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Full-Text Articles in Entomology

A Natural Subgeneric Classification Of Ephemerella Bartoni And Related Species (Ephemeroptera: Ephemerellidae), W. P. Mccafferty Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 Oct 2017

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 …


On The Feeding Habits Of Phasganophora Capitata (Plecoptera: Perlidae), William P. Kovalak Oct 2017

On The Feeding Habits Of Phasganophora Capitata (Plecoptera: Perlidae), William P. Kovalak

The Great Lakes Entomologist

Gut contents of 230 nymphs of Phasganophora Capitata (Pictet) from the Pigeon River, Otsego County, Michigan were analyzed in relation to season, current velocity, time of day, predator size and prey abundance. Diet changed seasonally, related in part to seasonal changes in prey abundance. The diet of large and small nymphs was similar except that small nymphs ate smaller individuals. At lower current velocities capitata fed primarily on mayflies whereas at higher current velocities they fed primarily on caddis and dipterans.


Pre-Management Assessment Of Aquatic Macroinvertebrates In A Small, Sedimentary Drainage Area Of The Maumee And Lake Erie Basin, W. P. Mccafferty Oct 2017

Pre-Management Assessment Of Aquatic Macroinvertebrates In A Small, Sedimentary Drainage Area Of The Maumee And Lake Erie Basin, W. P. Mccafferty

The Great Lakes Entomologist

In order to establish baseline data adjunct to the research and development of soil conservation practices for sediment reduction in the Maumee River and Lake Erie, the aquatic macroinvertebrates of Black Creek and adjacent areas in northeastern Indiana were studied from 1974-1975. A total of 90 species of Insecta and Crustacea were taken, 69 from Black Creek. Species diversity indices ranged from 1.04 to 2.75 in two downstream locations and were generally reflective of stressed conditions related to channelization and sedimentation from the agrarian drainage area. Benthic species from the adjacent Maumee River potentially contribute in part to population maintenance …


An Analysis Of The Shore Beetle Communities Of Some Channelized Streams In Northwest Ohio (Coleoptera), Paul M. Holeski, Robert C. Graves Oct 2017

An Analysis Of The Shore Beetle Communities Of Some Channelized Streams In Northwest Ohio (Coleoptera), Paul M. Holeski, Robert C. Graves

The Great Lakes Entomologist

The present shore beetle communities of some northwest Ohio streams channelized between 1937 and 1973 were studied. Quantitative and qualitative analyses were made to determine the effects of channelization on the community and the results are discussed. Ninety species, chiefly Carabidae, Heteroceridae and Staphylinidae, were collected; at least 20 not previously reported from Ohio. In addition, some species associations are noted.


Crawling Water Beetles Of Wisconsin (Coleoptera: Haliplidae), William L. Hilsenhoff, Warren U. Brigham Oct 2017

Crawling Water Beetles Of Wisconsin (Coleoptera: Haliplidae), William L. Hilsenhoff, Warren U. Brigham

The Great Lakes Entomologist

(excerpt)

Haliplidae are smail water beetles, less than 5 mm long, that frequently occur in abundance in ponds, marshes, sloughs, and swamps and also along the margins of slow streams or lakes where there is not severe wave action. Adults are readily recognized by their yelloa- to orange ground color with black maculations on the elytra and sometimes on the head and pronotum (Figs. 1,3,4). They have a distinctive shape, being broadest at the basss of the elytra and tapered toward the posterior end. The metacoxae are covered by dis~ctive plates that are unique among water beetles (Fig. 2). The …


Observations On The Biology Of The Oak Twig Pruner, Elaphidionoides Parallelus, (Coleoptera: Cerambycidae) In Michigan, D. C. L. Gosling Oct 2017

Observations On The Biology Of The Oak Twig Pruner, Elaphidionoides Parallelus, (Coleoptera: Cerambycidae) In Michigan, D. C. L. Gosling

The Great Lakes Entomologist

(excerpt)

The oak twig pruner, Elaphidionoides parallelus (Newman) (Coleoptera: Cerambycidae) is rather common in southern Michigan where it attacks living oaks and other hardwoods. The damage it inflicts is rarely serious, but it may be considered a pest insect if only for the nuisance it creates for those who must clean up the often numerous small branches pruned from street, lawn, and park trees.


An Inventory Of Stored Grain Insects In Michigan, Robert F. Ruppel Oct 2017

An Inventory Of Stored Grain Insects In Michigan, Robert F. Ruppel

The Great Lakes Entomologist

(excerpt)

The problems with insects in commercial and farm-stored corn, small grains, dry beans, and soybeans are reduced to a minimum by Michigan's cool climate and usually short period of storage (Ruppel, 1976). Yet insects still infest scattered bins of grain in the state. The incidence of stored grain problems has increased over the past few years. This increase is attributed to an increase in farm storage, often under poor conditions. Poor ventilation of the grains that causes an increase in moisture content at the surface of the grains has been the most common problem. The result has been a …


Notes On Insect Injection, Anesthetization, And Bleeding., M. G. De Viedma, M. L. Nelson Oct 2017

Notes On Insect Injection, Anesthetization, And Bleeding., M. G. De Viedma, M. L. Nelson

The Great Lakes Entomologist

(excerpt)

In recent years there has been a burgeoning interest in insect cytogenetics, sometimes involving in vivo cultures of haematocytes for chromosomal analysis. Mitotic poisons, such as colchicine (Tyrkus, 1971), are commonly injected to produce metaphase plates. Likewise, injection of toxins is now common-place in applied insect research. However, surprisingly little general information on injection is available in the literature. The dictates of morphology determine the gross procedure to be used. The kind of needle and syringe, the amount of fluid to be administered, and the necessity of optical aids are a function of the size of the insect recipient. …


Assessing Aquatic Insect Flight Behavior With Sticky Traps, T. L. Harris, W. P. Mccafferty Oct 2017

Assessing Aquatic Insect Flight Behavior With Sticky Traps, T. L. Harris, W. P. Mccafferty

The Great Lakes Entomologist

A suspended sticky trap was designed to analyze flight behavior of aquatic insects, including both direction and vertical distribution of flight. Specifications of trap construction are detailed. Possible applications were explored and preliminary results from the study of a small Indiana stream demonstrated primary upstream migration of females, and indicated vertical partitioning of flight activity at the species level.


Notes On The Life History Of Potamanthus Myops In Southeastern Michigan (Ephemeroptera: Potamanthidae), Philip G. Bartholomae, Peter G. Meier Oct 2017

Notes On The Life History Of Potamanthus Myops In Southeastern Michigan (Ephemeroptera: Potamanthidae), Philip G. Bartholomae, Peter G. Meier

The Great Lakes Entomologist

Naiads of the mayfly Potamanthus myops were collected six times over a one year period from the Huron River to obtain some information on their natural history. Contrary to other Ephemeroidea, myops was never collected below the substrate surface, but was usually found on the underside of stones. The immature mayflies were measured and their length plotted for each collection period. The results support the hypothesis that the majority of myops requires two years to mature.


A Checklist Of The Stoneflies, Or Plecoptera, Of Indiana, Andrew F. Bednarik, W. P. Mccafferty Oct 2017

A Checklist Of The Stoneflies, Or Plecoptera, Of Indiana, Andrew F. Bednarik, W. P. Mccafferty

The Great Lakes Entomologist

Examination of specimens and published records has indicated the presence of 61 species of Plecoptera in Indiana. Annotations include the recognition of another 14 species which should eventually be taken within the state, references to species keys and descriptions, and comments concerning doubtfully recorded species.


An Annotated List Of Phytophagous Insects Collected On Immature Black Walnut Trees In Southern Illinois, P. L. Nixon, J. E. Mcpherson Oct 2017

An Annotated List Of Phytophagous Insects Collected On Immature Black Walnut Trees In Southern Illinois, P. L. Nixon, J. E. Mcpherson

The Great Lakes Entomologist

An annotated list of phytophagous insects on immature black walnut in southern Illinois was compiled between 26 April, 1974, and 9 October, 1975. Approximately 300 species, in 10 orders, were collected by hand-picking and sweeping. Notes taken on the various species included types of feeding damage, instars present, predators and parasites, and distribution in southern Illinois. Lepidoptera (about 80 species collected) were responsible for the majority of damage observed.


Preliminary Test Of Prescribed Burning For Control Of Maple Leaf Cutter (Lepidoptera: Incurvariidae), G. A. Simmons, J. Mahar, M. K. Kennedy, J. Ball Oct 2017

Preliminary Test Of Prescribed Burning For Control Of Maple Leaf Cutter (Lepidoptera: Incurvariidae), G. A. Simmons, J. Mahar, M. K. Kennedy, J. Ball

The Great Lakes Entomologist

Leaf litter burning in the spring resulted in 87.5% mortality of maple leaf cutter pupae, Paraclemensia acerifoliella (Fitch). No apparent damage was observed on sugar maple or beech trees within the burn area.