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Articles 1231 - 1260 of 1578
Full-Text Articles in Entomology
Social Parasitism Among Ants At The E.S. George Reserve In Southern Michigan, Mary Talbot
Social Parasitism Among Ants At The E.S. George Reserve In Southern Michigan, Mary Talbot
The Great Lakes Entomologist
(excerpt)
A mode of life in which one species spends all or part of its existence in close contact with, and at the expense of, another species is rather common among ants. Sudd (1%7) stated that about one sixth of all known European species are parasitic to some extent. At the Edwin S. George Reserve in Livingston County, Michigan, 28.7% (25 of the 87 species) fall into the category of forms considered to be in some way parasitic on other ants.
Persistence Of Jack Pine Budworm Choristoneura Pinus Pinus, (Lepidoptera: Tortricidae) Egg Mass Chorions On Jack Pine Foliage, Harold O. Batzer, Daniel T. Jennings
Persistence Of Jack Pine Budworm Choristoneura Pinus Pinus, (Lepidoptera: Tortricidae) Egg Mass Chorions On Jack Pine Foliage, Harold O. Batzer, Daniel T. Jennings
The Great Lakes Entomologist
More than one-fifth of old and nearly one-half of new jack pine budworm egg mass chorions remained on the foliage after one year, and an experienced observer could not determine accurately the age of one-fourth of them. Counts of new egg masses are used to estimate current populations, and large errors could result.
Effects Of Various Photoperiods On Color And Pubescence In Thyanta Pallidovirens Accerra (Hemiptera: Pentatomidae), J. E. Mcpherson
Effects Of Various Photoperiods On Color And Pubescence In Thyanta Pallidovirens Accerra (Hemiptera: Pentatomidae), J. E. Mcpherson
The Great Lakes Entomologist
The effects of a range of developmental photoperiods on adult dimorphism in Thyanta pallidovirens accerra were studied under laboratory conditions. Adults reared in photo- phases of 14L and higher had short pubescence and those in 12L and lower, long pu- bescence. No dimorphism in color was produced in these same photophases.
Effects Of Continuous And Split Developmental Photophases During Each 24 Hour Period On Adult Morphology In Euschistus Tristigmus Tristigmus (Hemiptera: Pentatomidae), J. E. Mcpherson
The Great Lakes Entomologist
Rearing immatures of Euschistus tristigmus tristigmus in 8L:16D, 8L: 4D:8L;4D, and 16L:8D showed that the length of each photophase, rather than an accumulated total of shorter photophases, during each 24 hr period was the determining factor in producing adult dimorphism in shoulder shape and number of midventral abdominal spots.
Evaluation Of Two Systems Used To Extract Alfalfa Weevil Larvae (Coleoptera: Curculionidae) From Alfalfa Samples, S. J. Roberts, D. P. Bartell, E. J. Armbrust
Evaluation Of Two Systems Used To Extract Alfalfa Weevil Larvae (Coleoptera: Curculionidae) From Alfalfa Samples, S. J. Roberts, D. P. Bartell, E. J. Armbrust
The Great Lakes Entomologist
A modified Berlese funnel system was developed to extract alfalfa weevil larvae (Hypera postica) from quadrats 30.5 cm on a side. Data from this system were comp.wed with simultaneous data from a hand sorting extraction system. In most instances, the modified Berlese system was as efficient as the hand sorting method and the number of man hours required to process samples by hand was far greater than that required by the Berlese system.
Effect On Constant Versus Fluctuating Temperature Regimes On Bathyplectes Curculionis (Hymenoptera: Ichneumonidae) Activity, Robert J. Barney, E. J. Armbrust, R. D. Pausch, S. J. Roberts
Effect On Constant Versus Fluctuating Temperature Regimes On Bathyplectes Curculionis (Hymenoptera: Ichneumonidae) Activity, Robert J. Barney, E. J. Armbrust, R. D. Pausch, S. J. Roberts
The Great Lakes Entomologist
Individual female Bathyplectes curculionis parasites were exposed to either a series of constant or fluctuating temperature regimes and supplied with a new group of host Hypera postica larvae every day. The fluctuating temperatures were calculated from an average of weekly air temperatures during a period of actual field oviposition by the parasite. The rearing of adult parasites under a constant versus fluctuating temperature regime resulted in no significant difference in parasitism, longevity, or fecundity. The threshold for B. curculionis activity was estimated to be 6-8°C.
Biology Of The Hyperparasitic Wasp Perilampus Similis (Hymenoptera: Perilampidae), Foster Forbes Purrington
Biology Of The Hyperparasitic Wasp Perilampus Similis (Hymenoptera: Perilampidae), Foster Forbes Purrington
The Great Lakes Entomologist
Planidia of the hyperparasitic wasp, Perilarnpris similis Crawford, enter their braconid host, Agathis rnetzneriae Muesebeck, during that host's active growth phase, returning to the outer surface when the host is prepupal. Second instar perilampids search for and destroy conspecific larvae on the surface of the braconid prepupae, thus eliminating super- parasitism. Planidia in primary hosts, Metzneria lappella Zeller moth larvae in burdock seeds, unparasitized by the braconid persist without further development through pupation and occur in various tissues of the adult moth.
Effects Of Salmon Spawning Activity On Macroinvertebrates In A Small Michigan Stream, Douglas L. Denison, Peter G. Meier
Effects Of Salmon Spawning Activity On Macroinvertebrates In A Small Michigan Stream, Douglas L. Denison, Peter G. Meier
The Great Lakes Entomologist
Density and composition of macroinvertebrate populations were examined prior to and during the migration and spawning of coho and chinook salmon in a small stream in Michigan. Data gathered from bottom samples indicated that disruption of substrate in the experimental area resulted in a significant decrease in the numbers and species of the macroinvertebrate community. This reduction of invertebrates can create a severe stress on native trout populations.
Additions To The Checklist Of The Illinois Spiders, J. A. Beatty, J. M. Nelson
Additions To The Checklist Of The Illinois Spiders, J. A. Beatty, J. M. Nelson
The Great Lakes Entomologist
Five families and 140 species of spiders not included in former Illinois checklists are recorded. Two of these families, Antrodiaetidae and Scytodidae, and 40 of the species have been cited in earlier revisionary or other literature. The families Oonopidae, Symphytognathidae (slat.) and Ctenidae, and the remaining 100 species of spiders are recorded from Illinois for the first time. Locality data are given as counties only, and months of capture of mature specimens are presented. The total known spider fauna of Illinois now stands at 500 species in 27 families.
An Outbreak Of The Saddled Prominent Caterpillar, Heteocampa Guttivitta (Lepidoptera: Notodontidae) On Beaver Island, Michigan, Alice Loesch, Jeffry Foran
An Outbreak Of The Saddled Prominent Caterpillar, Heteocampa Guttivitta (Lepidoptera: Notodontidae) On Beaver Island, Michigan, Alice Loesch, Jeffry Foran
The Great Lakes Entomologist
(excerpt)
In 1975 and 1976 an outbreak of the saddled prominent caterpillar, Heterocarnpa guttivitta (Walker) was observed in Beech-Maple climax forests on Beaver Island, Michigan. The adult guttivitta moths emerge in late May and early June, mate, and lay small (1 mm) eggs on the underside of leaves. One female lays about 500 of the green spheres. In 9-10 days the eggs hatch, and the larvae go through characteristic changes in form and markings through the following five instars (Allen, 1972).
Diagnoses, Distribution, And Comparative Life History Notes On Aaroniella Maculosa (Aaron) And A. Eertmoedi N.Sp. (Psocoptera: Philotarsidae), Edward L. Mockford
Diagnoses, Distribution, And Comparative Life History Notes On Aaroniella Maculosa (Aaron) And A. Eertmoedi N.Sp. (Psocoptera: Philotarsidae), Edward L. Mockford
The Great Lakes Entomologist
Two species formerly confused under the name Aaroniella maculosa (Aaron) are separated in all life history stages. Application of the name maculosa was determined by examination of the type. The other species is new and is named (A. eertmoedi) and described. It is parthenogenetic, apparently with no males. The ranges of the two species are largely distinct but show some overlap.
Observations Of The Habits Of Lygaeus Kalmii Angustomarginatus (Hemiptera: Lygaeidae) In Southern Michigan, Linda-Margaret Hunt
Observations Of The Habits Of Lygaeus Kalmii Angustomarginatus (Hemiptera: Lygaeidae) In Southern Michigan, Linda-Margaret Hunt
The Great Lakes Entomologist
Lygaeus kalmii Stal (Hemiptera: Lygaeidae) is an insect found throughout the eastern United States and Canada. There is extensive taxonomic literature on this insect (Stil, 1874; Townsend, 1887; Parshey, 1919, 1923; Slater and Knopf, 1969), but very little attention has been given to the rest of its biology. This study describes the habits of kalmii populations in southern Michigan.
Additions And Corrections To The List Of Michigan Pentatomoidea (Hemiptera), J. E. Mcpherson
Additions And Corrections To The List Of Michigan Pentatomoidea (Hemiptera), J. E. Mcpherson
The Great Lakes Entomologist
Six new species are added to the 1970 list of Michigan Pentatomoidea, and two are deleted.
Effects Of Various Photoperiods On Morphology In Euschistus Tristigmus Tristigmus (Hemiptera: Pentatomidae), J. E. Mcpherson
Effects Of Various Photoperiods On Morphology In Euschistus Tristigmus Tristigmus (Hemiptera: Pentatomidae), J. E. Mcpherson
The Great Lakes Entomologist
Rearing immatures of Euschistus tristigmus tristigmus in a range of photoperiods showed that a threshold photoperiod is involved in the adult dimorphic response (shoulder shape and number of midventral abdominal spots) with the mean threshold probably near 14.5L:9.5D (light: dark). This threshold is consistent with the seasonal distribution of the adult morphs.
Susceptibility And Injury Of Some Hybrid Walnuts By The Butternut Curculio (Coleoptera: Curculionidae), Louis F. Wilson, Jeffrey A. Corneil, Walter A. Lemmien
Susceptibility And Injury Of Some Hybrid Walnuts By The Butternut Curculio (Coleoptera: Curculionidae), Louis F. Wilson, Jeffrey A. Corneil, Walter A. Lemmien
The Great Lakes Entomologist
The butternut curculio, Conotrachelus juglandis LeConte (Coleoptera: Curculionidae), injures the shoots and nuts of various species and hybrids of Juglans in eastern North America. This insect was described in 1876 (LeConte, 1876); its life history has been studied in Connecticut (Britton and Kirk, 1912) and in West Virginia (Brooks, 1922). Its range, however, extends from the New England states through southern Canada to the Great Plains and south to Kansas, Alabama, and Georgia, contiguous with the natural range of butternut (J. cinerea), its native host.
Life History Of The Butternut Curculio, Conotrachelus Juglandis (Coleoptera: Curculionidae), In Michigan, Jeffrey A. Corneil, Louis F. Wilson
Life History Of The Butternut Curculio, Conotrachelus Juglandis (Coleoptera: Curculionidae), In Michigan, Jeffrey A. Corneil, Louis F. Wilson
The Great Lakes Entomologist
(excerpt)
The butternut curculio, Conotrachelus juglandis LeConte (Coleoptera: Curculionidae), injures the shoots and nuts of various species and hybrids of Juglans in eastern North America This insect was described in 1876 (LeConte, 1876); its life history has been studied in Connecticut (Britton and Kirk, 1912) and in West Virginia (Brooks, 1922). Its range, however, extends from the New England states through southern Canada to the Great Plains and south to Kansas, Alabama, and Georgia, contiguous with the natural range of butternut (J. cinema), its native host.
New World Limnichinae Iv. Eulimnichus Casey. B. Descriptions Of New Species (Coleoptera: Limnichidae), David P. Wooldridge
New World Limnichinae Iv. Eulimnichus Casey. B. Descriptions Of New Species (Coleoptera: Limnichidae), David P. Wooldridge
The Great Lakes Entomologist
Thirteen new species of Eulimnichus are described: Eulimnichus visendus, corrinae, langleyae, coheni, improcerus, pellucidus, sharpi, incultus, rugulosus, nrsticus, acutus, subitus, and spangleri. A key to the 27 known species is included.
Two Observations Of Predation On Lepidoptera, Irwin Leeuw
Two Observations Of Predation On Lepidoptera, Irwin Leeuw
The Great Lakes Entomologist
(excerpt)
During the early afternoon of 25 August, 1977, a large European mantid, Mantis religiosa Linnaeus, was observed feeding on an adult male monarch butterfly, Donaus p. plexippus Linnaeus (Danaidae) while clinging to the flower head of a blazing star plant (Liatris sp.) on a cactus prairie at the Allegan State Game Area, Allegan County, Michigan.
Collecting Neocurtilla Hexadactyla, The Northern Mole Cricket (Orthoptera: Gryllidae), In Iowa, J. R. Dewitt
Collecting Neocurtilla Hexadactyla, The Northern Mole Cricket (Orthoptera: Gryllidae), In Iowa, J. R. Dewitt
The Great Lakes Entomologist
(excerpt)
The northern mole cricket, Neocurtilla hexadactyla (Perty), is a common insect that is infrequently collected perhaps owing to its burrowing and nocturnal habits. It tunnels into moist soil and feeds on tender roots, earthworms, or various insect larvae (Blatchley, 1920).
Notes On Mayfly Nymphs From Northeastern Minnesota Which Key To Stenonema Vicarium (Ephemeroptera: Heptageniidae), Thomas M. Lager, Philip A. Lewis
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
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
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
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
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
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 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 …
Behavior At A Nesting Site And Prey Of Crabro Cribrellifer (Hymenoptera: Sphecidae), Edward M. Barrows, Patricia L. Lebau, Cathlyn E. Eckstein
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
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
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
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.