Distribution and ecology of freshwater Ostracoda (Crustacea) collected from springs of Nevada, Idaho, and Oregon: a preliminary study

Fourteen freshwater ostracod species collected from 24 springs in Nevada, Idaho, and Oregon between 1991 and 1994 were classified. Their ecology, based on major water parameters (i.e., temperature, dissolved oxygen, pH, conductivity), and biogeographical distribution in North America were studied. Among these 14 species, 9 ( Ilyocypris bradyi , I. gibba , Darwinula stevensoni , Candona candida , Heterocypris incongruens , Herpetocypris reptans , H. chevreuxi , Prionocypris canadensis , P. longiforma ) are new records for Nevadas ostracod fauna, while 3 ( H. reptans , P. canadensis , and Cypria turneri ) are new species for Oregon. H. reptans , P. canadensis , and Heterocypris salina are also recorded as new for the ostracod literature of Idaho. Scottia pseudobrowniana , collected from Nevada, is a new ostracod species for the United States. The occurrence of 5 Holarctic species in the northern Great Basin area may suggest a possible historical relationship with the European ostracod fauna.     

Comparative floral biology of Penstemon eatonii and Penstemon cyananthus in central Utah: a preliminary study

A comparison of the floral visitors of two closely related plant species, Penstemon cyananthus and P. eatonii suggests that flower shape and color may affect the number and type of pollinators, and the ability of the plant to set fruit. Penstemon cyananthus, which is most attractive to hymenopteran visitors, has a blue flower, large in diameter, that is positioned as a convenient “landing pad.” Although many types of insects visit the flower, the transport of pollen directly to flowers of another individual of the same species is somewhat inefficient, since fruiting success is low (66.7 percent). The tubular red flowers of P. eatonii are narrow and droop downward from the stem. The nectar is accessible to a specific and well-adapted visitor, the hummingbird. This less promiscuous, bird-pollinated species sets fruit more successfully (82.4 percent) than P. cyananthus.     

Records of exotic fishes from Idaho and Wyoming

One exotic poeciliid ( Xiphophorus helleri ) and two cichlids ( Cichlasoma nigrofasciatum and Tilapia mossambica ) are recorded as recently established in thermal springs and their outflows in southern Idaho. Misgurnus anguillicaudatus was collected and is considered as established in the Boise River system. Poecilia mexicana and juvenile hybrid tilapias are recorded from the Bruneau River at Bruneau Hot Springs, Idaho. A reproducing population of X. helleri was found in a spring within the boundaries of Grand Teton National Park, Wyoming. Poecilia reticulata , previously reported from one spring each in Idaho and Wyoming, is recorded from a second spring outflow in Idaho.     

Utah plant novelties in Cymopterus and Penstemon

Cymopterus higginsii and Penstemon atwoodii are named and described from materials collected in the Kaiparowits Plateau vicinity of eastern Kane County, Utah. Habitat, distribution, and probable affinities are outlined.     

An ecological and taxonomic investigation of Peromyscus maniculatus serratus in Idaho

Twenty - two sites in central Idaho were sampled to determine the geographic range of Peromyscus maniculatus serratus. Isolating mechanisms which exist between the P. maniculatus subspecies of region require further investigation.     

Haplopappus alpinus (Asteraceae): a new species from Nevada

The new species, Haplopappus alpinus of section Tonestus, is formally described and illustrated. It is endemic to the high mountains of central Nevada. Vegetative and floral morphology of related species is detailed. The new species appears to be most closely related to H. eximius but also demonstrates close affinity to H. aberrans (all three are diploids with n = 9).     

Herpetological notes from the Nevada Test Site

During the years 1965 – 1971, considerable data were gathered that included information concerning species not previously reported. These included Chionactis occipatalis talpina, Coleonyx variegatus utahensis, Crotaphytus collaris bicinctores, Cnemidophorus tigris tigris, and Sauromalus obesus obesus. Although complete information concerning their life histories is not reported, some information concerning growth and reproduction is included.     

Habitat affinities of bats from northeastern Nevada

Bat surveys were completed in 6 habitat types in eastern Nevada between 1980 and 1994. Twelve species of bats and 578 individuals were identified from 33 trap localities in 144 trap nights. There were weak correlations between bat species richness and January maximum temperatures (0.728, P P Antrozous pallidus (from central Nye County north to the Nevada-Idaho border, approximately 450 km), Tadarida brasiliensis (approximately 350 km north), and Pipistrellus hesperus (approximately 350 km north). Also, the presence of Lasionycteris noctivagans, Lasiurus cinereus , and Corynorhinus townsendii was confirmed.     

New Sclerocactus (Cactaceae) from Nevada

Named as new is Sclerocactus schlesseri Heil & Welsh. The taxon is described and its relationships discussed.     

New Sclerocactus (Cactaceae) from Nevada

Described is Sclerocactus blainei Welsh & Thorne, sp. nov. from Nye County, Nevada.        

Miscellaneous plant novelties from Alaska, Nevada, and Utah

Described as a new species is Oreoxis trotteri Welsh & Goodrich from Utah.      

Noteworthy flea records from Utah, Nevada, and Oregon

Collections from several scattered western localities have (1) extended the ranges in Nevada of two sagebrush vole fleas, Oropsylla bacchi johnsoni and Megabothris clantoni prince , (2) provided a second record for Utah of the rarely collected flea, Delotelis telegoni , and (3) included additional examples of unusual and seldom reported host-flea relationships for the area.     

A new species of Penstemon (Scrophulariaceae) from the Uinta Basin of Utah and Colorado

Named as a new species is Penstemon albifluvis J. L. England. The species is known from the Uinta Basin of Utah and Colorado.     

Records of stoneflies (Plecoptera) from Nevada

Distributional data are presented for 13 species of Nevada stoneflies including eight species new to the state list. A checklist of 30 species confirmed for Nevada is included.     

A new species of Penstemon (Scrophulariaceae) from the Uinta Basin, Utah

Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} Described as a new species is Penstemon flowersii Neese & Welsh from Utah. An illustration is provided. The species is named in honor of the late Seville Flowers, professor of botany at the University of Utah.       

Checklist of Tiger Beetles from Idaho (Coleoptera: Cicindelidae)

Sixteen species of Tiger Beetles are listed for Idaho, along with the counties of occurrence for each species. Three species are placed in a checklist of Idaho species for the first time: Cicindela depressula depressula Casey, Cicindela parowana wallisi Calder, and Cicindela decemnotata decemnotata Say.         

New taxa and nomenclatural changes in Utah Penstemon (Scrophulariaceae)

New taxa include Penstemon angustifolius Pursh var. dulcis Neese, P. leonardii Rydb. var. higginsii Neese, P. scariosus Pennel var. cyanomontanus Neese, and P. thompsoniae (Gray) Rydb. var. desperatus Neese. New nomenclatural combinations include: Penstemon acaulis L. O. Williams var. yampaensis (Penl.) Neese, P. duchesnensis (N. Holmgren) Neese, P. leonardii Rydb. var. patricus (N. Holmgren) Neese, and P. pachyphyllus Gray ex Rydb. var. mucronatus (N. Holmgren) Neese.     

A new species of Cryptantha (Boraginaceae) from Nevada

Described as new is Cryptantha welshii Thorne & Higgins from the White River Valley of Nye County, Nevada.     

New records and species of Tetranychidae and Tenuipalpidae (Acarina) from Utah and Idaho

Twenty-three species of spider mites (Tetranychidae) are recognized for Utah and Idaho; three of these are described as new: Bryobia neoribis, Pseudobryobia knowltoni, and Schizotetranychus agropyron. Eleven species of Tenuipalpidae are recorded.     

Western diamondback rattlesnake in southern Nevada: a correction and comments

Reports of the occurrence of Crotalus atrox Baird & Girard from Nevada are reviewed. There is no evidence to support the occurrence of this species in Nevada.