj id-like tenebrionids usually listed under the generic name Doliema Pascoe. Ardoin (1977) apparently missed Spilman's note, since he described seven new species of the genus, all under the name Doliema. Wehave used Ardoin's key to the males of American species (he did not prepare keys for the females) and find them, along with the illustrations, very usable. Wewere surprised, therefore, to find the following new species among Adelina collected by the junior author in the Virgin Islands. Wewish to describe it at this time to make the name available for inclusion in a subsequent publication on the Virgin Island Tenebrionidae. Adelina mystax Triplehorn and Ivie, NewSpecies Types.— Holotype, 3, allotype 9, British Virgin Islands, Anegada, 23 August 1980, M. A. Ivie, deposited in the National Museum of Natural History, Washington, D.C. (Type No. 100375). Description of holotype, male.— Body elongate, parallel-sided, flattened, uniformly light reddish brown, integument translucent. Head with clypeus scarcely delimited from frons except laterally; epistomal margin broadly truncate and with a narrow, tapering, hornlike process arising from each side of clypeus at lateral margin, processes strongly divergent, recurved and directed slightly caudad (Fig. 1); genae above antennal insertions convex and drawn out into acute, toothlike reflexed projections; no toothlike projections beneath the dorsal projections; surface of head rather coarsely and densely punctured between eyes; vertex very minutely punctate; antenna relatively short, extending caudad only about "A length of elytra. Pronotum strongly transverse, more than twice as broad as long, sides strongly arcuate and slightly sinuate in basal V3; apical margin broadly and deeply emarginate, basal margin bisinuate (straight along anterior margin of scutellum), apical angles obtusely rounded, basal angles almost rectangular; surface finely and sparsely punctate on disc, punctures much coarser laterally, a deep, pigmented fovea on each side near base. Prohypomeron finely colliculate, coarsely, nearly confluently punctate except laterad of procoxae; a series of curved parallel wrinkles VOLUME85, NUMBER2 273