Richard Brown

Richard Brown
Mississippi State University | MSU · Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology

About

79
Publications
8,885
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
621
Citations

Publications

Publications (79)
Article
Full-text available
Introductions of exotic organisms have become commonplace worldwide, in large part due to extensive global trade. When conditions are favorable, introduced species can become established in new regions, and in some cases become invasive. In the U.S., the Southeastern region has been particularly susceptible to successful establishment of exotic ant...
Article
One hundred and ninety-three species of ants, plus the hybrid fire ant, Solenopsis invicta X richteri, are reported for Mississippi. Thirty-two species are considered to be exotic to Mississippi. County records are given for each species.
Article
Full-text available
This work presents a multiple‐gene phylogenetic analysis of 70 species representing 24 genera of Cochylina and eight species representing eight genera of Euliina, and a maximum‐likelihood analysis based on 293 barcodes representing over 220 species of Cochylina. The results confirm the hypothesis that Cochylina is a monophyletic group embedded with...
Article
Full-text available
For approximately 15 years, Raffaelea lauricola and its vector, Xyleborus glabratus (redbay ambrosia beetle), have been causing extensive mortality of North American plants in the Lauraceae. All species of Lauraceae native to the USA that have been tested thus far are susceptible to the pathogen. Ecological impacts will likely continue to radiate o...
Article
Full-text available
Epinotia hopkinsana cupressi Heinrich is elevated to species status, and E. hopkinsana (Kearfott) and E. cupressi are differentiated based on morphological and host plant differences. Two new species of Epinotia Hübner, [1825] are described and illustrated: E. ephemerana, new species, from Plumas and Riverside counties, California, U.S.A.; and E. w...
Article
Full-text available
The Lepidoptera of North America Network, or LepNet, is a digitization effort recently launched to mobilize biodiversity data from 3 million specimens of butterflies and moths in United States natural history collections (http://www.lep-net.org/). LepNet was initially conceived as a North American effort but the project seeks collaborations with mu...
Article
In 2004, we determined baseline data on fungal-community assemblages from Solenopsis invicta (Red Imported Fire Ant) mounds in 3 counties (Hinds, Leake, and Madison) within the Natchez Trace Parkway, MS. We assayed mound soil, plant debris within the mounds, and ants obtained from mounds on 3 sampling dates (March, July, and November). We processed...
Conference Paper
Full-text available
The redbay ambrosia beetle (Xyleborus glabratus) is an invasive wood-boring insect originating from southeast Asia, and carries the fungus responsible for laurel wilt disease (Raffaelea lauricola). Laurel wilt is causing widespread mortality in redbay (Persea borbonia), swampbay (Persea palustris), and sassafras (Sassafras albidum), and has potenti...
Article
Full-text available
Background: Despite the great importance of lepidopteran wing patterns in various biological disciplines, homologies between wing pattern elements in different moth and butterfly lineages are still not understood. Among other reasons, this may be due to an incomplete understanding of the relationship between color pattern and wing venation; many in...
Article
A study was conducted to determine microbial community structure and baseline information of cultural bacteria taxa within Solenopsis invicta (Red Imported Fire Ant) mounds from 3 locations along the roadside of Natchez Trace Parkway in Mississippi. At each location, samples consisting of mound soils, plant debris of primarily grass stem and leaves...
Article
The descriptions of Rhopobota tungurahuana Razowski & Pelz and Ancylis ecuadorica Razowski & Wojtusiak were based on female specimens collected in Ecuador. Series of both sexes of these species were collected in Venezuela, and these represent new distribution records. Male genitalia are described, and figures of imagos and genitalia of both sexes a...
Article
Full-text available
Wing patterns are key taxonomic characters that have long been used in descriptions of Lepidoptera; however, wing pattern homologies are not understood among different moth lineages. Here, we examine the relationship between wing venation and wing pattern in the genus Micropterix, among the most basal extant Lepidoptera, in order to evaluate the tw...
Conference Paper
Morphology and distribution of sensilla on the worker antenna of the Argentine ant, Linepithema humile were examined with light microscopy and scanning electron microscopy. Various types of sensilla were found on the scape and 11 flagellomeres that make up the funiculus, which is not clavate. Sensilla basiconica and sensilla trichodea curvata were...
Conference Paper
Since 2009 the Mississippi Entomological Museum (MEM) has served as a Screening and Identification Center for the USDA-APHIS Eastern Region. Currently the Screening Center supports Cooperative Agricultural Pest Surveys in Mississippi, Alabama, Kentucky and Tennessee for exotic wood borers/bark beetles, Sirex woodwasps, and a wide range of Lepidopte...
Conference Paper
Multiple models have been proposed to explain the relationship between wing venation and wing patterning in forewings of Microlepidoptera. Lemche's model (1935, 1937) relates fascia (transverse stripes) to the points where veins fork within the wing, whereas Brown and Powell's model (1991; modified by Baixeras in 2002) relates fascia to the points...
Article
Three new species of Olethreutinae (Lepidoptera: Tortricidae) from the United States are described and illustrated. Eucosma paregoria Brown, n. sp., is associated with prairies and glades, primarily in midwestern U.S. Cydia marita Brown, n. sp., is common in southeastern U.S., ranging from Texas to Florida and north along the eastern seaboard to Vi...
Conference Paper
Cactoblastis cactorum (Berg) (Lepidoptera: Pyralidae), commonly referred as the argentine cactus moth, is a serious pest of native and non-native Opuntia cacti. Since its discovery in South Florida, the invasive moth has spread along the Atlantic and the Gulf coasts. In order to seek a long term control strategy, non-native natural enemies from Arg...
Article
Full-text available
Pubitelphusa is proposed as a new genus for Gelechia latifasciella Chambers in North America and Concubina trigonalis Park and Ponomarenko in the Palearctic Region. Pubitelphusa latifasciella, most recently assigned to Telphusa, is redescribed, and male and female genitalia are illustrated. A neotype for G. latifasciella is designated. Concubina tr...
Conference Paper
Surveys of moths in 10 prairie and two forest sites in the Black Belt of Mississippi that began in 1991 have resulted in the collection of 144 species of Gelechioidea representing seven families. This survey resulted in discovery of a new species of Elachistidae, Elachista ciligera, and a new genus and new species of Autostichidae, Spinitibia hodge...
Article
— Scanning electron microscopy was used to study the morphology of the chorionic surface of two pyralids that feed on Opuntia cactus. The chorionic surface of Cactoblastis cactorum has a reticulate pattern due to the ridges on the surface and aeropyles. The chorionic surface has a granular appearance at low magnifications and rugose at high ones. T...
Article
Species of the North American genus Sinoe Chambers, 1873, are reviewed. A neotype for Anacampsis robiniella Fitch, 1859, the type species of Sinoe, is designated, and the species is redescribed. A lectotype for S. fuscopalidella Chambers, 1873 and a neotype for Gelechia robiniaefoliella Chambers, 1880, both junior synonyms of S. robiniella, are als...
Article
Full-text available
The Mississippi Entomological Museum conducted a survey of ants at the Noxubee National Wildlife Refuge in Oktibbeha, Noxubee, and Winston Counties, Mississippi. Collections were made from September 21, 2007, through October 31, 2008, at 57 sites in six primary habitats: pine forests, mixed pine/hardwood forests, bottomland hardwood forests, upland...
Article
A survey of bees (Apoidea) in the Black Belt Prairie of northern Mississippi was conducted from 1991 to 2001. Collecting methods included netting specimens from floral hosts and use of malaise traps. The survey resulted in collection of 6138 specimens, of which 3627 were identified to 118 species. Of the 2511 unidentified specimens, the vast majori...
Article
A new species of Euclemensia (Cosmopterigidae) is described from Louisiana. The imago and genitalia of the male and female are illustrated, and diagnoses are provided to differentiate the new species from the four other described species of the genus.
Article
The three species of Symmoclnae (Autostichidae) known to occur in North America are reviewed, and imagos and male and female genitalia are illustrated. A new genus and new species of Symmoclnae are described and novel morphological characters are illustrated.
Article
Full-text available
Extensive areas of prairie were once found in the southeastern United States; however, in the last 200 years much of this habitat type has been destroyed. The largest of these prairie regions, the Black Belt Prairie, extends through portions of Alabama, Mississippi, and Tennessee. The ant fauna of these endangered grasslands has not been well docum...
Article
Full-text available
Distributions of 20 species of Pyramica (Formicidae: Myrmicinae: Dacetini) in Mississippi are reported. This list includes six new state records including Pyramica bimarginata (Wesson & Wesson), P. metazytes Bolton, P. ohioensis (Kennedy & Schramm), P. reflexa (Wesson & Wesson), P. talpa (Weber), and one introduced species, Pyramica hexamera (Brown...
Article
Full-text available
The adventive cactus moth Cactoblastis cactorum (Berg) (Lepidoptera: Pyralidae), a widely used biological control agent for Opuntia Mill. cacti, was detected in Florida in 1989. Since then, it has spread along the Atlantic and Gulf Coasts of southeastern United States, threatening native Opuntia populations. We examined the phylogeography of 20 C....
Article
Abstract Confocal laser scanning microscopy has become a valuable tool for a wide range of investigations in the biological sciences, but its use in insect systematics has been neglected. Confocal microscopy depends on the degree of fluorescence of the examined specimens, which is aided either by fluorescent dyes or autofluorescence of the specimen...
Article
Full-text available
3 To whom correspondence should be sent Abstract A checklist of Gelechiidae in America north of Mexico is provided based on additions of new taxa and nomenclatorial changes in publications since 1978. This checklist includes the addition of 253 new species and 8 new genera, 30 species and 5 genera previously unrecorded from North America, 4 species...
Article
Abstract Phylogenetic relationships of 25 genera of Holarctic Teleiodini (Gelechiidae) are postulated based on morphology and molecular characters, including CO-I, CO-II, and 28S genes. The phylogenetic analysis of the morphology matrix yielded four equal most-parsimonious trees (length 330 steps, CI = 0.36, RI = 0.55) and a strict consensus tree (...
Article
Full-text available
The 25 genera of Teleiodini (Lepidoptera: Gelechiidae) occurring in the Holarctic Region are revised. A new genus and new species, Arcutelphusa talladega, are described from Alabama and Mississippi, United States. Evippe Chambers (1873a) is synonymized with Agnippe Chambers (1872a), Hapalosaris Meyrick (1917) is synonymized with Coleotechnites Cham...
Article
Full-text available
The 25 genera of Teleiodini (Lepidoptera: Gelechiidae) occurring in the Holarctic Region are revised. A new genus and new species, Arcutelphusa talladega, are described from Alabama and Mississippi, United States. Evippe Chambers (1873a) is synonymized with Agnippe Chambers (1872a), Hapalosaris Meyrick (1917) is synonymized with Coleotechnites Cham...
Article
Full-text available
Community assembly and the factors that influence it have long been a topic of interest to ecologists, but theory has yet to produce unequivocal evidence that communities assemble in predictable ways. The goal of this study was to document the relationship between ant communities and environmental variation between four habitat types. To accomplish...
Data
FIGURES 34 – 39. Male genitalia, cucullus (c), phallus (p), ventral part of gnathos (vg), saccus (s), and uncus (u). 34, Parachronistis albiceps (modified from Huemer and Karsholt, 1999). 35, Stenolechia bathrodyas (modified from Huemer and Karsholt, 1999). 36, Istrianis myricariella. 37, Schistophila laurocistella. 38, Coleotechnites florae. 39, P...
Data
FIGURE 44 – 46. Female genitalia. 44, Glauce sp. 1. 45, Arogalea cristifasciella. 46, Telphusa sedulitella.
Data
FIGURES 1 – 6. Characters of the head and thorax. 1, Lateral ocellus (arrow) of Exoteleia anomala. 2, Forewing of Telphusa sedulitella with scale tufts. 3, Male hindwing of Coleotechnites florae with hair pencil on anal area. 4 – 5, Clypeus. 4, Istrianis myricariella. 5, Neotelphusa querciella. 6, Posterior area of sitophore with four campaniform s...
Data
FIGURES 49 – 50. Arcutelphusa talladega, sp. nov. 77, Male genitalia. a, tegumen (t). b, phallus (p) and valva, costal part (vc), saccular part (vs). c, vinculum (vi). 78, female genitalia, corpus bursae (cb), ductus bursae (db), ostium bursae (ob), and signum (s). Scale bar: 0.5 mm.
Data
FIGURES 19 – 24. Characters of the labial palpi and abdomen. 19 – 20, Third segment of labial palpus. 19, Recurvaria leucatella. 20, Istrianis myricariella. 21 - 22, Male sternum VIII. Telphusa perspicua. 21, Arcutelphusa talladega sp. nov., 22. Coleotechnites sp. 1, 23 – 24. Male tergum VIII. 23, Teleiopsis diffinis. ahp = anterolateral hair penci...
Data
FIGURES 30 – 33. Male genitalia, internal duct (id), costal part of valva (vc), and saccular part of valva (vs). 30, Exoteleia dodecella. a, tegumen. b, vinculum and valva. c, phallus. 31, Pseudotelphusa basifasciella. a, tegumen. b, vinculum, valva, and phallus. 32, Xenolechia ontariensis. 33, Argyrolacia bifida.
Data
FIGURES 40 – 43. Female genitalia. 40, Agnippe crinella. 41, Pseudotelphusa betulella. 42, Teleiopsis diffinis. 43, Stenolechia gemmella.
Data
FIGURES 51 – 58. Imagos. 51. Agnippe crinella. 52, Agnippe prunifoliella. 53, Glauce pectenalaeella. 54, Telphusa longifasciella. 55, Arogalea cristifasciella. 56, Sinoe robiniella. 57, Recurvaria nanella. 58, Exoteleia dodecella.
Data
FIGURES 7 – 18. Wing venation. 7 – 14, Forewing. 7, Sinoe robiniella. ps = pterostigma. 8, Carpatolechia sp. 1. 9, Arogalea cristifasciella. 10, Agnippe sp. 1. 11, Stenolechia gemmella. 12, Parastenolechia nigrinotella. 13, Parachronistis albiceps. 14, Arcutelphusa talladega, sp. nov., 15 – 18, Hindwing. 15, Agnippe sp. 1. 16, Sinoe robiniella. 17,...
Data
FIGURES 25 – 29. Male genitalia, basal articulation (ba), dorsal gnathos (dg), ventral gnathos (vg), and uncus (u). 25, Agnippe sp. 1. 26, Glauce sp. 1. 27, Arogalea cristifasciella. 28, Telphusa sedulitella. a, tegumen. b, vinculum and phallus. 29, Sinoe robiniella. a, tegumen. b, phallus. c, vinculum.
Article
Full-text available
Fifteen species of Camponotus (Formicidae) in five subgenera are reported from Mississippi based on a survey by the Mississippi Entomological Museum from 2001–2007 and previous records. This report includes a taxonomic list and brief descriptions of species, biological information, economic importance, control measures, distribution maps, and ident...
Article
Full-text available
A case study reporting a high diversity of native ants co-existing with imported fire ants is presented. Thirty-six species of ants were collected within one meter of the base and on the lower two meters of the trunk of a Quercus pagoda (cherry bark oak) in Tombigbee National Forest, Winston County, MS, on five dates during 2003 and 2004. Twenty-th...
Article
Full-text available
A survey of Formicidae was conducted in the Ackerman Unit of the Tombigbee National Forest, in Winston and Choctaw Counties, Mississippi. Collections were made with pitfall traps from 15 March 1999 to 6 March 2000 and other collecting methods on various dates from the spring of 2002 through the fall of 2003. A total of 27 genera and 71 species repr...
Article
A new method is described for preparing slide mounts of whole bodies of microlepidoptera to facilitate comparative morphological studies. This method conserves traditional characters of wing pattern while revealing wing venation and other morphological structures of the denuded body. Examples of new characters revealed on slide mounts of whole bodi...
Article
The male genitalia of Dichomeris illusio Hodges and D. mimesis Hodges are described and illustrated. New distribution records for these species are provided.
Article
Full-text available
Two new species of Neodactria B. Landry, N. daemonis B. Landry & A. B. Klots n. sp., from Arkansas and Missouri, and N. oktibbeha B. Landry & R. L. Brown n. sp., from Mississippi are described and illustrated.
Article
Full-text available
Two new species of Eucoenogenes Meyrick (Lepidoptera: Tortricidae: Eucosmini), E. bicucullus Pinkaew and E. vaneeae Pinkaew, are described and illustrated from montane evergreen forest in Thong Pha Phum National Park, Kanchanaburi Province, Thailand. Epinotia munda Diakonoff, described from a female collected in Sumatra, is transferred to Eucoenoge...
Article
Full-text available
Cryptaspasma bipenicilla, new species, is described and illustrated from Central America, the Caribbean, and southeastern United States. The earliest record of this species in the U.S. is a specimen collected in Pensacola, Florida, in 1962. We consider the species to now be established in the U.S. based on its widespread occurrence (on the Atlantic...
Chapter
Many individuals and groups have become involved in preserving and restoring native prairies and other habitats in recent years. The terms preservation and restoration have been used broadly, and sometimes interchangeably, to cover a variety of conservation activities. In general, preservation involves more restricted management for conservation of...
Article
Phaneta canusana, new species, is described and compared with P. lapidana, P. sublapidana, P. kokana and P. ambodaidaleia. Lectotypes are designated for P. lapidana and P. sublapidana. Imagos of the five species, the male genitalia of P. lapidana and P. sublapidana and the male and female genitalia of P. canusana are illustrated. P. canusana is ass...
Chapter
History, Jonathan Steinberg wrote, should be fun. ‘If history is not fun it is not for you. Find yourself another subject.’ How should the student historian attain this enjoyment? Interest and involvement may be developed and sustained by a variety of approaches, many of which take place outside the school or college: four of these are books, telev...
Chapter
How many times have you been accused of failing to ‘read round the subject’? How often have you been faced with having to read what seems to you a massive volume? How should you approach this task? This chapter is concerned with the nature of secondary sources and the ways in which you can approach them successfully and efficiently.
Chapter
History depends on good communication, so clarity in written work is essential. What is good written work and how can the historian improve his skills?
Chapter
History is generally something that historians ‘do’ rather than theorise about. It is a practical activity. This chapter is concerned with the nature of history and the variety of expertise which historians can draw upon. There is no real need for consensus about what should actually be examined or why. The quotations below indicate the diversity o...
Chapter
Written and printed sources form only part of the enormous range of evidence available to the historian, who must be equally skilled with visual, statistical and oral evidence.
Chapter
And, as G. R. Elton put it, there is ‘the unexpected, the unforeseen, the contingent, the accidental and the unknowable’.
Chapter
‘documents are liars. No man ever yet tried to write down the entire truth of any action in which he was engaged’ If it is ever possible to find out ‘the truth’ about the past — and most historians would agree with T. E. Lawrence’s assertion — then the key to this process lies in the use of evidence. Although ‘sources’ are sometimes regarded as exc...
Chapter
The past is at the same time both changeless and changing. Events that have occurred in the past cannot change. Magna Carta was signed, Julius Caesar was assassinated, the First World War did take place; but historical interpretation of those events and people does change. Historians develop new ways of looking at the past, alternative methods for...
Article
Full-text available
Aethalion reticulatum nymphs and adults were found feeding onPiper umbellatum in Costa Rica. Adult females protected their egg masses by sitting atop the masses and scraping their hind legs along the sides. Two parasitoids,Gonatocerus sp. andPterygogramma sp. were reared from egg masses. Nymphs and adults were regularly tended byCamponotus sericeiv...
Article
Full-text available
Ants in the genus Brachymyrmex (Hymenoptera: Formicidae) are minute, soft-bodied, range in color from pale yellow to dark brownish-black, and have distinct nine-segmented antennae (males have ten-segmented antennae). Most species nest in soil or rotting wood. Thirty-eight species are known worldwide (Bolton 1995), but only eight, of which four appe...

Projects

Project (1)
Project
Laurel wilt could functionally extirpate all plants within the Lauraceae in North America. Removal of these species from forests will invariably cause a trophic cascade among organisms such as herbivorous insects that rely on laurels as host plants. This project seeks to compile literature reports of native insect herbivores on laurel hosts, and quantify possible impacts on them from laurel wilt disease.