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Hexapod Herald - Vol. 10, No. 8, August 25, 1997

Hexapod Herald and Other Entomology Department Newsletters

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Nebline, August 1997

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Lancaster County Fair: July 30-August 3
“One Call--that's all”
4-H gardeners attend garden workshops
Control of ground ivy in the lawn
August blooming perennial flowers
1997 Household Hazardous Waste Collections
Shortest shower award
Antlions: the good, the odd and the ugly
Pesticide container recycling at fair, other sites in August
Bat sightings increase in August
Reuse wire coat hangers
Seedbeds for late summer alfalfa planting
Oats for fall pasture or hay
Evening program to highlight irrigation management and well decommissioning
How to deal with animal heat stress
Make plans now for passing on the family farm
Improve livestock water distribution …

Riparian Refugia In Agroforestry Systems, Mary Ellen Dix, Erol Akkuzu, Ned B. Klopfenstein, Jianwei Zhang, Mee-Sook Kim, John E. Foster

Department of Entomology: Faculty Publications

In the last 200 years, cultivation, grazing, and other activities initiated by humans have destroyed more than 80 percent of the strips of vegetation along North American and European streams and other bodies of water (Decamps and Naiman 1989; Petts et al. 1989). This disappearance of the riparian zones is continuing with little concern for ecological consequences. At the same time, riparian buffer strips are being promoted as a preferred management practice in the United States, especially in the Great Plains, to protect water resources from soil and chemical pollution (Schoeneberger 1994; Schoeneberger et al. 1995; Schultz et al. 1995a; …

Hexapod Herald - Vol. 9, No. 7, July 16, 1997

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Nebline, July 1997

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Home*A*Syst: Helping you assess environmental risks in and around your home
Watch for squash vine borer
Summer patch of turfgrass
Storing extra seeds
Mower wounds can kill trees
Replant iris
Harvesting
Recycle your pesticide containers at the Lancaster County Fair!
Chigger alert! Don’t ruin your recreational outing
Master Beekeeping/Queen Rearing Workshops
The nonstop dropper
Water patrol checklist
Have you ever seen dead flies clinging to the top of vegetation?
UNL to conduct hands-on Diagnostic Clinics in July
Wheel traffic reduces alfalfa yield
Dealing with summer pasture shortages
Planning tips for noxious weed control in CRP contracts
Staying safe on the …

Insect Pests And Arthropod Predators Associated With Tree-Turf Landscapes, Mary Ellen Dix, Frederick P. Baxendale

Department of Entomology: Faculty Publications

Sweep-nets and pitfall traps were used to examine the distribution and dynamics of predominant predators and pests in turfgrass foliage in parks, golf courses and suburban/rural landscapes in 1991 and 1992. Araneae, Formicidae, and Coccinellidae were the most abundant predators in the sweeps, while Araneae, Formicidae, and) Carabidae were the most abundant predators in the pitfall traps. In both years, Araneae comprised over 60% of the total predators in the sweep samples. Formicidae (>70%) and Araneae (13-19%) were the most abundant arthropod predators in the pitfall samples. Cicadellidae, Chrysomelidae, and Orthoptera accounted for over 96% of the prey in …

Hexapod Herald - Vol. 9, No. 6, June 13, 1997

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The Mayfly Newsletter, Peter M. Grant

The Mayfly Newsletter

The Mayfly Newsletter is the official newsletter of the Permanent Committee of the International Conferences on Ephemeroptera.

Nebline, June 1997

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Happy Birthday! Lincoln's Biosolids Land Application Program is five years old
1997 Pesticide Container Recycling Begins June 20 in Bennet!
Brighten your outdoor area with hanging baskets
Raise the mower height
Think about apple maggot control now
Balcony gardens
Watering
Scented geraniums
I found some bugs in my walls, can I bring them in?
Understanding termite baits
Ophidiophobia? fear of snakes
Living green
EQIP sign-up underway
Farmers at risk for permanent hearing loss
Providing water to pastured livestock
Diagnostic clinics set for July at ARDC
Pasture rent
Round bales can withstand elements if stored properly
Pond management
Assessing rural life …

Flea News 54 (June 1997), Robert E. Lewis

Flea News

Miscellanea

Advisory Committee on Immunization Practices (ACIP) update

Nomenclatural tidbits

Siphonaptera literature

Nomenclatural Changes, Reinstatements, New Combinations, And New Synonymies Among American Cerambycids (Coleoptera), Gerard Luc Tavakilian

Insecta Mundi

New synonyms: Protormascabrosa Waterhouse, 1880 and Protorma recurvatum Williams, 1829 = Strongylaspis costifer Thomson, 1877; Callopisma ruficollis Bates, 1870 =Eriphus croceicollis White, 1855; Odontocera cinctiventris Bates, 1870 = Odontocera simplex White, 1855; Tomopterus aurantiacosignatus Zajciw, 1969 =Tomopterus similis Fisher, 1930; Cerambyx spectabilis Voet, 1778 = Cerambyx velutinus Fabricius, 1775; Chion ochraceus Bates, 1885 = Lamia spinifera Fabricius, 1792; Lissonotus shepherdi Pascoe, 1859 =Callidium equestre Fabricius, 1787; Cerambyx pulverulentus Olivier, 1790 = Cerambyx farinosus Linne, 1758; Lamia crypta Say, 1832 = Saperda annulata Fabricius, 1801; Ptericoptus forsteri Tippmann, 1960 = Bisaltes buquetti Thomson, 1868; Ataxia flaviceps Breuning, 1942 …

Revision Of The Anastrepha Benjamini Species Group And The A. Pallidipennis Complex (Diptera: Tephritidae), Allen L. Norrbom

Insecta Mundi

The shape of the facial carina in Anastrepha is discussed. Although taxonomically useful, the protrudent form probably occurs by convergence in different species groups. Two species groups in which the carina is usually produced are revised. The benjamini species group includes: benjamini Lima (from southeastern Brazil), gigantea Stone (from Panama), magna, n. sp. (from Colombia and Venezuela), and superflua Stone (from Panama). Host data for this group are limited to only one record of benjamini from a species of Pouteria (Sapotaceae). The pallidipennis complex, which is included in the pseudoparallela species group, is recognized to include: amnis Stone (from …

A Revision Of The Sclerocoelus Galapagensis Group (Diptera: Sphaeroceridae: Limosininae), S. A. Marshall

Insecta Mundi

The Sclerocoelus galapagensis group is defined and revised, including the description of S. galapagensis new species from the Galapagos Islands; S. caribensis new species from the Caribbean and adjacent areas; S. brasilensis new species from Brazil, Ecuador, Colombia, ancl Panama; S. hemorrhoidalis new species from Ecuador and Venezuela; and S. andensis new species from Argentina, Bolivia, and Venezuela. The south Atlantic species Sclerocoelus subbrevipennis (Frey), new combination, is redescribed as a member of the S. galapagensis group, and is considered the sister species to the rest of the species group. A key to species, character matrix, and cladogram are provided.

A New U.S. Record For A Secondary Fruit Infester, Neosilba Batesi (Curran) (Diptera: Lonchaeidae), Kurt Ahlmark, Gary J. Steck

Insecta Mundi

A lonchaeid fly, Neosilba batesi, first described by Curran in 1932 from Guatemala, is here reported in Florida as of September 1994, a new U.S. record. Five larvae found infesting avocado fruit were reared to adults. The authors first identified the adults and our initial determination was confirmed by Dr. Al Norrbom of the Systematic Entomology Laboratory, USDA, Washington, D.C. A number of other specimens were subsequently collected and are recorded here as well. The species is probably a secondary invader of fruit, following initial attack by Anastrepha fruit flies, as observed in several other lonchaeid species (Curran, 1932; …

The Nearctic Species Of Oetophorus (Hymenoptera, Ichneumonidae, Ctenopelmatinae), John R. Barron

Insecta Mundi

The Nearctic members of the genus Oetophorus Foerster are revised. There are four species, O. pleuralis (Cresson , and O. obscurus, O. clavatus, and O. maculatus, new species. The name Oetophorus stretchii (Cresson) is placed in synonmy with the name Oetophorus pleuralis (Cresson). Relationships of the genus with others in the tribe Perilissini nnd relationships of the species included in the genus are briefly discussed.

Book Review: Biologie Des Coleopteres Chrysomelides By Pierre Jolivetj, R. H. Arnett Jr.

Insecta Mundi

The main biological aspects of this economically important group of beetles, the Chrysomelidae, are summarized in this new work by the internationally known author, Dr. Pierre Jolivet. Around 37,000 species are now described and more remain to be named. The size and diversity of the family are less than those of the weevils (Curculionidae), but probably there will be a total of 40 to 50 thousand species once the canopy fauna is better known. For instance, we still know nothing about the biology and the host plants of the Madagascaran leaf beetles and surely many more species from that region …

Scirtothrips Perseae (Thysanoptera: Thripidae), A New Species Infesting Avocado In Southern California, Sueo Nakahara

Insecta Mundi

Scirtothrips perseae new species is described. It is a pest of avocado in southern California.

An Illustrated Descriptive Catalogue Of The Genera Anidrytus Gerstaecker And Epopterus Chevrolat, With Descriptions Of New Species (Coleoptera: Endomychidae), H. F. Strohecker

Insecta Mundi

The endomychid beetle genera Anidrytus Gerstaecker and Epopterus Chevrolat have been confused for many years. This paper discusses the similarities and differences of these genera, describes new species, makes some nomenclatural changes, and illustrates the genitalia for many species. New species described: Epopterus picticollis, E bioculatus, E. confusus, E gracilis, E. loretensis, E. anomalus, E. aravacus, E. atriventris, E. crypticus, E. quechuanus, E. callerianus, E. flavonotatus, E. submaculatus, E. parvus, Anidrytus nimbiferus, A. parki, A. compactus, A. gibbosus, A. circumcinctus, A. bechyneorum, A. batesi, A. mexicanus, A. trinitatis, A. major, A. humerosus, A. grandis, A. cardiosoma. New synonymies: E. vacuus …

Hexapod Herald - Vol. 9, No. 5, May 20, 1997

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Nebline, May 1997

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

earth wellness festival--a blast!
Festival wins award
Be a Better Gardener program gets youth off to a good start
Girdling tree roots
Designer greens
Garden pets
Over the garden fence
Lilacs in the landscape
Free latex paint exchange
Plants deer will not eat
The Antelope Commons Project good for Holmes Lake
Where have all the honey bees gone?
BLUE THUMB program “Giving Water a Hand”
The ups and downs of newsprint recycling
Earthworm casts can predict soil health
Postemergence weed control in alfalfa
Putting CRP back in production
Cleaning can be dangerous
The methodology and ramifications of greenbelting all agricultural …

Homology Among The Autosomal Chromosomes Of Boophilus Annulatus (Say) And B. Microplus (Canestrini), Bonnie S. Gunn

Theses and Dissertations - UTB/UTPA

Autosomes of Boophilus annulatus and B. microplus were compared using C- and G-bands to establish the degree of homology. Karyotypes of both species consisted of 20 autosomes and an XX:XO sex determination system with the X being the largest chromosome. All chromosomes of B. annulatus were acrocentric with heterochromatin limited to centromeric regions. The B. microplus karyotype was acrocentric with one band of noncentromeric heterochromatin occurring in three chromosome pairs. Interspecific comparisons indicated seven pairs of G-band homologous autosomes and three G-band homologous pairs when added interstitial heterochromatin was considered. The number three chromosome of both species showed variation in …

Effects Of Tsetse Dna Virus Infection On The Survival Of A Host Fly,Glossina Morsitans Centralis(Diptera; Glossinidae), Rosemary C. Sang, Walter G.Z.O. Jura, Leonard H. Otieno, Peter M. Tukei, Richard W. Mwangi

All Peer-Reviewed Publications

Freshly deposited third instarGlossina morsitans centralislarvae were infected with the tsetse DNA virus by microinjection. At emergence comparative observations were made on longevity and feeding behavior of infected and control flies. Gut tissues from the control and virus-infected flies were fixed and processed for light and electron microscopy. The longevity of infected flies was significantly reduced compared to that of the controls (P<0.05). The main mortality factors in the virus-infected flies with severe lesions in the salivary glands were starvation due to failure to feed and clotting of blood in and/or rupture of the crop. Rupture of the midgut also caused some mortalities. Infected flies probed significantly more times during feeding to repletion (P<0.05) and took significantly longer to feed compared to the control flies (P<0.05). Infected flies which fed took significantly less blood compared to the controls (P<0.05). Histological studies revealed pathological changes in the epithelial cells of the anterior midgut secretory midgut and the posterior midgut. There was severe disintegration of the membranous organelles, especially the mitochondria and rough endoplasmic reticulum, leading to extensive vacuolation in such epithelial cells. No viral particles were observed in the secretory and posterior midgut. Virions were observed in the anterior midgut lumen and occasional particles were seen invading the epithelial cells in this area of the midgut, especially in heavily infected flies. © 1997 Academic Press.

Haemolymph Ecdysteroids And The Prothoracic Glands In The Solitary And Gregarious Adults Of Schistocerca Gregaria, Amer I. Tawfik, Anna Vedrová, Weiwei Li, František Sehnal, D. Obeng-Ofori

All Peer-Reviewed Publications

The haemolymph titre of ecdysteroids rises in the adults of both sexes to a brief peak in the first week after emergence. A major rise begins on days 8-10, coincidentally with intensive vitellogenesis in the females and aggregation pheromone production in the males. The titre reaches about 400 ng of 20-hydroxyecdysone (20E) equiv./ml in the solitary, but less than 150 ng/ml in the gregarious adults of both sexes. In the females, the titre drops after oviposition (prior to day 20) and remains low until the next egg batch matures; then it increases in either phase to 150-180 ng/ml. A similar …

Hexapod Herald - Vol. 9, No. 4, April 8, 1997

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Nebline, April 1997

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Recognizing volunteers
New faces at Lancaster County Cooperative Extension
Educate yourself before you buy
Over the garden fence
Don't just smell the flowers...prune
All-America rose selection 1997 winners
Healthy transplants for the home garden
1997 Household Hazardous Waste Collections
Control sugar ants with baits: a least toxic alternative
Backyard Stewardship
Termite Control Workshop for Homeowners
Why are woodpeckers beating on my house?
Robins keep banging into my window--why?
Prevent grass tetany
UNL Crop Management Winter Curriculum a success!
Switch to narrow-row corn planting may not pay off
Use anhydrous ammonia safely
Monitor stored grain to prevent spoilage
Seed coatings on …

United States Patent: 315 Buffalograss, Terrance P. Riordan, Susan De Shazer Steele, Milton C. Engelke, Leonard A. Wit Jr., Frederick P. Baxendale, Jeana L. F. Svoboda, Jennifer M. Johnson-Cicalese, Edward J. Kinbacher

Department of Entomology: Faculty Publications

A vegetatively reproduced buffalograss cultivar, named 315 Buffalograss, is distinguished by its excellent dark green color, high density, low growth habit, drought resistance, heat and cold tolerance, wear tolerance, low maintenance requirements and slow rate of establishment.

Effects Of Shelterbelts On The Aerial Distribution Of Insect Pests In Muskmelon, Mary Ellen Dix, Laurie Hodges, James R. Brandle, Robert J. Wright, Mark O. Harrell

Department of Entomology: Faculty Publications

Sticky traps were used to measure how tree shelterbelts influence the abundance of crop insect pests and beneficial arthropods in muskmelon (Cucumis melo L.) plots in eastern Nebraska. Abundance of striped cucumber beetles {Acalymma vittatum Fabricius (Coleoptera: Chrysomelidae)} , southern corn rootworms {Diabrotica undecimpunctata howardi Barber (Coleoptera: Chrysomelidae)}, and northern corn rootworms {D. barberi Smith & Lawrence (Coleoptera: Chrysomelidae)} was similar in exposed and sheltered plots. Western corn rootworms {D. virgifera LeConte (Coleoptera: Chrysomelidae)} were significantly more abundant in exposed plots. More lady beetles (Coleoptera: Coccinellidae) and ichneumonid wasps (Hymenoptera: Ichneumonidae) were caught on traps …

Effects Of Alachlor On An Algal Community From A Midwestern Agricultural Stream, Rebecca Spawn, Kyle D. Hoagland, Blair Siegfried

Department of Entomology: Faculty Publications

The effects of a single pulse, 21-d exposure of the commonly used herbicide alachlor (2-chloro-2′, 6′-diethyl-N-methoxymethyl acetanilide) on an algal community from a typical agricultural stream in Nebraska were studied using 18 stream microcosms located in a greenhouse, at six alachlor concentrations (0, 1, 10, 30, 100, and 1,000 μg/L). Effects of alachlor exposure at 1.0 μg/L were not significant (p < 0.05); however, at all other concentrations, alachlor had a significant negative effect on algal biomass. Differential taxonomic responses were observed, with approximately half the dominant algal taxa affected at levels >10 μg/L. Some taxa recovered from exposure by day 7, while others took longer or did not recover. A shift in the dominant algae was observed at higher concentrations (30, 100, 1,000 μg/L), and after 21 d these streams …

Susceptibility Of Stable Flies (Diptera: Muscidae) From Southeastern Nebraska Beef Cattle Feedlots To Selected Insecticides And Comparison Of 3 Bioassay Techniques, Paula C. R. G. Marcon, Gustave D. Thomas, Blair Siegfried, John B. Campbell

Department of Entomology: Faculty Publications

Insecticide susceptibility of field populations of stable flies, tomoxys calcitrans (L.), was assayed using 3 exposure techniques: treated filter papers, treated glass petri dishes, and topical applications. Both topical applications and residual exposure to treated glass surfaces were suitable for testing susceptibility of stable flies to permethrin, stirofos, or methoxychlor. Residues on filter papers yielded inconsistent results with stirofos and methoxychlor. Significant concentration-mortality regression lines were generated with permethrin residues on filter papers, but ~1,000 times more insecticide was required to produce a toxic response when compared with permethrin residues on glass. Because of higher variability in response and the …

Hexapod Herald - Vol. 9, No. 3, March 24, 1997

Hexapod Herald and Other Entomology Department Newsletters

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