. Bulletin. Natural history; Natural history. September, 1942 Prison: North American Plecoptera 249 series of nivalis are known to be in exist- ence. It seems that the best interests of nomenclature and taxonom\' will be served by using the name of nuiura for this spe- cies. It has been interesting to find, in a large series of specimens from Oregon, adult and nymphal specimens which I cannot satisfactorily separate from niaiira material taken in eastern North America (Frison 1942). Slight differences in wing color seem to exist, but characters of this nature are apt to be variable. Taeniopter
. Bulletin. Natural history; Natural history. September, 1942 Prison: North American Plecoptera 249 series of nivalis are known to be in exist- ence. It seems that the best interests of nomenclature and taxonom\' will be served by using the name of nuiura for this spe- cies. It has been interesting to find, in a large series of specimens from Oregon, adult and nymphal specimens which I cannot satisfactorily separate from niaiira material taken in eastern North America (Frison 1942). Slight differences in wing color seem to exist, but characters of this nature are apt to be variable. Taeniopteryx maura is common in parts of Minnesota, and no doubt it will be found eventually in states or Canadian provinces east of Oregon and west of Minnesota. The species maura (^ nivalis and mau- ra) has been previously recorded from the District of Columbia, Illinois, Maine, Maryland, Massachusetts, New Hamp- shire, New York, North Carolina, Nova Scotia, Pennsylvania and Virginia. To this list I can now add the states of Con- necticut, Florida, Georgia, Indiana, Iowa, Kentucky, Michigan, Minnesota, Mis- souri, Ohio, Oklahoma, Oregon, Tennes- see, West Virginia and Wisconsin. Taeniopteryx parvula Banks Taeniopteryx parvula Banks (1918, p. 7). Original description, c^ . Taeniopteryx parvula Frison (1929, p. 383, and 1935rt, p. 345). Additional descriptions and records. The typic series of parvula consists of two males, No. 10,049, in the collection of the Museum of Comparative Zoology. One of these is from "Washington, D. C," and the other from "Peach Grove. Aedeagus OOBSAL VIEW SUBANAL LOBE. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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