. Memoirs of the American Entomological Society . allotype, and 6 3, 17 2, and 2exuvia; paratypes, TEXAS, El Paso Co., 5-10 mi. S. of El Paso, on rd. to Marathon,in Tamarix along irrigation ditch, 22/IV/1939, J. A. and H. H. Ross (INHS). Ad-ditional specimens —COLORADO: Huerfano Co., La Veta Pass, 21/VII/1938,D. J. and J. N. Knull, 1 $ (INHS). Distribution. — USA: COLORADO and TEXAS (Fig. 2). Diagnosis and Discussion. — /. jewetti is closest to /. longiseta, andfemales and nymphs cannot be separated (see discussion under /. longi-seta). This rare species is restricted to Texas and Colorado. At
. Memoirs of the American Entomological Society . allotype, and 6 3, 17 2, and 2exuvia; paratypes, TEXAS, El Paso Co., 5-10 mi. S. of El Paso, on rd. to Marathon,in Tamarix along irrigation ditch, 22/IV/1939, J. A. and H. H. Ross (INHS). Ad-ditional specimens —COLORADO: Huerfano Co., La Veta Pass, 21/VII/1938,D. J. and J. N. Knull, 1 $ (INHS). Distribution. — USA: COLORADO and TEXAS (Fig. 2). Diagnosis and Discussion. — /. jewetti is closest to /. longiseta, andfemales and nymphs cannot be separated (see discussion under /. longi-seta). This rare species is restricted to Texas and Colorado. Attempts tocollect additional specimens from the type locality have been unsuccessful,and the population may now be extinct, due to the heavy use of pesticidesin the irrigation ditches and canals in that area (Szczytko and Stewart1976). No life history or general biology data is available. Emergence occursin the middle of Apr. in Texas, and the middle of Jul. in Colorado, basedon the specimens examined. S. W. SZCZYTKO & K. W. STEWART 19.
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