Entomology Commons^™

Notes On Mayfly Nymphs From Northeastern Minnesota Which Key To Stenonema Vicarium (Ephemeroptera: Heptageniidae), Thomas M. Lager, Philip A. Lewis

The Great Lakes Entomologist

(excerpt)

A review of the literature indicates that Stenonema vicarium (Walker) adults have not been collected from northeastern Minnesota. However, mayfly nymphs which key to that species, based on the descriptions in Lewis (1974), have been collected from many streams in the area which are also inhabited by nymphs of the closely related species, Stenonema fuscum (Clemens).

Fall Termination Of Aestivation And Field Dispersal Of The Alfalfa Weevil (Coleoptera: Curculionidae) In Illinois, R. J. Barney, S. J. Roberts, R. D. Pausch, E. J. Armbrust

The Great Lakes Entomologist

Emergence traps, flight traps, sweeping, and egg sampling were employed to determine fall termination of aestivation of the alfalfa weevil, Hypera postica, and patterns and timing of field reentry, and subsequent fall oviposition. Adult alfalfa weevils were found to terminate aestivation in wood edge field borders in mid-late October. Field reentry began in late October as a gradual process, starting at wooded field borders, with the field population equally dispersed by mid-November.

Two Trapping Systems To Determine Incidence And Duration Of Migration Of Adult Alfalfa Weevils, Hypera Postica (Coleoptera: Curculionidae), S. J. Roberts, R. D. Pausch, E. J. Armbrust, R. J. Barney

The Great Lakes Entomologist

Emergence and flight traps were used to study the pre- and post-diapause movements of the alfalfa weevil, Hypera postica. The emergence traps proved to be an excellent tool in determining the time of diapause termination and in providing an accurate accounting of the number of weevils per unit area in aestivation sites. The flight traps showed when diapause flights to and from alfalfa fields took place. Both trapping systems can be utilized in a pest control program to locate more closely where the alfalfa weevil aestivates and when diapause related movements occur.

Alternatives To The Gypsy Moth Eradication Program In Michigan, Joseph G. Morse, Gary A. Simmons

The Great Lakes Entomologist

Responding to questions of what the gypsy moth, Porthetria dispar, would do in Michigan forests, a computer simulation model was constructed. The model consisted of three subunits: a submodel of gypsy moth population dynamics, a submodel of forest growth and a submodel of tree defoliation and mortality. Several different policies were simulated for an 80 year period. The eradication policy now employed in Michigan failed due to survival of small portions of the population. Allowing the gypsy moth to become established in Michigan forests and then responding by spraying when defoliation is visible provided a policy with the least …

New Species Of Sminthuridae From North America (Collembola: Symphypleona), Richard J. Snider

The Great Lakes Entomologist

(excerpt)

This account is the result of efforts by Drs. Kenneth Christiansen and Peter Bellinger to amass and examine the major collections of North American Collembola. Their work will culminate in a descriptive monograph on the Collembola-fauna of North America. The author agreed to describe part of the new species of Sminthuridae extracted from those collections. The analysis of specimens justifies erection of 17 species new to science.

Larval Ecology Of Some Lower Michigan Black Flies (Diptera: Simuliidae) With Keys To The Immature Stages, Richard W. Merritt, Douglas H. Ross, B. V. Peterson

The Great Lakes Entomologist

The species composition, succession, and seasonal abundance of -immature simuliids ocmrrhg in the Rose Lake Wildlife Research Area in lower Michigan are presented. Selected physical and chemical characteristics of streams in the above area were examined and compared in relation to faunal distributions. Comparisons of species differences between permanent and temporary streams were made utilizing the functional group concept based on feeding mechanisms.

Keys and illustrations are presented for the identiiication of larvae and pupae of four genera (Prosimulium, Simulium, Stegopterna, Cnephia) and 19 species of Simuliidae known to occur in lower Michigan. Two species, Cnephia ornithophilia and Simulium vemum, …

The Life Cycle Of The Mayfly Stenacron Interpunctatum (Ephemeroptera: Heptageniidae), W. P. Mccafferty, B. L. Huff Jr

The Great Lakes Entomologist

Larval growth and development of Stenacron interpunctatum was studied for a one year period at Wildcat Creek, Indiana. Analysis of developmental stages and sue classes revealed three broods at different degrees of maturation at any one time of year. Broods emerged in early spring, mid-summer, and late summer-early fall, respectively; the former two overwintering in different stages of larval development, and the latter completing development in one growing season in warm temperatures and maturing at relatively smaller sizes. The population possessed a complex life cycle ranging from one generation per year to three generations every two years. General sampling over …

Wyoming Producer Priorities And Perceptions Of Alfalfa Insect Pests, Randa Jabbour, Shiri Noy

Faculty Publications

No abstract provided.

Behavior At A Nesting Site And Prey Of Crabro Cribrellifer (Hymenoptera: Sphecidae), Edward M. Barrows, Patricia L. Lebau, Cathlyn E. Eckstein

The Great Lakes Entomologist

In Michigan, Crabro cribrellifer tends to show nest clumping within a nest aggregation. Its nesting behavior is similar to that of other Crabro, and it preys on Neoitamus flavofemoratus (Diptera: Asilidae) on warm days in July. Miltogrammine flies Metopia campestris are active at the nesting site.

New World Limnichinae Iv. Eulimnichus Casey. A. Synonymies, Lectotype Designations, And Redescriptions (Coleoptera: Limnichidae), David P. Wooldridge

The Great Lakes Entomologist

A recharacterization of Eulimnichus and redescriptions for all previously described species are presented. In most cases, illustrations of the aedeagus are also presented. Seven names are placed in synonymy, and a new name E. impostus, is proposed for E. elongatus (Pic) which is preoccupied. Lectotype designations are made for 10 of the 14 species and one synonymous species.

A List Of The Scutelleroidea (Hemiptera) Of Southern Illinois, J. E. Mcpherson

The Great Lakes Entomologist

A list of the Scutelleroidea of southern Illinois is presented with information on the state distribution of each species.

Effects Of Various Photoperiods On Color And Pubescence In Thyanta Calceata (Hemiptera: Pentatomidae), J. E. Mcpherson

The Great Lakes Entomologist

Rearing immatures of Thyanta calceata in a Iange of photoperiods showed that a threshold photoperiod is involved in the adult dimorphic response (color and pubescence) with the mean threshold near 12.5L: 11.5D. This threshold is consistent with the seasonal distribution of the adult morphs.

A Natural Subgeneric Classification Of Ephemerella Bartoni And Related Species (Ephemeroptera: Ephemerellidae), W. P. Mccafferty

The Great Lakes Entomologist

Phyletic relationships indicate that Ephemerella bartoni Allen should be excluded from the subgenus Dannella in order to prevent a polyphyletic and impractical classifica- tion. A classification in the subgenus Eurylophella is more consistent with the species' phyletic relationships.

Annotated List Of Caddisflies (Trichoptera) Occurring Along The Upper Portion Of The West Branch Of The Mahoning River In Northeastern Ohio, Eric P. Mcelravy, B. A. Foote

The Great Lakes Entomologist

Information is given on the seasonal distribution of 85 species of Trichoptera collected along a small, relatively unpolluted stream in northeastern Ohio.

Annotated List Of Stoneflies (Plecoptera) From Stebbins Gulch In Northeastern Ohio, Martin A. Tkac, B. A. Foote

The Great Lakes Entomologist

(excerpt)

Stebbins Gulch is situated within property owned by The Holden Arboretum in northwestern Geauga County, Ohio, approximately 8.0 km east of the village of Kirtland (Fig. 1). Physiographically, the Arboretum is included within the Southern New York Section of the Appalachian Plateau Province (Feldman et al., 1977). This Section was overridden by several advances of Pleistocene glaciation, the latest of which receded some 13,000 years ago. It is characterized by poorly drained surfaces containing many bogs, ponds, and lakes, except near the Portage Escarpment where small rivers have excavated relatively deep valleys.

Baetis (Ephemeroptera: Baetidae) Of Wisconsin, Edward A. Bergman, William L. Hilsenhoff

The Great Lakes Entomologist

Data on life histories and environmental requirements for species in many mayfly genera remains sketchy at best This is certainly true of Baetis, which is one of the most common components of Wisconsin's lotic fauna. Most Wisconsin streams that are not grossly pobted contain one or more species of the minnow-like nymphs, which are usually found clinging to surfaces of rocks or aquatic plants. Biological studies of Baetis in North America have been neglected primarily because of their enigmatic taxonomy. Even keys of Needham et al. (1935) and Burks (1953), which are considered standard referenas, are either incomplete or difficult …

Incidence And Location Of Eastern Pineshoot Borer Damage In Some Scotch Pine Christmas Tree Plantations In Michigan (Lepidoptera: Olethreutidae), M. Mckeague, G. Simmons

The Great Lakes Entomologist

A survey of Christmas tree farms in Michigan revealed that 26% of the Scotch pine Christmas trees have one or more shoots injured by the eastern pineshoot borer, Eucosma gloriola Heinrich. Most attacks occurred on lateral branches in the top half of the tree. Only 2% of the observed trees had pineshoot borer injury on the terminal leader. Control except for normal shearing, was not recommended for most plantations.

Cereal Leaf Beetle (Coleoptera: Chrysomelidae) Influence Of Seeding Rate Of Oats On Populations, J. A. Webster, D. H. Smith, S. H. Gage

The Great Lakes Entomologist

In field and greenhouse studies, more cereal leaf beetle [Oulema melanopus (Lin- naeus)] eggs and larvae were found per unit area on spring oats, Avena sativa L., planted either at intermediate (54 kg/ha) or high (136 kg/ha) seeding rates, than when planted at a lower seeding rate (14 kg/ha). However, there were fewer eggs and larvae per stem in plantings of the high or intermediate rates than in those of the lower rate. Oats should not be planted at less than the recommended rates in beetle-infested areas.

Phenotypic Expression In The Paper Wasp Polistes Fuscatus (Hymenoptera: Vespidae), Bonnie K. Maclean, Leland Chandler, David B. Maclean

The Great Lakes Entomologist

Quantification of color/color pattern in Polistes fuscatus (Fabricius) revealed that these attributes were the interaction of two antagonistic color sequences; their expression being highly correlated with nest microclimate (relative humidity-temperature). Color/ color pattern expressions were modified under experimental conditions to produce forms having natural counterparts in the field.

Principal coordinates analyses and trend surface analyses using specimens collected throughout the United States indicated three color pattern trends, representing three distinct geographic areas, and, when objectively defined, without intergradation between and/or among areas. It was concluded that fuscatus should not be considered a widespread, polytypic species; rather, as three discrete species: …

A Local Replacement Of Bombus Ternarius By Bombus Terricola In Northern Wisconsin (Hymenoptera: Apidae), James D. Thomson

The Great Lakes Entomologist

During the last few years, the bumblebee Bombus ternarius Say has markedly decreased in numbers in Vilas County in northern Wisconsin while Bombus terricola Kirby has increased. The great ecological similarity of these species suggests that interspecific competition may cause or facilitate this replacement.

A New Species Of Podapolipid Mite, And A Redescription Of Tetrapolipus Blattae (Oudemans) (Acarina: Podapolipidae), Robert W. Husband

The Great Lakes Entomologist

A description of a new species of podapolipid mite, Tetrapolipus oudemansi, associated with the Philippine cockroach, Panesthia angustipennis (Illiger) is presented. Tetrapolipus blattae (Oudemans 19 11) collected from P. angustipennis from Java is redescribed.

A Modified Method For Reading Midges (Diptera: Chironomidae), Peter G. Meier, Henry C. Torres

The Great Lakes Entomologist

A small scale rearing chamber that provides a continuous source of different life stages of Glyptotendipes barbipes Staeger for bioassay studies was developed. A modified glass aquarium containing a substrate of shredded paper hand towels and artificial medium was employed. The amount of protein fed to the larvae can be used to trigger peak emergence, oviposition, and the rate of maturation. Fifty-three egg masses were sampled and 68% were fertile. Ninety-five percent of these hatched and 85% emerged as adults.

Mating Flights Of Ephoron Album (Ephemeroptera: Polymitarcidae) In Michigan, Kenneth J. Kraft, D. Kent Johnson, Richard H. Sypniewski

The Great Lakes Entomologist

Mating flights of the mayfly Ephoron album (Say) were observed on the Sturgeon River in Houghton County, Michigan, on five evenings between 16 and 22 August, 1977. Peak emergence occurred about 30 minutes befqre sunset on 19 August and the flight period lasted about two hours. Many more adult males than females were collected on three evenings, but on one evening females greatly outnumbered males collected.

Description Of The Nymph Of Centroptilum Walshi (Ephemeroptera: Baetidae), With Biological Notes, Edward A. Bergman, William L. Hilsenhoff

The Great Lakes Entomologist

The nymph of Centroptilum walshi McDunnough is described. C. walshi appears to be bivoltine in Wisconsin, with emergences throughout June into early July and from late August to early November. Mature nymphs were smallest when stream temperatures were the warmest. The nymphs were closely associated with Ranunculus sp., and numbers increased when the Ranunculus beds became more dense.

Male Behavior In Evagetes Subangulatus (Hymenoptera: Pompilidae), Edward M. Barrows

The Great Lakes Entomologist

Males of Evagetes subangulatus patrolled primarily among shrubs in an area where females dug in soil. Twenty-nine individually-marked males were seen from 0 to 16 days after marking. They shared a home range space of about 400 m3. Although they did not exhibit territoriality, they chased and pounced upon one another and upon unmarked, conspecific males and females.

Sensitivity Of Immature Thyanta Calceata (Hemiptera: Pentatomidae) To Photoperiod As Reflected By Adult Color And Pubescence, J. E. Mcpherson

The Great Lakes Entomologist

Dimorphism in color and pubescence of adult Thyanta calceata, in response to 8L:16D and 16L:8D photoperiods, resulted from an accumulation of photoperiod effects on two or more immature stages. More immature stages were receptive to 8L:16D than to 16L:8D photoperiod influence.

Feeding Preference Studies Of Adult Nezara Viridula (Hemiptera: Pentatomidae) Morphs From India And The United States, Jerald R. Dewitt, Edward J. Armbrust

The Great Lakes Entomologist

Nezara viridula (Linnaeus) morphs from India and the United States were studied in a laboratory comparison of feeding preferences for pods of soybeans, Glycine max, and green beans, Phaseolus vulgaris. Adults of a morph from the U.S. apparently selected pods at random, while three sympatric morphs from India generally preferred green bean pods.

The Effect Of Repeated Low Temperature On Eggs Of The Alfalfa Weevil (Coleoptera: Curculionidae), L. J. Crain, E. J. Armbrust

The Great Lakes Entomologist

Three ages of alfalfa weevil, Hypera postica (Gyllenhal) eggs were exposed to repeated exposures of -15 and -20°C. Fresh-laid eggs were quite susceptible and 3- and 5day old eggs were relatively resistant to -15'C, but all ages of eggs showed considerable susceptibility to -20°C, with an average LT50 of 2.2 days. Comparison of this data with similar studies utilizing constant low temperature exposures showed the effect to be independent of temporal interruptions.

Degree-Day Summation And Hatching Of The Forest Tent Caterpillar, Malacosoma Disstria (Lepidoptera: Lasiocampidae), William J. Mattson Jr., Glen W. Erickson

The Great Lakes Entomologist

(excerpt)

The forest tent caterpillar, Malacosoma disstria (Htibner), is a common defoliater of deciduous trees throughout most of the United States and Canada. It is a well known outbreak species, whose populations erupt periodically (every 10 to 16 years) when forest conditions are suitable. Typical outbreaks last three to six years in a given geographic area and then collapse as quickly as they arise. This note documents the relation between forest tent caterpillar egg hatching in the field and heat accumulation (degree-days) leading up to hatch. This information will permit (a) predicting the date on which eggs will hatch by …

New Distribution Records For Mosquitoes In Michigan (Diptera: Culicidae), John R. Cassani, Roger G. Bland

The Great Lakes Entomologist

(excerpt)

Since the late 1940's very little information has appeared in the literature dealing with the geographical distribution of mosquitoes in Michigan. The earliest attempt at establish- ing a comprehensive list of species was made by Irwin (1941) who catalogued 43 species by county. A survey by Pederson (1947) resulted in the collection of 48 species and provided the most extensive distribution list of mosquitoes in Michigan. Recent studies by Newson et al. (1975), McGroarty et al. (1976) and Grimstad (1977) have contributed several new distribution and state records.

Prompted by the 1975 St. Louis encephalitis outbreak in Michigan, and …