Charles H Ray

Charles H Ray
Auburn University | AU · Department of Entomology and Plant Pathology

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34
Publications
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204
Citations
Introduction
Skills and Expertise

Publications

Publications (34)
Article
Full-text available
Many social species show variation in their social structure in response to different environmental conditions. For example, colonies of the yellowjacket wasp Vespula squamosa are typically headed by a single reproductive queen and survive for only a single season. However, in warmer climates, V. squamosa colonies sometimes persist for multiple yea...
Article
Full-text available
Matsucoccus krystalae Ahmed and Miller, new species, (Hemiptera: Coccomorpha: Matsucoccidae) is described based on morphological characters of adult females and third-instar males. We designate the lectotype of Matsucoccus alabamae Morrison. Matsucoccus alabamae Morrison and M. gallicolus Morrison are redescribed, also based on adult females and th...
Article
Full-text available
Alabama is one of the most speciose states in the United States, yet many common groups of organisms, including assassin bugs (Hemiptera: Heteroptera: Reduviidae), have yet to be fully documented. The purpose of this manuscript is to identify all known assassin bug species occurring in the state using literature records and specimens from natural h...
Research
Full-text available
The kudzu bug, Megacopta cribraria (F.) (Heteroptera: Plataspidae), is an invasive insect pest introduced from Asia in 2009 that poses a threat to soybeans (Glycine max [L.] Merr. [Fabales: Fabaceae]) and other legume crops in the United States. Initially discovered in Georgia, M. cribraria rapidly expanded across the southeast until 2014 when a si...
Article
Knowledge of Alabama's Araneae fauna is limited, with estimates ranging from 580 to 1000 species within the state. Until now, the most recent surveys were conducted in the 1940s and focused on 3 families. Studies elsewhere indicate that spider diversity is correlated to habitat and plant diversity. Alabama's diversity of ecoregions and flora should...
Article
Full-text available
The kudzu bug, Megacopta cribraria (F.) (Heteroptera: Plataspidae), is an invasive insect pest introduced from Asia in 2009 that poses a threat to soybeans (Glycine max [L.] Merr. [Fabales: Fabaceae]) and other legume crops in the United States. Initially discovered in Georgia, M. cribraria rapidly expanded across the southeast until 2014 when a si...
Article
Full-text available
The purpose of this project was to investigate the distribution of the insect family Alydidae in the state of Alabama. Eight species and six genera were confirmed to be present, and all are new state records. The genus Hyalymenus and the species Stenocoris furcifera were previously only recorded in Florida, but are distributed well within Alabama....
Article
Full-text available
Megacopta cribraria (F.) (Hemiptera: Heteroptera: Plataspidae) was first discovered in North America in 9 counties in northeastern Georgia (USA) in October 2009. By the end of 2012, surveys conducted in Georgia and neighboring states confirmed that the insect had spread into 383 additional counties in the southeastern U.S., including the states of...
Article
Full-text available
The trapdoor spider genus Myrmekiaphila currently comprises 11 nominal species. A recent molecular phylogenetic evaluation of the group identified a number of problems with respect to how species and species groups were delineated by Bond and Platnick in their 2007 taxonomic revision of the genus. We report herein the discovery of a new species, My...
Article
Full-text available
Byers Cave is one of Georgia’s largest cave systems and is inhabited by a wide variety of unique invertebrate organisms that have not been documented or studied. From March 2008 through April 2010, baited ramp pit-fall traps and visual surveys were used to sample and document invertebrate species that live in this cave system. After three trapping...
Article
Full-text available
This article may be used for research, teaching, and private study purposes. Any substantial or systematic reproduction, redistribution, reselling, loan, sub-licensing, systematic supply, or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the cont...
Conference Paper
Termites (Isoptera) are a group infamous for their billion-dollar annual economic impact in the United States. However, irrespective of the high relative concentration of ecologists in this country, the enormous functional significance of termites within soil and saproxylic communities has been essentially ignored. A major contributing factor is th...
Article
Full-text available
Although the bacterium Xylella fastidiosa (Xf) has been confirmed to cause economic losses to numerous fruit crop species in the southeastern U.S. since 1933, no science-based information is available on the occurrence of infection in economic fruit crops grown in Alabama, as well as the presence of effective Xf vectors in the state. An investigati...
Article
Full-text available
The adult females of two new species of the margarodid genus Matsucoccus, M. apachecae and M. leiophyllae, are described and illustrated. M. apachecae was collected on Pinus engelmanii and P. ponderosa in Arizona. M. leiophyllae was collected on P. leiophylla in Arizona and Pinus sp. in the Federal District of Mexico. With the addition of these two...
Article
The 3 immature instars of the female pyriform scale insect, Protopulvinaria pyriformis (Cockerell), are described and illustrated. A key for the separation of all developmental stages is provided. /// Se describen y se presentan dibujos de los tres instares inmaduras de la hembra de la cochinilla piriforme, Protopulvinaria pyriformis (Cockerell). S...
Article
Whitefly infested gardenias, 18-20 inches tall, growing in 1 gal plastic pots at the Auburn University Ornamental Horticultural Field Station, Mobile, AL were selected for treatment. Foliar applications of 5 candidate insecticides were applied to run-off Jul 14 and 21 using a hand-pumped, compressed air sprayer. The adjuvant Nu-Film 17 was added to...
Article
Fourteen 12-24 inch tall container-grown Ixoracoccinea, heavily infested with green scale, were selected for treatment. Test plants were growing in 2 gal pots. All stages of green scale were present. A single application of the test materials was made out-of-doors on Aug 4. Treatments were replicated 3 times and arranged in a randomized block desig...
Article
A lectotype is designated for Pseudophilippia quaintancii Cockerell (Homoptera: Coccidae). The 3 immature instars of the female and 5 instars of the male are described and illustrated. A key for separation of all developmental stages of the species is included together with a discussion of the generic status of Pseudophilippia.
Article
Thirty-six 1 ft tall, container grown dwarf burford hollies heavily infested with tea scale were selected for treatment. Test plants were growing in 1 gal plastic pots. Test materials were applied Jun 18'79. Chevron spray-sticker was added to all treat-ments at the rate of 2.4 ml/gal of spray mixture. The foliage of all plants was sprayed to runoff...
Article
Twenty-seven 12-24 inch tall, container-grown Ixoracoccinea, heavily infested with hemispherical scale were selected for treatment. Test plants were growing in 2 gal pots. All stages of hemispherical scale were present. A single application of the test materials was made out-of-doors on June 17. The foliage of all plants was sprayed to run-off usin...
Article
Thesis (Ph. D.)--Mississippi State University. Department of Educational Administration, Supervision, and Adult Education. Includes bibliographical references (leaves [72]-76).
Article
Computational algorithms are given for the design of optimal, finite-length, convolutional filters with finite-length input sequences. Design techniques are developed for minimum-weighted-mean-square-error filters (MWMSE), for minimum-weighted-absolute-error filters (MWAE), and for filters which minimize the maximum output error (minimax). It is sh...
Article
The Q (quality factor) of the widely used two-branch resonant circuit is derived and comparisons are made with the term Qo = ¿oL/R that is often used as the Q of the circuit.

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