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The Return Of Hexagenia (Ephemeroptera: Ephemeridae) To The Lower Fox River, Wisconsin, Phillip A. Cochran

The Great Lakes Entomologist

Burrowing mayflies (Hexagenia bilineata) were collected in 1991 in the vicinity of the DePere dam on the Fox River, Brown County, Wisconsin. Because Hexagenia mayflies are indicators of good water quality, their emergence from the Fox River is evidence of improvement in conditions at the sediment-water interface.

New Larval Descriptions And Comparisons Of North American Choroterpes (Ephemeroptera: Leptophlebiidae), W. P. Mccafferty

The Great Lakes Entomologist

Formal descriptions of larvae of the western North American species Choroterpes albiannulata and the eastern North American species Choroterpes fusca (Ephemeroptera: Leptophlebiidae) are given for the first time. Specimens, including reared adult and larval associations, of C. albiannulata were available from Nevada, Oregon, and Idaho, and rearings of C. fusca were made from the Huron Mountains in the Upper Peninsula of Michigan. Six of the nine species of North American Choroterpes (subgenus Choroterpes) are now known as larvae. Larval characteristics are compared, particularly with regard to similarities and differences between C. albiannulata and C. fusca, c. albiannulata and the …

Dytiscidae And Noteridae Of Wisconsin (Coleoptera). I. Introduction, Key To Genera Of Adults, And Distribution, Habitat, Life Cycle, And Identification Of Species Of Agabetinae, Laccophilinae And Noteridae, William L. Hilsenhoff

The Great Lakes Entomologist

Collected from Wisconsin were 83,710 adult and 5,600 larval Dytiscidae representing 148 species, and 95 adult Noteridae representing two species. A key to genera is presented, which includes names of species in genera that are monotypic in WIsconsin. Information on distribution and abundance in Wisconsin, range, habitat, life cycles, and identification are included for species in the dytiscid subfamilies Agabetinae and Laccophilinae, and the family Noteridae. Also included are keys to species of adult and larval Laccophilus found in Wisconsin.

Influence Of Tree Species On Frequency Of Trap-Nest Use By Passaloecus Species (Hymenoptera: Sphecidae), John M. Fricke

The Great Lakes Entomologist

Habitat selection by Passaloecus spp. based upon tree species used as stations for artificial nesting sites were studied. Data suggest that Passaloecus areolatus preferred Juglans and that P. cuspidatus preferred Pinus.

Hoplistoscelis Sordidus (Heteroptera: Nabidae) In Canada, M. C. Lariviere

The Great Lakes Entomologist

Hoplistoscelis sordidus is recorded for the first time from Canada. The distribution of the species, its establishment in Canada, and its bionomics are discussed. Characters are given that distinguish Hoplistoscelis from all other eastern Canadian genera of Nabinae. The potential role of the genus as a biological control agent is also briefly outlined.

The Odonata Of Isle Royale, Michigan, Josh Van Buskirk

The Great Lakes Entomologist

This paper presents a list of the Odonata recorded from Isle Royale National Park, located in northwestern Lake Superior. Collections from Isle Royale include 38 species of Anisoptera and 12 species of Zygoptera. The list is typical of the boreal regions of North America, and includes nine new records for Isle Royale and one new record for the state of Michigan.

Observations On The Nesting Of Crabro Tenuis (Hymenoptera: Sphecidae), Frank E. Kurczewski, Richard C. Miller

The Great Lakes Entomologist

Three nests of Crabro tenuis were studied during June 1971-1972 in Oswego County, New York. Females constructed shallow but lengthy, multicelled nests in sand with the cells being built in clusters, sometimes in series. Females plugged the entrances with damp sand and occupied the burrows during midday. Paralyzed prey were stored head inward at the end of the burrow. The deeper cells in a cluster were excavated and provisioned first and the shallower cells built and stored later, as determined by the developmental stages of the wasps within the cells. From four to seven paralyzed, adult male flies were placed …

The Assassin Bugs Of Michigan (Heteroptera: Reduviidae), J. E. Mcpherson

The Great Lakes Entomologist

Assassin bugs collected in Michigan and housed in the University of Michigan Museum of Zoology and the Michigan State University Entomology. Museum were used to compile a list of the state's species and subspecies. A total of 27 was found; an additional species, Empicoris parshleyi, was represented by a single specimen housed in the American Museum of Natural History. Eighteen of the 28 taxa represented new records for the state.

Aphidophagous Coccinellids In Alfalfa, Small Grains, And Maize In Eastern South Dakota, R. W. Kieckhefer, N. C. Elliott, D. A. Beck

The Great Lakes Entomologist

In a 13-year study of aphidophagous coccinellids associated with alfalfa (Medicago sativa), maize (Zea mays), and small grain crops in eastern South Dakota, the following species were consistently associated with the crops: Hippodamia convergens, H. tredecimpunctata tibialis, H. parenthesis, Coleomegilla maculata lengi, Coccinella transversoguttata richardsoni, Cycloneda munda, and Adalia bipunctata. All species except A. bipunctata were associated with each of the three crops, while A. bipunctata occurred only in maize. Relative abundances of each species varied among crops and among years. Although only seven species were associated with the crops, additional species were captured on …

Morphological Differentiation Between Aphis Spiraecola And Aphis Pomi (Homoptera: Aphididae), Susan E. Halbert, David J. Voegtlin

The Great Lakes Entomologist

Aphis pomi and Aphis spiraecola, are both found on agriculturally important hosts such as apple and pear, and in trap collections. Their morphological similarity makes identification difficult. Examination of specimens of both species fom a wide geographical range demonstrated that available keys, especially those based on European material, were not always accurate for North American specimens. Data taken from North American specimens is presented and a key is provided to aid in the identification of trapped alatae preserved in alcohol as well as slide mounted alatae and apterae of these two species.

Effect Of Temperature On Development Rate And Survival Of Nomophila Nearctica (Lepidoptera: Pyralidae), Fredric D. Miller Jr., Joseph V. Maddox

The Great Lakes Entomologist

Development of Nomophila nearctica was studied under six constant tempera- tures in controlled temperature cabinets. Developmental threshold temperatures for egg, larval, and prepupal-pupal stages were 8.9, 1l.5, and 9.2°C. The overall mean developmental threshold temperature for all stages was 9.9°C. Degree-day summa- tions, based on the above threshold temperatures, averaged 50, 304, and 181 DD for the egg, larval, and prepupal-pupal stages, respectively. Total heat units of 535 DD are required for development from oviposition to adult emergence. Head capsule measurements indicated six larval instars.

The Parasitoid Complex Of Forest Tent Caterpillar, Malacosoma Disstria (Lepidoptera: Lasiocampidae), In Eastern Wyoming Shelterbelts, G. A. Knight, R. J. Lavigne, M. G. Pogue

The Great Lakes Entomologist

A parasitoid complex affecting the forest tent caterpillar, Malacosoma disstria, was investigated during 1978-79 in shelterbelts in eastern Wyoming. Egg parasitoids included five species: Ablerus clisiocampae, Ooencyrtus clisiocampae, Telenomus clisiocampae, Tetrastichus sp. 1 and Telenomus sp. Thirteen hymenopterous species and five dipterous species were reared from larvae and pupae of the forest tent caterpillar. The most common 5th-instar larval parasitoids were the tachinid flies, Lespesia archippivora and Archytas lateralis. Of the pupal parasitoids reared, 640/0 were Diptera and 36% were Hymenoptera. Four previously unrecorded parasitoids of M. disstria were reared: Cotesia alalantae, Macrocentrus irridescens, Pimpla sanguinipes erythropus, …

Range Extensions For Species Of Sphecidae (Hymenoptera) In The Northeastern United States, Frank E. Kurczewski, Richard C. Miller

The Great Lakes Entomologist

The ranges of 10 Nearctic species of Sphecidae, Spilomena pusilla, Tachytes parvus, Solierella plenoculoides, Pison agile, Entomognathus lenapeorum, Rhopalum clavipes, Crabro hilaris, C. tenuis, Alysson conicus and Lestiphorus cockerelli, are extended in the northeastern U.S. based upon collections made in Pennsylvania and New York. The first prey record for a North American species of Lestiphorus, cockerelli, is included.

Differential Suitability Of 12 Great Lakes Tree Species For Papilio Canadensis (Lepidoptera: Papilionidae) Larval Survival And Growth, J. Mark Scriber

The Great Lakes Entomologist

Differential nutritional suitabilities of the 12 potential host plants of Papilio canadensis in the Great Lakes region of North America were determined with gravimetric techniques for penultimate and final larval instars. While leaf water content and leaf nitrogen content explain some of the variation, allelochemicals in different plants are likely to be involved in differential larval growth performances as well as mortal- ity of neonate larvae on tuliptree and spicebush. Oviposition tests using 3-choice arenas with quaking aspen, paper birch, and balsam poplar showed no strong host preferences. Factors affecting patterns of Papilio host use in the Great Lakes region …

Effects Of Soil Moisture On The Pupation Behavior Of Altica Subplicata (Coleoptera: Chrysomelidae), Kathleen M. Rickelmann, Catherine E. Bach

The Great Lakes Entomologist

The effects of soil moisture on the pupation behavior of a willow flea beetle, Attica subplicata, were studied with two laboratory experiments. To test the effect of soil moisture on the number of larvae pupating and pupal survival, we set up pupation chambers filled with sand with three different soil moistures: dry, moist, and wet. The number of larvae pupating was much greater in the moist sand and wet sand treatments than in the dry sand treatment. Pupal survival, as measured by the proportion of adults successfully emerging, was greater in the moist treatment than in the wet or …

New Lepidoptera-Parasitoid Associations In Weedy Corn Plantings: A Potential Alternate Host For Ostrinia Nubilalis (Lepidoptera: Pyralidae) Parasitoids, Daniel M. Pavuk, Benjamin R. Stinner

The Great Lakes Entomologist

Larvae of the common sooty wing, Pholisora catullus, and pupae of the yellow-collared scape moth, Cisseps Fulvicollis, were collected in corn plantings containing different manipulated, indigenous weed communities to determine if these Lepidoptera had parasitoid species in common with the European corn borer, Ostrinia nubilalis. Pholisora catullus larvae were collected from lambsquarter, Chenopodium album, and redroot pigweed, Amaranthus retroflexus, whereas pupae of C. Julvicollis were obtained from corn. Four parasitoid species were reared from P. catulIus: Cotesia pholisorae, Oncophanes americanu (Hymenoptera: Braconidae), Gambrus ultimus, and Sinophorus albipalpus (Hymenoptera: Ichneumonidae). Of these, O. americanus and …

Host Plants And Habitats Of The Baltimore Checkerspot Butterfly, Euphydryas Phaeton (Lepidoptera: Nymphalidae), In The Great Lakes Region, Brian G. Scholtens

The Great Lakes Entomologist

The habitats and host plants of Euphydryas phaeton in the Great Lakes region are examined using data from several different populations spread over much of the region. The range of habitats and host plants used by this species is wider than commonly believed. While many populations are found in seasonal or permanent wetlands, others are located in dry, old fields or woodland areas. The host plants used vary with habitat, but they include all major primary hosts and many secondary hosts previously reported plus several new records. The biology of E. phaeton is shown to be similar to western Euphydryas …

Burrow Construction From The Ground Surface In Lyroda Subita (Hymenoptera: Sphecidae), Frank E. Kurczewski

The Great Lakes Entomologist

Plasticity in the nesting behavior of Lyroda subita, a species that renovates and then uses pre-existing burrows and other subterranean cavities for nesting sites, is illustrated by one female which apparently excavated her burrow from the ground surface. Details of burrow construction are described. Information on nest structure and dimensions and cell contents is presented.

Moths Of The Douglas Lake Region (Emmet And Cheboygan Counties), Michigan: Iv. Geometridae (Lepidoptera), Edward G. Voss

The Great Lakes Entomologist

An account, with known flight periods indicated, of 165 species of Geometridae concludes listing of the "macrolepidoptera" from the northern tip of the Lower Peninsula of Michigan. About 44OJo of these are previously unreported for the region, and 12 species are previously unreported for Michigan in earlier lists for the state.

Auplopus Carbonarius,, A Palearctic Spider Wasp, Extends Its Range To Michigan (Hymenoptera: Pompilidae), Frank E. Kurczewski, Mark O'Brien

The Great Lakes Entomologist

Three females of Auplopus carbonarius, a Palearctic species detected recently in southeastern New York, were collected in a Malaise trap in Ann Arbor, Michigan, during the summer of 1988. Females of the species can be separated morphologically from those of the similar A. variolarum by the polished and essentially impunctate pygidium, dusky wings, and median clypeal tooth.

New Michigan State Record For A Sphecine Wasp, Podium Rufipes (Hymenoptera: Sphecidae), David P. Cowan

The Great Lakes Entomologist

Podium rufipes, previously unrecorded from Michigan, has been found occupy- ing trap nests in the southwestern lower peninsula.

First Report Of Allonemobius Griseus And Psinidia Fenestralis In Ohio (Orthoptera: Gryllidae And Acrididae), Harvey E. Ballard Jr.

The Great Lakes Entomologist

Occurrences of Allonemobius griseus and Psinidia fenestralis in Ohio are pub- lished for the first time. Apparent restriction of these species to the sand deposits of northwestern Ohio, their localized distribution in scattered, non-contiguous blow- outs, and habitat loss presently occurring from residential and commercial development nearby, are justifications provided for the formal state listing and conservation of these Orthoptera in Ohio.

Toxic Phenolic Glycosides From Populus: Physiological Adaptations Of The Western North American Tiger Swallowtail Butterfly, Papilio Rutulus (Lepidoptera: Papilionidae), J. Mark Scriber, Richard L. Lindroth, James K. Nitao

The Great Lakes Entomologist

The phenolic glycosides tremulacin and salicortin found in quaking aspen, Populus tremuloides, and other members of the Salicaceae, are known to be toxic to larvae of the Eastern tiger swallowtail butterfly, Papilio glaucus, but not to the Canadian tiger swallowtail, P. canadensis. Larvae of the western tiger swallowtail, P. rutulus, were not killed nor were their growth rates suppressed when fed a mixture of tremulacin and salicortin on black cherry leaves. When the Salicaceae adapted P. rutulus penultimate instar larvae were fed a combination of the two phenolic glycosides and the esterase inhibitor (DEF S,S,S-tributylphosphorotrithioate), growth …

Screen Barriers For Reducing Interplot Movement Of Three Adult Plant Bug (Hemiptera: Miridae) Species In Small Plot Experiments, Mark S. Wipfli, John L. Wedberg, David B. Hogg

The Great Lakes Entomologist

Fiberglass screen barriers 1.2 m high were erected around small (7.3 x 3.7 m) plots of birdsfoot trefoil, Lotus corniculatus, to study the effectiveness of screen barriers in reducing adult plant bug migration into small field plots. Screened and unscreened (control) plots were sprayed with an insecticide at the onset of the experiment, and subsequent adult mirid migration into these trefoil plots was measured by sweep net samples during the following 24 day period. Combined adult Adelphocoris lineolatus, Lygus lineolaris, and Plagiognathus chrysanthemi densities were significantly lower in screened versus unscreened plots with 37070, 28010, and 23070 fewer adults …

A Descriptive Study Of The Population Dynamics Of Adult Diabrotica Virgifera Virgifera (Coleoptera: Chrysomelidae) In Artificially Infested Corn Fields, N. C. Elliott, J. J. Jackson, G. R. Sutter, D. A. Beck

The Great Lakes Entomologist

The influence of corn plant phenology on the dynamics of adult western corn rootworm, Diabrotica virgifera virgifera, populations was studied during 1988 and 1989 in com fields artificially infested with eggs. Fifty percent of adult emergence from the soil occurred by day 194 in 1988 and day 203 in 1989. In both years, adult emergence was synchronized with corn flowering, eggs were recovered in soil samples approximately four days after reproductive females were first observed in the population, and oviposition was essentially complete about 25 days after it began. The number of reproductive female beetle-days accumulating per m2 was …

Eastern Pine Seedworm, Cydia Toreuta (Lepidoptera: Tortricidae) In Red Pine Cones In Wisconsin, S. A. Katovich, H. M. Kulman

The Great Lakes Entomologist

Cydia toreuta population densities, prolonged diapause behavior, parasitism and adult emergence patterns were examined over four years at two red pine locations in Wisconsin. Last-instar densities ranged from 0.54 to 3.18 per cone. This was considered a wide range for this species in red pine. Population clumping was evident at last-instar densities below 2.90, however no consistent pattern was evident between years. Clumping disappeared at populations greater than 2.90 last-instars. Prolonged diapause varied from 7.8 to 38.9070. Parasitism rates var­ ied from 10.9 to 46.6 %. Phanerotoma toreuta (Hymenoptera: Braconidae) was the most abundant parasite at both sites and emerged …

Influence Of Strip-Mining On The Mortality Of A Wetland Caddisfly, Limnephilus Indivisus (Trichoptera: Limnephilidae)., J. D. Usis, B. A. Foote

The Great Lakes Entomologist

A coal mine about 2.2 km upstream from Stillfork Swamp Nature Preserve, Carroll Co., Ohio was suspected of causing a reduction in Limnephilus indivisus caddisflies in the south half of the preserve. Second instar L. indivisus larvae collected from the south half of the preserve and from two control areas were reared in cages at the site of collection and at the other two sites in a replicated experiment. Elevated total dissolved solids in water samples from within rearing enclosures displayed strong correlation (r2 = 0.864) with increased mortality when compared to larvae reared in unaffected areas. This investigation suggests …

Trap-Nest Bore Diameter Preferences Among Sympatric Passaloecus Spp. (Hymenoptera: Sphecidae), John M. Fricke

The Great Lakes Entomologist

Five species of Passaloecus used trap-nests in a study area in southern Michigan. Significant differences in trap-nest bore diameter selection were noted among P. annulatus, P. areolatus, P. cuspidatus, and P. monilicornis. P. annulatus and P. areolatus selected bore diameters 1.6 to 2.4 mm, P. cuspidatus used bore diameters of 2.0 to 6.4 mm, and P. monilicornis selected diameters of 1.6 to 3.6 mm.

Trap-Nest Design For Small Trap-Nesting Hymenoptera, John M. Fricke

The Great Lakes Entomologist

(excerpt)

Many solitary bees and wasps construct brood cells in pre-existing natural cavities such as beetle borings or in excavations of pithy stems and twigs like Sambucus and Juglans. Artificial nesting materials are also acceptable and provide a convenient approach to study nest architecture, nesting activity, provisions and parasites. Arti- ficial nesting materials have included bamboo, glass tubes, plastic straws, cuttings of twigs and stems, and trap-nests. However, use of many of these materials have significant drawbacks.

An Array Of Spatulate Sensilla On Antennae Of Male Brachymeria Lasus (Hymenoptera: Chalcididae), D. H. Simser, H. C. Coppel

The Great Lakes Entomologist

An array of spatulate sensilla on the ventral flagellar surface of each antenna of male Brachymeria lasus occurs only on segments IV-VII and is absent on female antennae. Most such sensilla are on segment VI. Each spatulate sensillum was 15 p, by 16.7 p with a stalk extending 17 p, from the antennal base. Pores were not apparent, but the sensillum surface was imbricated. The sensilla are speculated to have a role in the courtship sequence of this chalcid by functioning both as chemoreceptors of the female-produced sex pheromone and as mechanoreceptors to indicate female receptivity, as female B. lasus …