Entomology Commons^™

Neoxantholinus Cristatus (Coleoptera: Staphylinidae) Is Reported From The Cayman Islands, J. H. Frank

Insecta Mundi

One male specimen of Neoxantholinus cristatus Smetana (Coleoptera: Staphylinidae), collected in 1993, is reported from Grand Cayman. The presence of that species brings to 63 the number of species of Staphylinidae reported from the Cayman Islands.

A Review Of The New World Krisnini (Hemiptera: Cicadellidae: Iassinae) Including Three Genera And Six New Species, Paul H. Freytag

Insecta Mundi

The tribe Krisnini (Hemiptera: Cicadellidae) is presently known in the New World from three species from Puerto Rico and one species from Dominican Amber, all described in the Old World genus Krisna Baker. The three species from Puerto Rico are being placed in Lipokrisna, new genus, with Krisna insularis Oman as the type species, becoming Lipokrisna insularis (Oman), new combination. The other species in this genus are L. montana (Caldwell) and L. aesta (DeLong) both new combinations. The one species from Dominican amber is placed in the Genus Archiokrisna, new genus, with Krisna …

The Genus Gromphas Brullé, 1837 In Peru (Coleoptera: Scarabaeidae: Scarabaeinae: Phanaeini), Luis Figueroa, W. D. Edmonds, Felipe Meza-Velez

Insecta Mundi

The genus Gromphas Brullé (Coleoptera: Scarabaeidae) comprises four species, of which G. aeruginosa (Perty) and G. amazonica Bates are known to occur in Peru. This paper presents a revised description of Gromphas as well as illustrated diagnoses and distributional and ecological data on the Peruvian species.

Contribution Towards The Knowledge Of Psalidognathus Gray, 1831 (Coleoptera, Cerambycidae, Prioninae), Antonio Santos-Silva, Ziro Komiya

Insecta Mundi

The species of the “modestus” group of the genus Psalidognathus Gray (Cerambycidae: Prioninae) (currently with four species and three subspecies), which are recognized mainly by the antennomeres without apical spines, are studied. Psalidognathus thomsoni Lameere, 1885 is revalidated as a species distinct from P. modestus Fries, 1833. Psalidognathus erythrocerus reichei Quentin and Villiers, 1983 and P. erythrocerus pubescens Quentin and Villiers, 1983 are considered as different species from P. erythrocerus Reiche, 1840. Psalidognathus colombianus Demelt, 1989 and Psalidognathus modestus chocoensis Salazar, 2005 are synonymized with P. modestus, syn. nov. Psalidognathus rufescens, although belonging to “friendii” …

Revision Of African Parandrinae (Coleoptera, Cerambycidae), Thierry Bouyer, Alain Drumont, Antonio Santos-Silva

Insecta Mundi

A comprehensive revision of the Subfamily Parandrinae (Coleoptera, Cerambycidae) from the Afrotropical Region is presented. Two new genera are described: Adlbauerandra and Meridiandra. The known species from the Afrotropical Region are excluded from Parandra Latreille, 1802, which resulted in the following new combinations: Acutandra beninensis (Murray, 1862), A. comoriana (Fairmaire, 1895), A. gabonica (Thomson, 1858), Adlbauerandra morettoi (Adlbauer, 2004) and Meridiandra capicola (Thomson, 1861). Eighteen new species are described: Acutandra amieti, A. barclayi, A. camiadei, A. dasilvai, A. delahayei, A. gaetani, A. garnieri, A. grobbelaarae, A. hugoi, A. jolyi …

First Recorded Introduction Of The Milliped Order Stemmiulida (Eugnatha: Nematophora): Potential Establishment In Florida, Usa, And New Records From Mexico; Northward Range Extension Into Southern Tamaulipas, Rowland M. Shelley, G. B. Edwards, Arthur E. Bogan

Insecta Mundi

Based on two “uni-ocellate” females, the world’s first introductions of the milliped order Stemmiulida are recorded from Florida, United States (US). One individual was collected in 1976 in Gainesville, Alachua County (Co.)., in northcentral peninsular Florida, and the other was taken in 1991 some 408 km (255 mi) to the south-southeast in Pompano Beach, Broward Co. The absence of further individuals and additional samples suggests that the introductions did not result in viable populations, and stemmiulidans are not presently established in the state; the Gainesville site was reinvestigated in 2012 without finding additional specimens. New records from Mexico include the …

A New Species Of Culcua Walker (Diptera: Stratiomyidae) From Vietnam, Norman E. Woodley

Insecta Mundi

A new species of Culcua Walker (Diptera: Stratiomyidae), C. lingafelteri Woodley, new species, is described from northern Vietnam. It is diagnosed relative to other species using the recent revision of the genus by Rozkošný and Kozánek (2007). This is the first species of Culcua reported from Vietnam

An Annotated List Of Symmachia Hübner, [1819] (Lepidoptera: Riodinidae: Symmachiini) From Parque Nacional Da Serra Do Divisor, Acre, Brazil, With The Description Of A New Species, Diego Rodrigo Dolibaina, Luis Anderson Ribeiro Leite, Fernando Maia Silva Dias, Olaf Hermann Hendrik Mielke, Mirna Martins Casagrande

Insecta Mundi

We provide an illustrated list of species belonging to the genus Symmachia Hübner, [1819] (Lepidoptera: Riodinidae: Symmachiini) collected during an expedition conducted between September 10-21, 2011 in the northern part of the Parque Nacional da Serra do Divisor, Acre, Brazil, a remote region of Amazon rainforest. A total of 46 individuals were collected belonging to 15 species. For all recorded species, drawings of male genitalia and behavioral information are provided to support future studies on the taxonomy of the group. A new species, Symmachia divisora Dolibaina and Leite, sp. nov., is described, and a revised status for Symmachia hetaerina hesione …

Novel Role Of A Cypovirus In Polydnavirus-Parasitoid-Host Relationship, Philip Houtz

Kaleidoscope

No abstract provided.

Aggregation Behavior Of The Southern Chinch Bug (Hemiptera: Blissidae), Karla M. Addesso, Heather J. Mcauslane, Ron Cherry

Agricultural and Environmental Sciences Faculty Research

The southern chinch bug, Blissus insularis Barber, forms dense, multigenerational aggregations in St. Augustinegrass lawns leading to grass death from sap feeding. We conducted laboratory bioassays to better understand the signals responsible for the formation and maintenance of southern chinch bug aggregations. In small arena assays, chinch bugs demonstrated a stronger aggregation response over time and aggregated more often on or beneath St. Augustinegrass leaf blades than on or under artificial leaf-like shelters constructed from white or green paper. In Y-tube olfactometer assays, bugs of different age and sex were attracted to volatiles from mixed-sex chinch bug aggregations and showed …

Nebline, August 2012

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: 9 Reasons to Shop at Farmers Markets

Farm Views

Urban Agriculture

Food & Fitness

Home & Family Living

Horticulture

Environmental Focus

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Ecology And Phylogeny Of The Biting-Midge Genus Culicoides (Diptera: Ceratopogonidae), Dustin Swanson

All Dissertations

Flies of the genus Culicoides are small, biting midges in the family Ceratopogonidae. These flies are of medical, veterinary, and economic importance because their blood-feeding behavior can cause stress to hosts and transmit disease agents. Despite the importance of these flies, little is known about their biology, especially the ecology of the immature stages and the phylogenetic relationships among taxa. The objectives of my study were to address these two areas of Culicoides biology.
Larval Culicoides were collected from aquatic habitats in four ecoregions of South Carolina, USA. Eleven ecological variables were recorded for each sample. Larvae were identified by …

Trapping And Control Of The Small Hive Beetle, Aethina Tumida, An Invasive Parasite Of Honey Bees, Apis Mellifera, Shannon Peterson

All Theses

The small hive beetle, Aethina tumida Murray (Coleoptera: Nitidulidae), is one of the most recent honey bee pests of economic importance, especially in the southeastern United States. Various in-hive traps have been developed to attempt to control the populations of this invasive pest within honey bee colonies. The first year of my research focused on comparing the effectiveness of three commercially available traps for removing small hive beetles. Thirty-two colonies were established with 0.9-kg package bees with a queen in four apiaries. Eight colonies were placed in each apiary, each colony randomly receiving one of four treatments: the three-chambered Hood …

Fluid Uptake By The Lepidopteran Proboscis In Relation To Structure, Karena Kwauk

All Theses

Three species of butterflies--eastern tiger swallowtail (Papilio glaucus L.), monarch (Danaus plexippus L.), and painted lady (Vanessa cardui L.)--were used to investigate the effect that exposing multiple regions of the proboscis to fluid has on feeding rate. Although the lepidopteran proboscis historically has been considered a sealed tube with a specialized region near the tip for fluid uptake, droplets of 1% sucrose solution were shown to enter multiple locations along the proboscis. Feeding experiments were conducted comparing fluid uptake rates of butterflies with their proboscises either fully or partially submerged in 1% or 15% sucrose solutions. Only one significant relationship …

Efficacy Of Precision-Applied In-Furrow Insecticide/Nematicide And Seed Treatments On Populations Of Thrips And Nematodes In Cotton, Ginger Devinney

All Theses

Thrips and nematodes can be serious early-season pests of cotton grown on the highly variable soil types common in the southeastern United States. I examined the effects of precision-applied aldicarb (Temik¨ 15G) and seed treatments (Aeris¨ and Avicta Complete Pak¨) on population dynamics of thrips and nematodes in management zones defined by soil texture as measured by soil electrical conductivity (EC). Research plots were established in cotton fields with variable soil types at the Clemson University Edisto Research and Education Center near Blackville, SC, during May of 2010 and 2011. Research plots were arranged in a three-way factorial design, with …

Factors Affecting The Distribution And Survival Of Endangered American Burying Beetles, Nicrophorus Americanus Olivier, Jessica Jurzenski

Department of Entomology: Dissertations, Theses, and Student Research

The disappearance of the federally endangered American burying beetle (Nicrophorus americanus Olivier) over most of its range is poorly understood, which is why the identification and evaluation of conservation measures is important. The presence and distribution of all carrion beetles in Nebraska was first reported to help understand where American burying beetles (ABBs) occur to aid in creating a habitat suitability model for the Sandhills ecoregion and to locate suitable experiment areas. There are 18 Nebraska counties with records of ABB presence in the last 15 years. The final habitat suitability model performed well with an AUC value above …

Effect Of Distribution And Concentration Of Topically Applied Neonicotinoid Insecticides In Buffalograss, Buchloe Dactyloides, Leaf Tissues On The Differential Mortality Of Blissus Occiduus Under Field Conditions, Mitchell D. Stamm, Tiffany M. Heng-Moss, Frederick P. Baxendale, Blair D. Siegfried, Roch E. Gaussoin, Daniel D. Snow, David A. Cassada

Department of Entomology: Faculty Publications

Background: Neonicotinoid insecticides are generally efficacious against many turfgrass pests, including several important phloem-feeding insects. However, inconsistencies in control of western chinch bugs, Blissus occiduus, have been documented in field efficacy studies. This research investigated the efficacy of three neonicotinoid insecticides (clothianidin, imidacloprid and thiamethoxam) against B. occiduus in buffalograss under field conditions and detected statistically significant differences in B. occiduus numbers among treatments. A subsequent study documented the relative quantity and degradation rate of these insecticides in buffalograss systemic leaf tissues, using HPLC.

Results: Neonicotinoid insecticides initially provided significant reductions in B. occiduus numbers, but mortality diminished over the …

High-Throughput Transcriptome Sequencing For Snp And Gene Discovery In A Moth, Nicholas J. Miller, Jing Sun, Thomas W. Sappington

Department of Entomology: Faculty Publications

The western bean cutworm, Striacosta albicosta (Smith) (Leptidoptera: Noctuidae) is a pest of corn (Zea mays L.) and dry beans that underwent a dramatic range expansion in North America during the first decade of the 21st century. Research into the population genetics of this species has been hindered by a lack of genetic markers. The transcriptome of adult male S. albicosta was partially sequenced using Illumina sequencing-by-synthesis. Assembly of the sequence reads yielded 16,847 transcript sequences, of which 6,631 could be assigned a putative function. A search for single nucleotide polymorphisms (SNPs) identified 2,487 candidate SNPs distributed among 1,265 …

Seasonal Population Dynamics Of The Potato Psyllid (Hemiptera: Triozidae) And Its Associated Pathogen “Candidatus Liberibacter Solanacearum” In Potatoes In The Southern Great Plains Of North America, John A. Goolsby, John J. Adamczyk Jr., J. M. Crosslin, Noel N. Troxclair, J. R. Ancisco, Gerhard G. Bester, J. D. Bradshaw, Edsel D. Bynum Jr., L. A. Carpio, Don C. Henne, Ankush Joshi, Joseph E. Munyaneza, Pat Porter, Phillip E. Sloderbeck, J. R. Supak, C. M. Rush, F. J. Willett, B. J. Zechmann, B. A. Zens

Department of Entomology: Faculty Publications

The potato psyllid, Bactericera cockerelli (Sulc) (Hemiptera: Triozidae), and its associated pathogen “Candidatus Liberibacter solanacearum” (Ca. L. solanacearum), the putative causal agent of zebra chip (ZC) disease in potatoes (Solanum tuberosum L.), were sampled in commercial potato fields and untreated control plots for 3 yr in multiple locations in Texas, Kansas, Nebraska, and Colorado. Populations of the potato psyllid varied across years and across potato growing regions. However, the percentage of potato psyllids infected with Ca. L. solanacearum although variable across years, was consistently highest in the Lower Rio Grande Valley of Texas (LRGV), the reported overwintering …

Mass Spectral Determination Of Phenylacetonitrile (Pan) Levels In Body Tissues Of Adult Desert Locust, Schistocerca Gregaria, Peris W. Amwayi, Daniel K. Masiga, Prem Govender, Peter E.A. Teal, Baldwyn Torto

All Peer-Reviewed Publications

Wings and legs of the gregarious desert locust, Schistocerca gregaria have been shown to be release sites of phenylacetonitrile (PAN), the major adult male-produced pheromone. However, there is limited information on the distribution of PAN within the locust. Here we show, using gas chromatography-mass spectrometry (GC-MS), that PAN occurs in nearly all body parts of both adult males and females of the locust in varying amounts. PAN was 20-fold more concentrated in males than in females. In females, PAN was concentrated more in the tarsal segments. The greatest amounts of PAN were in 2- and 3-week old female and male …