Entomology Commons^™

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

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

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

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

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

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

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

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

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

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

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

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.

Life History And Description Of The Immature Stages Of Macrotheca Unipuncta (Lepidoptera: Pyralidae), James Liebherr

The Great Lakes Entomologist

During the summer of 1975, an unknown larval pyralid was found living under the loose outer back of domestic grape (Vitis vinifera L.) in southwestern Michigan. Subsequent rearing enabled it to be identified as Macrotheca unipuncta Dyar. Following is a description of the larval and pupal stages of the insect, and a discussion of its bionomics.

Disease As A Larval Mortality Factor In Alfalfa Weevil, Hypera Postica (Coleoptera: Curculionidae) Populations In Illinois, S. J. Roberts, J. V. Maddox, D. P. Bartell, E. J. Armbrust

The Great Lakes Entomologist

During the 1974 growing season, larvae of the alfalfa weevil, Hypera postica (Gyllenhal), were examined for pathogens. Three larvae out of 715 examined were infected with a microsporidium. This infection was present in both Washington and Mason counties in Illinois.

Influences Of Host Density, Temperature, And Parasite Age On The Reproductive Potential Of Bathyplectes Curculionis (Hymenoptera: Ichneumonidae), An Endoparasite Of The Alfalfa Weevil (Coleoptera: Curculionidae), Robert J. Barney, Daniel P. Bartell, W. G. Ruesink

The Great Lakes Entomologist

Alfalfa weevil larvae were exposed to Bathyplectes curculionis (Thomson) to determine the effect of host density, temperature, and parasite age on the reproductive potential of curculionis. Percent parasitism was found to be inversely proportional to host density and most of the parasites distributed their eggs randomly regardless of host density. The number of eggs deposited was largely independent of temperature. Peak egg laying was reached in three days from which point the parasite's capabilities diminished with increasing age. The longevity of ovipositing females was shorter than females that were not exposed to larvae.

New World Limnichinae Iii. A Revision Of Limnichites Casey (Coleoptera: Limnichidae), David P. Wooldridge

The Great Lakes Entomologist

A diagnosis is given for the genus Limnichites. Descriptions and a key to separate the 12 known species, including five new species, are presented. The new species are Limnichites imparatus, L. porrectus. rudis, L. browni, L. simplex.

Staphylinidae From Under Bark And At Sap Of Trees, A Preliminary Survey Of Species Possibly Beneficial To Forestry (Coleoptera), E. F. Legner, Ian Moore

The Great Lakes Entomologist

Two hundred and one species of Staphylinidae known to be found under bark or at sap of trees are listed. The possibility of these insects being important elements in the population dynamics of forest pests is discussed. An indication is given of the distribution and habitat of each species.

Scotch Pine Deterioration In Michigan Caused By Pine Root Weevil Complex, Daniel G. Mosher, Louis F. Wilson

The Great Lakes Entomologist

Pine root tip weevil, Hylobius rhizophagus, and pine root collar weevil, H. radicis, attack certain Scotch pine stands simultaneously causing more mortality than expected from either insect alone. Recommendations for curtailing this insect complex include favoring red pine, planting Scotch pine far from brood sources, and avoiding stump culture of Christmas trees.

Observations On Colony Size In Bumblebees (Bombus Spp.), Robert W. Husband

The Great Lakes Entomologist

(excerpt)

One factor to consider when attempting to rear bumblebees (Bombus spp.) for pollination of crops is potential colony size. Species which emerge from hibernation early and continue to produce workers late in the summer or early fall are likely to have larger colonies. In contrast, Arctic species such as Bombus polaris Curtis and hyperboreus Schonherr may produce only one brood prior to the sexual brood. Richards (1973) reported that colonies of polaris are smaller than colonies of species from lower latitudes in North America. Hobbs (1967) estimated 772 as a maximum colony sue for huntii Greene in southern …

A New Genus And Species Of Isotomidae (Collembola), And A Redescription Of Cryptopygus Exilus (Gisin) N. Comb, E. C. Bernard

The Great Lakes Entomologist

A new genus and species of Collembola in the family lsotomidae are described from Michigan: Micranurophorus musci n. g., n. sp. A redescription of Cryptopygus exilis (Gisin) (= Isotomina exilis Gisin) is also given, based on specimens from Michigan. The new genus is characterized by the lack of a furcula and by abdominal chaetotaxy similar to Isotomodes. It is related to Pseudanurophorus.

John Robert Eyer: Entomological Work In Pennsylvania And Lists Of Publications, A. G. Wheeler Jr., G. L. Jubb Jr.

The Great Lakes Entomologist

(excerpt)

John Robert Eyer died at Carlsbad, New Mexico, on January 30, 1976. J. G. Watts and W. A. Iselin (1976), his former colleagues in the Department of Botany and Entomology at New Mexico State University, Las Cruces, wrote an obituary and quite naturally focused on Eyer's work at the University's Agricultural Experiment Station. Since Dr. Eyer's first positions in entomology were in Pennsylvania, we have prepared this biographical sketch to preserve the record of his early accomplishments.

On The Occurrence Of Oarisma Garita (Reakirt) (Lepidoptera: Hesperiidae) In Manitoulin District, Ontario, Paul M. Catling

The Great Lakes Entomologist

(excerpt)

On 26 June, 1976, I stopped to examine plants and collect insects on the alvars or limestone barrens on Great La Cloche Island, north of Little Current in Manitoulin District, Ontario. 1 was especially interested to learn whether or not there were any insects of western affinity in this area since some of the plant species present are at, or near to, the eastern limits of their distribution (Catling et al., 1975). It was mild and sunny, and insects were abundant. Within a few minutes 1 noticed a dark, fast-flying skipper that otherwise resembled Thymeliczrs lineola (Ochsenheimer). The dark …

Intraspecific Variation In Taxonomic Characteristics Of The Mayfly Potamanthus Myops (Walsh), Robert J. Lord, Peter G. Meier

The Great Lakes Entomologist

Data collected from an ecological study of the mayfly Potamanthus rnyops (Walsh) in Michigan showed intraspecific variability in taxonomic characteristics that have been employed by previous investigators for species separation. Nymphal dorsal maculation patterns varied considerably within a single population. Also, the ratio of mandibular tusk length to head length increased with successive nymphal instars. Certain adult taxonomic characteristics, particularly relative male imago eye size and distance of separation, were either too poorly defined or too variable to be conclusive in species identification.

Weights Of Polia Grandis Pupae Reared At Two Constant Temperatures (Lepidoptera: Noctuidae), William E. Miller

The Great Lakes Entomologist

Sibling Polia grandis (Boisduval) larvae were reared at two constant temperatures on fresh foliage of quaking aspen (Populus tvemuloides Michx.). Female pupae developing at 25°C were 24% heavier than those developing at 30°C and corresponding males were 32% heavier. Duration of the larval period averaged 51 days at the former temperature and 41 days at the latter. Based on other Lepidoptera, a 24% change in pupal weight affects fecundity by 28 to 130 eggs per female. Fluctuations in larval temperature regime might induce size and fecundity variation in natural populations of grandis and other Lepidoptera.