| OCR Text |
Show 148 Utah Academy of Sciences, Arts anci Letters [Vol. XV, The female genitalia, ventral view Fig. 2 and lateral view Fig. 3: is characteristic of members of this There are genus I have studied. some specific differences which aid in the separation of species. sty _ .... ----c.-- __ In this species the genitalia are of the elongate type, with well developed stylus (sty) and cox ites (c). The anus (au) and vulva (v) are found in the mem braneous tenth segment. In other species of this genus the styli coxites and eighth segment pos sess distinctive specific charac ters. The allotype a male, is more slender and elongate than the fe male, also more uniform in color, being dark chocolate without the flecking found in the female. Length as in the female 6.5 mm., breadth 2.9 mm., breadth of the thorax 2.3 mm. This species is common at the type locality, Aspen Grove, Mt. Timpanogos, Utah, elevation 6,800 feet. It is taken by sweep ing the nine-bark, Physocarpus (Greene), in June and July. Wasatchensis is closely re lated to tanneri described by Dr. Van Dyke from a unique col lected near Salt Lake City, in July, 1927, and argillous Van Dyke, 1935, also collected in malvaceus Figs. 2 and 3. Ventral and lateral views genitalia Dystobus wasatchensis. of It differs from tanneri Utah. and argillous in being larger, without the coarse punctures of the thorax, shorter antennae scape, flecking in the female and body configuration. The Holotype, No. 45, allotype and sixty-five paratypes are in the author's collection at Brigham Young University. In July, 1935, Dr. Van Dyke col lected a number of specimens of wasatchensis at Aspen Grove, which are now in his collection. |
