Entomology Commons^™

A New Species Of Neoscelis From Jalisco, Mexico (Coleoptera: Scarabaeidae: Cetoniinae), Alan D. Mudge, Brett C. Ratcliffe, Richard L. Westcott, Felipe A. A. Noguera

University of Nebraska State Museum: Entomology Papers

Neoscelis coracina Mudge et Ratcliffe sp. n., from Jalisco, Mexico, is described and illustrated. Intraspecific variation is discussed, and diagnostic characters separating N. coracina sp. n. from N. dohrni (Westwood, 1855) are given. The key to males of New World Goliathini is revised. Notes on habitat, behavior, and collecting N. coracina sp. n. are included. A new state record is provided for N. dohrni.

The Dynastine Scarab Beetles Of Costa Rica And Panama (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe

Bulletin of the University of Nebraska State Museum

The 157 species of dynastine scarab beetles that occur in Costa Rica and Panama are comprehensively reviewed. Keys, descriptions, distributions, and notes on biology are provided for all species as well as illustrations and maps. The larvae of Enema endymion, Heterogomphus chevrolati, and Dynastes hercules are described for the first time. Also included are synopses of the higher-level taxa, a glossary, a gazetteer of place names, and a species checklist.

The following new species are described: Cyclocephala alazona, C. enigma, C. labidion, C. marylizae, C. mustacha, C. stockwelli, C. una mas (all Cyclocephalini); Irazua dilicra (Oryctini); Amblyoproctus centroamericanus, Hemiphileurus curoei, …

In-Field Labeling Of Western Corn Rootworm Adults (Coleoptera: Chrysomelidae) With Rubidium, Timothy M. Nowatzki, Bradley Niimi, Kelli J. Warren, Sean Putnam, Lance J. Meinke, David C. Gosselin, F. Edwin Harvey, Thomas E. Hunt, Blair D. Siegfried

Department of Entomology: Faculty Publications

Field and laboratory studies were conducted in 2000 and 2001 to determine the feasibility of mass marking western corn rootworm adults, Diabrotica virgifera virgifera LeConte, with RbCl in the field. Results showed that application of rubidium (Rb) in solution to both the soil (1 g Rb/plant) and whorl (1 g Rb/plant) of corn plants was optimal for labeling western corn rootworm adults during larval development. Development of larvae on Rb-enriched corn with this technique did not significantly influence adult dry weight or survival. Rb was also highly mobile in the plant. Application of Rb to both the soil and the …

Sp341-V-Sampling Stored Grain For Insects, Molds And Related Problems, The University Of Tennessee Agricultural Extension Service

Field & Commercial Crops

The periodic and timely sampling of stored grains can detect existing or potential problems before considerable damage has occurred. Proper sampling of stored grain can reveal increases in moisture or temperature and insect or mold problems in the grain.

It is important to be aware of the potential hazards of sampling inside a grain bin. Suffocation can occur in grain bins, and sampling should be done with caution.

Sp290-F Maple Leaf Pouch Galls, The University Of Tennessee Agricultural Extension Service

Forestry, Trees, and Timber

Eriophyid mite species cause a variety of pouch galls on red, sugar and silver maples. Pouch gall formation, a localized growth reaction of the infested plant, occurs as a result of mite feeding activity. The species of mite can be identified by the specific characteristics of the gall on the host plant.

Characterization Of General Esterases From Methyl Parathion-Resistant And -Susceptible Populations Of Western Corn Rootworm (Coleoptera: Chrysomelidae), Xuguo Zhou, Michael E. Scharf, Lance J. Meinke, Laurence D. Chandler, Blair D. Siegfried

Department of Entomology: Faculty Publications

A consistent correlation between elevated esterase activity and methyl parathion resistance among Nebraska western corn rootworm, Diabrotica virgifera virgifera LeConte, populations has previously been documented. Characterization of general esterase activity using naphtholic esters as model substrates indicated that differences between resistant and susceptible strains could be maximized by optimizing assay conditions. The optimal conditions identified here were similar to those reported for other insect species. The majority of general esterase activity was found in the cytosolic fractions of resistant populations, whereas the activity was more evenly distributed between cytosolic and mitochondrial/nuclear fractions in the susceptible population. General esterase activity was …

Chinch Bug-Resistant Buffalograss: An Investigation Of Tolerance, Antixenosis, And Antibiosis, Tiffany Heng-Moss, Frederick P. Baxendale, Terrance P. Riordan, Linda J. Young, Kit Lee

Department of Entomology: Faculty Publications

Choice and no-choice studies were conducted to determine the categories (antibiosis, antixenosis, and tolerance) of resistance of four buffalograsses (NE91-118, ‘Bonnie Brae’, ‘Cody’, and ‘Tatanka’) previously identified as resistant to the western chinch bug, Blissus occiduus Barber. Antibiosis studies found no significant differences in western chinch bug fecundity, nymphal development, or survival among the resistant and susceptible buffalograsses. Tolerance studies indicated that NE91-118, Cody, and Tatanka exhibited moderate-to-high levels of tolerance based on western chinch bug damage ratings and plant height, whereas Bonnie Brae exhibited moderate-to-low levels of tolerance. Choice studies indicated the presence of antixenosis in NE91-118, whereas Cody …

A Case For Taxonomic Recognition Of The Taxon Enodia Anthedon Borealis A. H. Clark (Satyridae), Alex Grkovich, Harry Pavulaan

The Taxonomic Report of the International Lepidoptera Survey

Clark (1936) described the taxa anthedon and borealis both as new subspecies of Enodia portlandia (Fabricius, 1781). Clark described borealis as the northernmost phenotypically different taxon in this group. Anthedon later became recognized as a distinct species with borealis as a subspecies of it. Masters (1971) characterized E. anthedon borealis as displaying several subtle phenotypic differences from nominotypical anthedon and also noted significant differences in behavior and habitat and reinforced the continued recognition of borealis as a valid subspecies. However, a number of publications after 1971 generally failed to recognize subspecific status for borealis, either ignoring borealis entirely …

A Taxonomic Review Of Chlosyne Ismeria With Description Of A New Subspecies From The Southern Appalachian Mountains, Ronald R. Gatrelle

The Taxonomic Report of the International Lepidoptera Survey

The taxon Boisduval and Le Conte described in 1833 as Melitaea ismeria is examined as a historical entity and confirmed as a sister subspecies of the taxon Chlosyne ismeria nycteis. The ismeria populations in the southern Appalachian mountains (United States) are described as a new subspecies: Chlosyne ismeria obsoleta. In facies, this new subspecies is most similar to the western subspecies Chlosyne ismeria drusius in that it is dark and contrasting in its dorsal markings. It is known to range from the mountain region of extreme northern Georgia north in the Appalachians to near southwestern Virginia, United States. …

Convergent Habitat Segregation Of Aedes Aegypti And Aedes Albopictus (Diptera : Culicidae) In Southeastern Brazil And Florida, Marieta A H Braks, Ricardo Lourenco-De-Oliveira, Steven A. Juliano, Nildimar A. Honorio, L Philip Lounibos

Faculty Publications – Biological Sciences

During the rainy season of 2001, the incidence of the dengue vectors Aedes aegypti and Ae. albopictus was examined in different habitats of two cities (Rio de Janeiro and Nova Iguacu) in Rio de Janeiro State, Brazil, and in two cities (Palm Beach and Boca Raton) in Florida. Oviposition trap collections were performed in urban, suburban, and rural habitats in both areas. Our hypothesis that the abundances and frequencies of occurrence of Ae. aegypti and Ae albopictus are affected in opposite ways by increasing urbanization was only partially supported. City, habitat, and their interaction significantly affected the abundance of both …

Does Landscape Diversity Slow The Spread Of Rotation-Resistant Western Corn Rootworm (Coleoptera: Chrysomelidae)?, D. W. Onstad, D. W. Crwoder, S. A. Isard, E. Levine, J. L. Spencer, Matthew E. O'Neal, S. T. Ratcliffe, M. E. Gray, L. W. Bledsoe, C. D. Di Fonzo, J. B. Eisley, C. R. Edwards

Matthew E. O'Neal

A behavioral change in some western corn rootworm (Diabrotica virgifera virgifera LeConte) populations is threatening the effectiveness of crop rotation, a successful management strategy for controlling this pest. We created a set of simple meteorologic and behavioral models that can be used to predict the spread of the beetle infesting soybean (Glycine max (L.)) throughout the midwestern United States. We used data collected in Illinois, IN, MI, and Ohio to create maps of observations to evaluate the model. We displayed data on the maps using detection thresholds for western corn rootworm in soybean fields of 10 or 20 beetles per …

An Investigation Of Variables That Affect Foraging In The Leaf-Cutting Ant, Atta Cephalotes (Formicidae), Kati Buckingham

WWU Honors College Senior Projects

Efficient foraging methods are essential to colony survival in the leaf-cutting ant Atta cephalotes. One parameter of efficiency is the speed at which laden foragers return to the nest. This study examines the effects of ant size, load size, trail activity, and the number of collisions an ant incurs with other ants or objects on velocity for four A. cephalotes colonies in Costa Rica. Multiple linear regression analysis yielded a model which suggests that velocity decreases as loading index and the number of collisions increase. Results of a theoretical analysis using the regression model indicate that the ants select …

Hexapod Herald - Vol. 15, No. 5, October 2003

Hexapod Herald and Other Entomology Department Newsletters

Welcome

Congratulations

Faculty news

Publications

Museum news

Fond farewells

Grants

Graduate student news

From the office

Checklist Of The Scarabaeoidea Of The Nearctic Realm, Andrew B. T. Smith

University of Nebraska State Museum: Entomology Papers

Includes Canada, the continental United States, and the following states of northern México: Baja California, Baja California Sur, Chihuahua, Coahuila de Zaragoza, Durango, Nuevo Leon, Sinaloa, Sonora, Tamaulipas, and Zacatecas. Version 3 - released 25 September 2003.

The checklist is organized taxonomically at the family group level. The genera and species are listed in alphabetical order. The parentheses following species names indicate the genus in which the species was originally placed.

Please contact me with any updates or corrections, no matter how minor.

Suggested citation:
Smith, A. B. T. 2003. Checklist of the Scarabaeoidea of the Nearctic Realm. Version 3. …

Research On The Genetics Of Screwworms In Lincoln, Nebraska, Steven Skoda, Dennis Berkebile, Margaret Allen

Department of Entomology: Faculty Publications

The success of the screwworm eradication program - these pests have been eliminated from the North American continent to Panama - has been facilitated by insightful research. The recent research on screwworms by ARS scientists at Lincoln, NE has concentrated on 1) discovering molecular markers useful in population genetics and population identification; 2) genetic research useful in developing a genetic sexing strain (males-only) in screwworms. Amplified fragment length polymorphisms (AFLP) have been studied in screwworms; this technique shows the potential for use in population identification and population genetics. AFLP's will be further explored to determine their utility: a grant proposal …

Book Review: Insecta Coleoptra Chironidae (Huchet, J.-B. 2003), Andrew B. T. Smith

University of Nebraska State Museum: Entomology Papers

The Fauna of Madagascar series has been around for almost 50 years. In that time authors have published on a variety of taxa that occur on this remarkable island. Throughout the history of the series there has been a heavy emphasis on beetles. The latest volume by Jean-Bernard Huchet is no exception. Huchet is an expert on Chironidae (or Chironinae depending on which scarab classification scheme you ascribe to). He is in the process of giving a much-needed taxonomic overhaul to the group. Chironidae are odd-looking scarabs that occur in Africa, Asia (mainly India), and Madagascar and are allied taxonomically …

Replacement Names For The Genera Batesiana Erwin (Coleoptera: Carabidae) And Metabolus Fairmaire (Coleoptera: Scarabaeidae: Melolonthinae), M. J. Paulsen, Andrew Smith

University of Nebraska State Museum: Entomology Papers

While curating scarab beetles in the University of Nebraska State Museum collection, we discovered two generic names that are homonyms. As this renders these names invalid, we herein propose replacement names for the junior homonyms as follows.
Erwiniana Paulsen and Smith new genus
Ablotemus Paulsen and Smith new genus

Parasitoids And Parasites Of Spodoptera Frugiperda (Lepidoptera: Noctuidae) In The Americas And Caribbean Basin: An Inventory, Jaime Molina-Ochoa, James E. Carpenter, Elvis A. Heinrichs, John E. Foster

Department of Entomology: Faculty Publications

An inventory of parasitoids and parasites of fall armyworm (FAW), Spodoptera frugiperda (J. E. Smith), was conducted using references describing parasitized FAW eggs, larvae, pupae and adults collected from different crops or habitats throughout the Americas and the Caribbean Basin. The crops and countries where these parasites were reported occurring in the Americas is also inventoried. Maize was the crop where the FAW was more frequently collected followed by rice. Overall, Chelonus insularis (Cresson) had the broadest natural distribution in the Americas. For the North American region C. insulares , Chelonus sp., and Euplectrus platyhypenae (Howard) were the most …

Sp290-R-Whiteflies In Ornamentals, The University Of Tennessee Agricultural Extension Service

Home Garden, Lawn, and Landscape

Whiteflies are economically important insects on ornamentals grown in the greenhouse. Although these pests are most serious in the greenhouse, whiteflies may also attack ornamental plants grown outdoors. Some of the preferred woody ornamental hosts include barberry, redbud, Fucshia, honeylocust, black locust, Hibiscus, Lantana, coffeeberry, rose and Jerusalem cherry.

Sp290-T-Holly Leafminers, The University Of Tennessee Agricultural Extension Service

Home Garden, Lawn, and Landscape

Holly leafminers are the most injurious pests of holly in the eastern United States. The holly leafminer was introduced from Europe. This insect is a primary pest of American or Christmas holly. Injury results from the larval mining activity just under the upper leaf surface. Additional damage is caused when females repeatedly puncture the leaves with their ovipositor (egg-laying structure). Punctured leaves become deformed.

Review Of The Tribe Melolonthini In The Southeastern United States (Coleoptera: Scarabaeidae: Melolonthinae), Paul E. Skelley

University of Nebraska State Museum: Entomology Papers

This paper reviews the tribe Melolonthini (Scarabaeidae, Melolonthinae) in the southeastern United States, primarily in the states of Mississippi, Alabama, Georgia, and northern Florida. Four new species are described: Gronocarus inornatus, Hypothyce burnei, Polyphylla donaldsoni, and Polyphylla woodruffi. One new synonymy is made: Gronocarus multispinosus Howden is synonymized under Gronocarus autumnalis Schaeffer. Description of the previously unknown female is made for Polyphylla brownae Young. New collection records are presented for many species. Comments on natural histories and a key to species (omitting only species of the genus Phyllophaga Harris) in this region are presented.

Ataeniopsis Edistoi (Cartwright) In Florida (Scarabaeidae: Aphodiinae), Paul E. Skelley

University of Nebraska State Museum: Entomology Papers

Ataenius edistoi Cartwright (1974) was described from a series of eight specimens collected near the Edisto River in South Carolina. All were "collected under surface litter on sandy but hard ground along the roadside". According to Cartwright (1974) attempts to collect the species at light at the type locality were not successful, indicating the species does not come to light. The species was transferred to the genus Ataeniopsis Petrovitz by Stebnicka (2003) in a revision of the genus. Ataeniopsis differs from Ataenius Harold in that the apical half of the pygidium in Ataeniopsis is smooth and glabrous, while in Ataenius …

A New Species Of Lomanoxia Martínez From Costa Rica (Coleoptera: Scarabaeidae: Aphodiinae), Paul E. Skelley, Henry F. Howden

University of Nebraska State Museum: Entomology Papers

A new species of Lomanoxia Martínez is described from Costa Rica: L. canthonopsis Skelley and Howden. This represents the first member of the genus reported from Central America. The status of the tribe Lomanoxini Stebnicka is evaluated and is here synonymized under Eupariini LePeletier and Serville.

Taxonomic Changes For Fifteen Species Of North American Mordellidae (Coleoptera), Anneke E. Lisberg

Insecta Mundi

In an attempt to more consistently apply generic concepts, 13 species of Mordellidae are transferred to different genera. Mordellistena bihamata (Melsheimer) and Mordellistena discolor (Melsheimer) are transferred to Falsomordellistena Ermisch, 1941, while 11 species (Mordellistena ancilla LeConte, Mordellistena floridensis Smith, Mordellistena guttulata Helmuth, Mordellistena impatiens LeConte, Mordellistena infima LeConte, Mordellistena lecontei Ermisch, Mordellistena minutalis Liljeblad, Mordellistena nigricans Melsheimer, Mordellistena parva Liljeblad, Mordellistena semiusta LeConte, and Mordellistena testacea Blatchley) are transferred to Mordellina Schilsky, 1908. Two species, Mordellistena rufa Liljeblad and Mordellina ustulata (LeConte), are proposed as junior synonyms of Mordellina ancilla (LeConte).

Pentatomidae (Heteroptera) Of Honduras: A Checklist With Description Of A New Ochlerine Genus, Nolberto Arismendi, Donald B. Thomas

Insecta Mundi

Abstract:
Through collecting, surveys of museum collections, and search of the literature, we are able to list 181 species of Pentatomidae as occurring within the boundaries of the Republic of Honduras. Most of these, 129, around 70%, are widespread in the American tropics. Twenty-nine species are new country records, reported for Honduras for the first time. Four species of pentatomids are endemic to Honduras including a new genus and species of ochlerine (Discocephalinae) herein described. Although a few species extend from South America into Honduras (the Gondwanan element), and a few from North America extend into Honduras (the Nearctic element), …

Descriptions Of The Male Of Heterodiomus Marchali Brèthes And A New Species Of Chilean Heterodiomus Brèthes (Coleoptera: Coccinellidae: Scymninae: Diomini), Guillermo Gonzalez F., Robert D. Gordon

Insecta Mundi

Additions to the classification of South American Diomini are provided. Male genitalia of Heterodiomus marchali Brèthes are described and Diomus brethesi is newly described.

Review Of Zethus Fabricius From The West Indies (Hymenoptera: Vespidae), Lionel A. Stange

Insecta Mundi

Eleven species of Zethus are reported for the West Indies including two new species. A re-evaluation of Z. albopictus Smith is accomplished based on new material from Hispaniola leading to the creation of a new species group. A new species from St. Vincent is described which is the first known representative of the Z. sichelianus group from the West Indies. Also, a new species of the Z. cubensis group is described from San Salvador. New records are provided for many species except Z. dentostipes Bohart and Stange, Z. islandicus Bohart and Stange and Z. arietis (Fabricius) which are still known …

A Revision Of Pediacus Shuckard (Coleoptera: Cucujidae) For America North Of Mexico, With Notes On Other Species, Michael C. Thomas

Insecta Mundi

The genus Pediacus Shuckard is revised for America north of Mexico. Seven species are recorded: P. andrewsi Thomas, n. sp.; P. fuscus Erichson; P. gracilis Thomas, n. sp.; P. hesperoglaber Thomas, n. sp.; P. ommatodon Thomas, n. sp.; P. stephani Thomas, n. sp.; and P. subglaber LeConte, new status. The species are described and illustrated, and a key is presented for their identification. The described European and Neotropical species are reviewed and illustrated.

A Passandrid New To The Bahamas (Coleoptera: Cucujoidea), Michael C. Thomas

Insecta Mundi

Catogenus darlingtoni Slipinski (1989) was described from two specimens, one each from Puerto Rico and Guana Island, British Virgin Islands. No additional specimens have been mentioned in the literature. This species and C. klapperichorum Burckhardt and Slipinski from Hispaniola comprise a group endemic to the Caribbean and differing from other members of the genus by having the clypeus modified (Fig. 1) and depressed below the general level of the rest of the head (Burckhardt and Slipinski 2003).

A Revision Of Pediacus Shuckard (Coleoptera: Cucujidae) For America North Of Mexico, With Notes On Other Species, Michael C. Thomas

Insecta Mundi

The genus Pediacus Shuckard is revised for America north of Mexico. Seven species are recorded: P. andrewsi Thomas, n. sp.; P. fuscus Erichson; P. gracilis Thomas, n. sp.; P. hesperoglaber Thomas, n. sp.; P. ommatodon Thomas, n. sp.; P. stephani Thomas, n. sp.; and P. subglaber LeConte, new status. The species are described and illustrated, and a key is presented for their identification. The described European and Neotropical species are reviewed and illustrated.