Entomology Commons^™

The Recently-Described Ant-Like Leaf Beetle Elonus Gruberi (Coleoptera: Aderidae) In Michigan, Daniel R. Swanson

The Great Lakes Entomologist

The ant-like leaf beetle Elonus gruberi Gompel, 2017 (Coleoptera: Aderidae) is reported for the first time in Michigan. This new state record, initially based on two recent collections by the author and then supplemented with additional material in a Michigan entomological collection, highlights how the constituents of faunal lists can require re-appraisal after taxonomic revision, particularly where splitting of species has occurred. The composition of Elonus Casey, 1895 in Michigan as well as characters for identifying E. gruberi also are discussed.

First Records Of Three Carpophilinae (Coleoptera: Nitidulidae) In Quebec, Ludovic Leclerc, Pierrick Bloin, Françoise Pelletier, Christian Hébert, Kishan Sambaraju

The Great Lakes Entomologist

We report first records for three species of Carpophilinae (Coleoptera: Nitidulidae), two for the province of Quebec (Caplothorax lugubris and Carpophilus corticinus), a third species (Carpophilus marginatus) being a first report for Canada. These beetles were trapped while conducting population assessments of oak wilt vectors and in amateur collections. Biological information and a brief description of the records including distribution data in Quebec for the three species are presented.

Four New State Records Of Delphacid Planthopper Species (Hemiptera: Fulgoroidea) From Illinois, Usa, Morgan E. Brown, Christopher H. Dietrich

The Great Lakes Entomologist

Four planthopper species– Aethodelphax aetocephalus (Beamer 1948), Bakerella cinerea Beamer, 1945, Bakerella minuta Beamer, 1950, and Pissonotus aphidioides Van Duzee, 1897 – are newly recorded from Illinois based on collections obtained in the summers of 2005 and 2022. Specimens were collected via net-sweeping and vacuuming of herbaceous vegetation and identified using external morphology and male genitalia morphology. Locality and collection data for each species are summarized; and relevant taxonomic and ecological information for each species is provided. Photographs of pinned specimens and male genital capsules are also provided. These new records reveal apparently disjunct populations of A. aetocephalus and B. …

Periodical Cicadas (Magicicada Spp.): Predator Satiation, Or Too Much Of A Good Thing?, John R. Cooley, Greg Holmes

The Great Lakes Entomologist

We report a novel mode of ecdysis failure in periodical cicadas (Magicicada spp. Davis) tied to the cicadas’ reliance on high densities for survival in the face of predation. Under extremely high densities, cicadas can disrupt others undergoing ecdysis by knocking them loose from their perches, trapping them, or causing physical damage. Our observations raise the possibility that while periodical cicadas thrive at high densities, it is possible that some densities are so high that they inhibit success.

Synopsis Of Biological Control For European Fruit Lecanium (Parthenolecanium Corni) By Parasitoids In North America And Preliminary Findings In Hybrid Hazelnut Orchards, Simone G. Traband, Hailey N. Shanovich, John C. Luhman, Brian Aukema

The Great Lakes Entomologist

The European fruit lecanium, Parthenolecanium corni (Bouché) (Hemiptera: Coccidae) is a native insect to North America that causes significant damage to a large variety of fruit and ornamental trees worldwide. Here we provide a summary of the insect’s worldwide distribution and synopsis of all the Hymenopteran parasitoid wasps found to parasitize P. corni in North America from past literature. Additionally, a preliminary parasitoid survey of P. corni was carried out in two hybrid hazel (Corylus avellana × C. americana) plantings as hazelnuts represent a potential new crop for the region. European fruit lecanium, Parthenolecanium corni (Bouché) (Hemiptera: Coccidae), were collected …

Abundance And Diversity Of Bees Visiting Flowering Pennycress, A New Oilseed Crop In The Midwestern Usa, Frank Forcella, Zachary M. Portman, Samantha S. Wells, William Perry, Russ W. Gesch, Yesuf Mohammed, Cody Hoerning, Alex Hard, Tad L. Wesley, Winthrop B. Phippen

The Great Lakes Entomologist

Oilseed pennycress (Thlaspi arvense) is a new, autumn-sown, “cash cover crop” for the Midwestern USA and elsewhere. Anthesis occurs in early spring when few other plants bloom, and its flowers attract early-emerging bees. However, the taxonomic composition of these bees was unknown. Consequently, we systematically captured and identified the genera and species of bees visiting pennycress flowers throughout anthesis at five site-years: two in Illinois and three in Minnesota. A cumulative total of 28 bee species were found across site-years. The most common genera were Andrena (10 species), Lasioglossum (12 species), and Halictus (2 species). Rarer genera were …

Limoniic Acid Is A Sex Attractant Pheromone Component Of Limonius Agonus (Coleoptera: Elateridae), Wim Van Herk, Regine Gries, Jocelyn Smith, Ian Scott, Gerhard Gries

The Great Lakes Entomologist

Recently, (E)-4-ethyloct-4-enoic acid (limoniic acid) has been reported as the major sex attractant pheromone component of L. canus and L. californicus (Coleoptera: Elateridae) in western North America. Our objective was to determine whether limoniic acid is also a sex attractant pheromone component of the eastern field wireworm, Limonius agonus (Say). In gas chromatographic-electroantennographic detection (GC-EAD) analyses of headspace volatiles from L. agonus females, antennae from male L. agonus responded to limoniic acid as a trace component. In field experiments, traps baited with synthetic limoniic acid, or its analog (E)-5-ethyloct-4-enoic acid, afforded captures of male L. …

Observations On Two Stem-Boring Coleoptera Of Prickly-Ash (Zanthoxylum Americanum) In Michigan: Micracis Suturalis (Curculionidae: Scolytinae) And Sternidius Alpha (Cerambycidae), Robert A. Haack

The Great Lakes Entomologist

The xylophagous scolytine Micracis suturalis LeConte and the cerambycid beetle Sternidius alpha (Say) were reared or collected from trunk sections of prickly-ash, Zanthoxylum americanum Mill., in Ingham County, Michigan during 1986 to 1988. Most M. suturalis gallery systems were initiated by August in host material cut in late May 1987. Micracis suturalis gallery-system density data are presented. No M. suturalis were reared from caged host material one-year after cutting. Sternidius alpha was univoltine, with adults emerging from mid-May to mid-July from host material cut the previous spring. From 1 to 8 S. alpha larvae originated from individual oviposition sites, averaging …

Alderfly (Megaloptera: Sialidae) Larval Emergence And Pupation Site Selection At Intermediate Lake, Antrim County, Michigan, Robert A. Haack

The Great Lakes Entomologist

Larvae of the alderfly Sialis mohri Ross were collected in barrier pitfall traps along the shoreline of Intermediate Lake during a 3-year period (2015–2017). Two barriers (each 1-m long) were used per trap in 2015 and 2016, being placed on opposite sides of a central collection cup that was about 1 m from the shoreline at time of deployment. In 2015, with two traps monitored at 4–to 18-day intervals from 19 April to 29 June, larvae were collected first during the 19 April – 7 May period and last during 16–31 May. In 2016, using the same two trap locations, …

Differences In The Critical Thermal Maximum Between Two Size Classes Of Stenonema Femoratum (Ephemeroptera: Heptageniidae), Jaiden Frantz, David Houghton

The Great Lakes Entomologist

Temperature is an important variable affecting the behavior and survival of aquatic organisms; however, little is known about the effects of size and corresponding developmental differences on aquatic insect temperature tolerance. We tested the critical thermal maximum (CTM) of large (head capsule width mean = 3.5 mm) and small (1.9 mm) specimens of Stenonema femoratum (Say) by raising the experimental temperature by 0.1, 0.3, and 0.5ºC per minute during laboratory CTM trials. Size class and temperature increase rate combinations were randomized, and each combination was tested over four trials, for a total of 24 trials of four specimens each. Two-way …

The Caddisflies (Trichoptera) Of Finch Creek, Antrim County, Michigan (Usa), David Houghton, Robert Haack

The Great Lakes Entomologist

The caddisfly assemblages of Finch Creek, a small woodland stream in northern Lower Michigan, was sampled along its entire continuum during May, June, July, and September 2021–2022 using ultraviolet blacklight traps. A total of 98 species representing 15 families and 49 genera were collected, including two species [Lepidostoma prominens (Banks) and L. sommermanae (Ross)] not previously reported from Michigan, and several others either not previously found in the Lower Peninsula or not reported from the state for >70 years. A non-metric multidimensional scaling ordination determined distinct species assemblages corresponding to the spring, summer, and fall months. Shredders dominated the …

The Caddisflies (Trichoptera) Of Drummond Island, Michigan, With An Assessment Of Lake Assemblage Biomass, David Houghton, Robert Haack

The Great Lakes Entomologist

The adult caddisfly assemblages of Drummond Island, a Michigan island in Lake Huron near the Canadian border, were sampled in 2021–2022 from 3 sites on Lake Huron, 8 inland lakes, 2 vernal pools, and 1 stream. Adult caddisflies from each site were sampled in spring, summer, and autumn using ultraviolet blacklight traps. A total of 89 species representing 37 genera and 12 families was collected, including several not seen in Michigan for 50–70 years and the first confirmation of the rare species Beothukus complicatus (Banks) (Phryganeidae) from the state. A non-metric multidimensional scaling ordination determined distinct species assemblages between lakes, …

New Province Records Of Southern Ontario Caddisflies (Trichoptera), David Houghton, David Etnier

The Great Lakes Entomologist

Thirty-two caddisfly species are reported from Ontario for the first time, including 24 in the family Hydroptilidae, three in the Hydropsychidae, and one each in the Leptoceridae, Limnephilidae, Molannidae, and Polycentropodidae. The known caddisfly richness of the province increases from 309 to 341 species, including a doubling of the known hydroptilid fauna. Many more species undoubtedly remain to be discovered in this large and relatively undisturbed province.

Temporal Changes In Temperature May Suggest Microhabitat Shifts In Larval Spongillafly Climacia Areolaris Hagen (Neuroptera: Sisyridae) Abundance And Density In A Temperate Freshwater Lake, John R. Wallace, M. Eric Benbow, Cindy Willman-Kinsey

The Great Lakes Entomologist

Abiotic factors such as temperature and depth are known to affect aquatic insect populations and are thought to be major variables that directly impact how communities are assembled and populations distributed. The purpose of this study was to examine the role of temperature and depth in structuring C. areolaris populations within a temperate freshwater quarry. Larval densities among individual sponges at different depths were determined over six months in a Pennsylvania quarry. Sponges from four depths (7.0 - 8.0 m; 8.1 - 9.0 m; 9.1 - 10.0 m and 10.1 - 12.0) were collected once per month (n = 3) …

Characterizing Insect Communities Within Thin-Soil Environments, Katherine Mcnamara Manning, Kayla I. Perry, Christie A. Bahlai

The Great Lakes Entomologist

Natural thin-soil environments are those which have little to no soil accumulation atop hard substrates. Many of these natural thin-soil environments, such as alvars, rocky lakeshores or glades, cliffs and cliff bluffs, and barrens, are found in the Great Lakes Region of North America. Due to their ubiquity and ecosystem services they provide, characterizing insects in sensitive environments such as these is important. This study monitored insects in nine thin-soil sites, within three regions, on a 630 km latitudinal gradient in the Southeastern Great Lakes Region of North America from June - August 2019. Over 22,000 insect specimens collected were …

Cover Art For Tgle Vol. 56 Nos. 1 & 2

The Great Lakes Entomologist

Cover Art for TGLE Vol. 56 Nos. 1 & 2

Cover Pages For Tgle Vol. 56 Nos. 1 & 2

The Great Lakes Entomologist

Cover Pages for TGLE Vol. 56 Nos. 1 & 2

Full Issue For Tgle Vol. 56 Nos. 1 & 2

The Great Lakes Entomologist

Full Issue for TGLE Vol. 56 Nos. 1 & 2

Two New Coleopteran Records From Wisconsin, Jordan D. Marche Ii

The Great Lakes Entomologist

Specimens of two different species of beetles, representing that many separate families of Coleoptera, are herein reported as new to Wisconsin. These species occur respectively within the following families: Zopheridae and Trogossitidae.

Preliminary Feeding Assessments For Asiatic Garden Beetle, Maladera Formosae (Coleoptera: Scarabaeidae), Grubs And Adults, Adrian J. Pekarcik, Matthew O. Lorentz, C. Scott Clem, Amy L. Raudenbush, David W. Held, Kelley J. Tilmon

The Great Lakes Entomologist

The Asiatic garden beetle, Maladera formosae (Brenske) (syn. M. castanea [Arrow]), is an annual white grub species that was unintentionally introduced from east Asia to North America in 1921 in New Jersey, and has since spread to at least 25 states and two Canadian provinces. Grub populations in the Great Lakes region have recently emerged as significant early-season pests of field crops, particularly field corn, grown in sandy soils. Asiatic garden beetle has also recently become established in other regions including Alabama. Prior research on this species was conducted mainly in the 1930s in horticultural and turfgrass systems of New …

Annotated Checklist Of The Aradidae (Hemiptera: Heteroptera) Or "Flat Bugs" Of Iowa, Edwin Freese, Stephen W. Chordas

The Great Lakes Entomologist

A review of the species of Aradidae or flat bugs found in Iowa is presented. New state records for Aradus aequalis Say, A. crenatus Say, A. implanus, and Mezira lobata (Say) are included.

Complementary Of Blacklight Trap And Flight Interception Trap In A Multi-Year Study Of Flying Coleoptera Near A Farm Pond In Southern Québec (Canada), Claire Levesque, Gilles-Yvon Levesque

The Great Lakes Entomologist

Abstract

A blacklight trap (LT) and a flight interception trap (FIT) were installed throughout the May-September period during four years (2014-2017), near a farm pond within an orchard at Compton, in southern Québec (Canada). We collected by LT 162,001 adults representing 560 beetle species and morphospecies belonging to 49 families, and using a FIT 10,159 individuals for 468 Coleoptera species belonging to 48 families. We observed a similarity of 9.8% between these two assemblages including 214 common species (26.3% of total of 814 caught taxa). We caught mainly nocturnal Carabidae, Hydrophilidae, Staphylinidae and Dryopidae in the LT, and primarily diurnal …

Seasonal Changes Of Benthic Macroinvertebrate Functional Feeding Group Biomass Within Forest And Meadow Habitats Of A First-Order Michigan (Usa) Stream, David C. Houghton, Erin Flaherty, Danae Sollie, Ryan Lardner

The Great Lakes Entomologist

Little is known about seasonal changes in stream benthic macroinvertebrate assemblages. We determined the ash-free dry mass of macroinvertebrates within a forested and a meadow reach of Fairbanks Creek in northern Lower Michigan throughout all seasons of 2018 and 2019. The macroinvertebrate assemblage of the forested reach was dominated by invertebrates in the shredder functional feeding group (FFG), whereas the meadow reach was composed primarily of scrapers and filtering collectors. Regardless of reach, the biomass of all FFGs was low during the winter and early spring, peaked in May or June, and gradually declined throughout the summer and fall. General …

Insect Floral Visitors Of Red Maple And Tree-Of-Heaven At Potential Risk Of Neonicotinoid Residue Exposure From Spotted Lanternfly Control, Jonathan Elmquist, Kelli Hoover, David Biddinger

The Great Lakes Entomologist

To manage spotted lanternfly (Lycorma delicatula (White)), an invasive planthopper recently introduced to the United States, governmental agencies, homeowners, and landscape professionals may treat its host plants with systemic neonicotinoid insecticides. Neonicotinoids can be harmful to non-target insect floral visitors collecting pollen or nectar. The insect floral visitors of red maple (Acer rubrum L.) or tree-of-heaven (Ailanthus altissima (Mill.), which are two of the preferred hosts of L. delicatula in Pennsylvania, are often targeted with neonicotinoid applications for control of this pest. To identify the floral visitors of these tree species, we conducted observations and collections of …

Cover Art For Tgle Vol. 55 Nos. 3&4

The Great Lakes Entomologist

Cover Art for TGLE Vol. 55 Nos. 3&4

Cover Pages For Tgle Vol. 55 Nos. 3&4

The Great Lakes Entomologist

Cover Pages for TGLE Vol. 55 Nos. 3&4

Full Issue For Tgle Vol. 55 Nos. 3&4

The Great Lakes Entomologist

Full Issue for TGLE Vol. 55 Nos. 3&4