Nomia melanderi Cockerell is one of the most efficient pollinators of alfalfa in Eastern Oregon. Emergence begins in June, usually reaches its peak in early July, and may continue into early August. Male emergence precedes female emergence by four or five days. For the first few weeks of this time,...
The genus Ochodaeus Serville contains approximately sixty
species and is World wide in its distribution. One-half of these
species are known from the Nearctic and Neotropic regions.
Adults of six previously described species common to the
United States have been studied in detail. The mandibles, stridulatory
peg, and male genitalia...
The genus Lichnanthe Burmeister contains eight extant and one
fossil species which are strictly nearctic in distribution. The
subfamily Glaphyrinae, however, is distributed nearly world-wide.
Five species were previously described and three are described as
new herein. All eight extant species are described in detail herein,
synonomies are made current,...
The western cherry fruit fly, Rhagoletis indifferens
Curran, was studied to determine the suitability of the
sterile insect technique for its control. To obtain
insect material, field collection of maggots is preferred
to sifting of soil or rearing on artificial diet.
The western cherry fruit fly is strictly univoltine;
only...
Seventeen populations of Gila Baird and Girard are identified from the Alvord Basin of southeastern Oregon and northwestern Nevada. Gila in the Alvord Basin occupy a wide range of habitats, including warm springs, cool springs, creeks, reservoirs, and a thermal lake. These populations became isolated in remnant habitats when waters...
Rhyacophila is one of the largest genera of caddisflies, containing
about 465 species. Approximately 100 species are found in
North America with 83 occurring in the west, The larvae of 24
western North American species are associated for the first time,
making a total of 38 species for which larvae...