The First Records in Illinois of \u3ci\u3eHeliconius Charitonius\u3c/i\u3e (Lepidoptera: Heliconiidae) and \u3ci\u3ePhoebis Agarithe\u3c/i\u3e (Lepidoptera: Pieridae)

(excerpt) Our key to Illinois butterflies, exclusive of the skippers (Hesperiidae), was published in 1980. It includes those butterflies listed by Irwin and Downey in their 1973 Illinois checklist plus two species,Anaea aidea (Guerin-Meneville) (Nymphalidae) and Celastrina ebenina Clench (Lycaenidae), added to the state list after 1973

Annotated Records of Species of Pentatomoidea (Hemiptera) Collected at Lights

Records of specimens of Pentatomoidea collected at various light sources in Alabama, Arizona, Florida, Georgia, Illinois, Louisiana, and Texas are presented. Of the 51 species and subspecies reported, about 75% belong to the Pentatomidae

A List of the Butterflies (Lepidoptera: Papilionoidea) of the La Rue-Pine Hills Ecological Area

A survey of the adult butterfly fauna of the La Rue-Pine Hills Ecological Area, Union County, Illinois, was conducted from March through July in 1979, and March through November in 1980. Forty nine species and subspecies were collected including all six papilionids known to occur in Illinois. Notes were taken on seasonal flight periods and butterfly-plant associations

Device physics of thin-film polycrystalline cells and modules: Phase 1 annual report: February 1998--January 1999

This report describes work done by Colorado State University (CSU) during Phase 1 of this subcontract. CSU researchers continued to make basic measurements on CI(G)S and CdTe solar cells fabricated at different labs, to quantitatively deduce the loss mechanisms in these cells, and to make appropriate comparisons that illuminate where progress is being made. Cells evaluated included the new record CIGS cell, CIS cells made with and without CdS, and those made by electrodeposition and electroless growth from solution. Work on the role of impurities focused on sodium in CIS. Cells with varying amounts of sodium added during CIS deposition were fabricated at NREL using four types of substrates. The best performance was achieved with 10{sup {minus}2}--10{sup {minus}1} at% sodium, and the relative merits of proposed mechanisms for the sodium effect were compared. Researchers also worked on the construction and testing of a fine-focused laser-beam apparatus to measure local variations in polycrystalline cell performance. A 1{micro}m spot was achieved, spatial reproducibility in one and two dimensions is less than 1 {micro}m, and photocurrent is reliably measured when the 1{micro}m spot is reduced as low as 1-sun in intensity. In elevated-temperature stress tests, typical CdTe cells held at 100 C under illumination and normal resistive loads for extended periods of time were generally very stable; but those held under reverse or large forward bias and those contacted using larger amounts of copper were somewhat less stable. CdTe cell modeling produced reasonable fits to experimental data, including variations in back-contact barriers. A major challenge being addressed is the photovoltaic response of a single simple-geometry crystallite with realistic grain boundaries

Characterization and Analysis of CIGS and CdTE Solar Cells: December 2004 - July 2008

The work reported here embodies a device-physics approach based on careful measurement and interpretation of data from CIGS and CdTe solar cells

Vertical dispersion of twospotted spider mites on hops throughout the growing season

Studies were conducted in 1968 and 1982 to determine the vertical dispersion of twospotted spider mites, Tetranychus urticae Koch, on hops during the growing season. Data from both years were combined.Twospotted spider mites were primarily on the lower half of the plants from May, when the plants initiated growth, through early July. By early-to mid-August most of the spider mites were on the upper half of the plants. Since the apical growth of hops is very heavy at this time, conventional, contact spray pesticides cannot reach these mites. However, systemic pesticides may be effective for mite control