. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 42 MELANDER AND BRUES. PSAMMOPHILA PACIFICA, sp. HOV. Male.—Length, 12 mm. Black shining, first, second and third abdom- inal segments bright ferruginous. Clothed with very long pubescence which is white upon the thorax and mixed with black upon the head, espe- cially upon the vertex and face. Head sparsely punctate except around ocelli where it is smooth. Antennae black, slender, moderately long. Face and clypeus to above antennae silvery pubescent. Clypeus broadly subtruncate. Mandibles indistinctly annulate with ferrugino
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 42 MELANDER AND BRUES. PSAMMOPHILA PACIFICA, sp. HOV. Male.—Length, 12 mm. Black shining, first, second and third abdom- inal segments bright ferruginous. Clothed with very long pubescence which is white upon the thorax and mixed with black upon the head, espe- cially upon the vertex and face. Head sparsely punctate except around ocelli where it is smooth. Antennae black, slender, moderately long. Face and clypeus to above antennae silvery pubescent. Clypeus broadly subtruncate. Mandibles indistinctly annulate with ferruginous. Eyes strongly convergent below, reaching nearly to base of mandibles. Pro- thorax and mesonotum sparsely coarsely punctured. Pleurae and sides of metathorax coarsely and densely punctured. Scutellum strongly longi- tudinally aciculate, the grooves widening out posteriorly to form a row of. FORE-WING OF PSAMMOPHILA PACIFICA. pits along the posterior margin. Posterior face of metathorax finely trans- versely aciculate. Coxae black, clothed with long white hairs which also extend to bases of femora. Tarsi slightly tinged with fuscous, thinly white pollinose. Abdominal petiole black, white pilose anteriorly. Abdomen very slender, first, second and third segments bright ferruginous, remainder shining black. External genital organs fuscous. Their lamellae with several stiff bristles interiorly and a brush of hairs externally. Anterior wings hyaline, brownish at tip, posterior one hyaline. Marginal cell ex- tending far beyond third submarginal cell, which is less than half as large as the second and barrel-shaped. Described from a male specimen collected by Miss Rose Patter- son at Pacific Grove, California, July 9, 1897. This species may be readily recognized by the venation of the wings, the strongly convergent eyes, white pubescence and very slender form. 1. P. valida Cress. 21 mm. Colo. 2. P. grossa Cress. 22-24 rnm. Texas. 3. P. lucluosa Sm. 17 mm. U. S. 4. P. argentifrons
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
