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Influence Of Temperature On Egg Production In Sunflower Stem Weevil Cylindrocopturus Adspersus (Coleoptera: Cucurlionidae), John F. Barker

The Great Lakes Entomologist

Controlled laboratory experiments were conducted to study the influence of temperature on production of eggs by a sunflower stem weevil Cylindrocopturus adspersus. Maximum egg production occurred when the temperature was 30± 1°C. At 27C the rate of egg production was lower than at 30°C but significant only at the P < 0.1 level. At 20, 23. and 35C egg production was significantly lower than at 30°C (P < 0.05) indicating that temperature can be an important factor in regulating the fecundity of this species.

Observations Of The Habits Of Corthylus Punctatissimus (Coleoptera: Scolytidae) Infesting Maple Saplings In Central Michigan, Richard A. Roeper, Brian J. Palik, Demetrios V. Zestos, Patrick G. Hesch, Celia Duke Larsen

The Great Lakes Entomologist

Corthylus punctatissimus, the pitted ambrosia beetle, infested and killed maple saplings that were 3-12 years of age with a basal diameter of 4-14 mm. The habits of the parental pair of adults are described. The beetles construct a spiral gallery system with about five egg niches per host. Half the brood reaches adult stage during the summer with a sex ratio of 1:1. No relationship was found between the number of niches, length of gallery system, or diameter of stem.

Bibliography Of Sequential Sampling Plans In Insect Pest Management Based On Wald's Sequential Probability Ratio Test, Gary W. Fowler, Ann M. Lynch

The Great Lakes Entomologist

This paper contains 65 references dealing with the development of sequential sampling plans in insect pest management based on Wald's Sequential Probability Ratio Test (SPRT), 25 in forest entomology and 40 in agriculture entomology. The insect(s) sampled, whether the decision procedure was based on one or two SPRTs, and the mathematical distribution and probabilities of Type I and Type II errors used to develop the SPRTs are also given for each sequential sampling plan.

Bacteria As Ovipositional Attractants For Culex Pipiens (Diptera: Culicidae), C. Lee Rockett

The Great Lakes Entomologist

(excerpt)

The study of factors and mechanisms involving ovipositional attractants in mosquitoes is still a relatively new area of research. Some early workers in mosquito biology suggested that gravid mosquitoes simply scattered their eggs indiscriminately on available aquatic sites; however, numerous field studies have failed to provide any real evidence for indiscriminate oviposition. The current idea is that oviposition involves not only locating an aquatic site, but the selection of an environment containing the necessary physical, chemical, and biotic factors required for larval development. It is desirable for female mosquitoes to be able to detect a breeding site that can …

Head Capsule Widths As An Indicator Of The Larval Instar Of Codling Moth (Lepidoptera: Olethreutidae), Peter Weitzner, Mark E. Whalon

The Great Lakes Entomologist

Head capsule width was a reliable indicator of larval instar in a strain of Michigan codling moths, Cydia pomonella. Head capsules were 0.33, 0.50, 0.82, 1.18 and 1.55 mm in width from first to fifth instar respectively. Development as measured by days and degree days was much more variable than head capsule width in estimating larval instars.

Habitats And Spider Prey Of Dipogon Sayi Sayi (Hymenoptera: Pompilidae) In Washington County, Maine, Daniel T. Jennings, Frank D. Parker

The Great Lakes Entomologist

Spider wasps were reared from three types of trap-nests deployed in strip-clearcut areas of a spruce-fir-mixed hardwood forest of Maine. Collections of Dipogon sayi sayi from Mooseborn National Wildlife Refuge, Washington County, represent the easternmost records for the United States. Spider prey included females of Misumena vatia, Xysticus emertoni (new prey record), and X. punctatus, and juveniles and penultimate males of Xysticus sp. We found no evidence of nest-site competition between spider wasps and eumenid wasps (Hymenoptera: Eumenidae) that prey on spruce budwornl, Choristoneura fumiferana, when available nesting sites ranged from 320 to 4400,

Spruce Budworm And Other Lepidopterous Prey Of Eumenid Wasps (Hymenoptera: Eumenidae) In Spruce-Fir Forests Of Maine, Judith A. Collins, Daniel T. Jennings

The Great Lakes Entomologist

Three species of eumenid wasps, Ancistrocerus adiabatus, Ancistrocerus antilope, and Euodynerus Ieucomelas, accepted and provisioned trap-nesting blocks with lepidopterous larvae, A pyralid. Nephopteryx sp., was the most commonly provisioned prey. A. adiabarus and E. leucomelas preyed on late instars of the spruce budworm, Choristoneura fumiferana: however. budworms accounted for only 6% of the provisioned prey. Estimates of budworm population densities before and after wasp predation, and subsample-s of provisioned prey indicated no significant reductions i = 0.065%) in budworm populations attributable to trap-nesting wasps.

Further Observations On The Nesting Behavior Of Liris Argentatus (Hymenoptera: Sphecidae), Frank E. Kurczewski, Margery G. Spofford

The Great Lakes Entomologist

A three-celled nest of Liris argentatus was excavated and examined in upstate New York. The nest was constructed from the terminus of an abandoned cicada-killer burrow and the cells contained 1-4 incompletely paralyzed Gryllus pennsylvanicus as prey. Two of the three cells were cleptoparasitized by the satellite fly Senotainia trilineata. The components of the ecology and behavior of L. argentatus we observed are compared with those from previous studies on this species.

Life History, Damage, And Gall Development Of The Gall Midge, Neolasioptera Brevis (Diptera: Cecidomyiidae), Injurious To Honeylocust In Michigan, Louis F. Wilson, George C. Heaton

The Great Lakes Entomologist

Neolasioptera brevis is univoltine in Michigan. Adults issue in late spring, and females deposit eggs in rows on the lower side of young shoots of honeylocust. Larval eclosion occurs shortly after: there are three larval instars. The gall is polythalamous and may have 20 or more larvae. The third-instar larvae overwinter, and pupation occurs in spring. The gall injury kills sorne shoots, but most damage is cosmetic. One can monitor for adult emergence in late April or May by observing cast pupal cases protruding from the gall. Control, if needed, should be directed at adults.

Use Of Aluminum-Foil And Oat-Straw Mulches For Controlling Aster Leafhopper, Macrosteles Fascifrons (Homoptera: Cicadellidae), And Aster Yellows In Carrots., Dwi P. Setiawan, David W. Ragsdale

The Great Lakes Entomologist

Aluminum-foil and oat-straw mulches significantly (P < 0.05) reduced aster leafhopper numbers on carrots compared to an untreated control and a malathion spray treatment during the first half of the growing season. The amount of reflected light was significantly higher in both aluminum-foil and oat-straw mulched plots compared to unmulched treatments. Mulch effectiveness decreased when the closing carrot canopy reduced surface area of reflective mulches and amount of reflected light The percentage of aster yellows-infected plants was significantly lower (P < 0.05) in aluminum-foil and straw mulches and in the malathion spray plots compared to the untreated control. Results demonstrated that aluminum-foil and straw mulches gave control of aster leafhoppers and aster yellows in carrots equal to that of a conventional insecticide spray program.

Effect Of Prey Density On Diurnal Activity And Ovarian Development In Calosoma Calidum (Coleoptera: Carabidae): Implications For Biological Control Of The Gypsy Moth, Lymantria Dispar (Lepidoptera: Lymantriidae) In The Midwest, Michael R. Jeffords, Laurie J. Case

The Great Lakes Entomologist

Four feeding treatments were used in the laboratory to study the effects of the availability of prey on diurnal behavior and ovarian development of Calosoma calidum. Activity was closely monitored for six weeks. No significant differences were found between male and female behavior patterns. Diurnal beetle activity was found to be inversely related to prey density; in treatments where prey was available, diurnal activity declined during the course of the experiment. At the end of six weeks, dissections of female beetles showed that ovarian development and fat body quantity were dependent upon the number of prey available for consumption.

Designation Of A Neotype For Sphinx Poecila Stephens (Lepidoptera: Sphingidae), J.C. E. Riotte

The Great Lakes Entomologist

(excerpt)

This designation of a neotype, in accordance with the provisions of Article 75(b) of the International Code of Zoological Nomenclature (1985), has to be considered as continuation of the revisional article "Sphinx poecila, a valid North American species (Lepidoptera Sphingidae)" (Riotte 1980).

Northern Distribution Records For Some Nearctic Pompilidae (Hymenoptera), Frank E. Kurczewski, Edmund J. Kurczewski

The Great Lakes Entomologist

Distributional records and nomenclatural changes are presented for 20 species of Nearctic Pompilidae. The records extend the species' ranges northward in North America, are peripheral on the northern boundaries of the ranges, or fill in sizeable gaps in the distributions. Flower records, habitat notes, and remarks on the prey are given for some of the species.

Nest And Prey Of Ageniella (Leucophrus) Fulgifrons (Hymenoptera: Pompilidae), Frank E. Kurczewski, Edmund J. Kurczewski

The Great Lakes Entomologist

Information on the habitat, nest-site, hunting, prey transport, closure, burrow structure, and prey of Ageniella (Leucophrus) fulgifrons is presented. Components of the nesting behaviors of other species of Ageniella are examined and compared with those of A. fulgifrons.

Biology And Distribution Of Tachysphex Aethiops In Michigan (Hymenoptera: Sphecidae: Larrinae), Mark F. O'Brien

The Great Lakes Entomologist

Tachysphex aethiops is a primarily western species that also occurs in the Upper Peninsula of Michigan. Females nest in mossy, sand slopes and utilize pre-existing burrows of other insects. One shallow, five-celled nest contained a single, third-instar nymph of Spharagemon sp., probably bolli, in each cell. Three prey were parasitized by miltogrammine flies.

Distribution And Host Plants Of Corthylus Punctatissimus (Coleoptera: Scolytidae) In The Lower Peninsula Of Michigan, Richard A. Roeper, Demetrios V. Zestos, Brian J. Palik, Larry R. Kirkendall

The Great Lakes Entomologist

(excerpt)

The pitted ambrosia beetle. Corthylus punctatissimus Zimmerman, infests woody saplings and shrubs 14 mm in diameter or less. The beetle bores an entrance hole into the main stem at soil level and constructs a main gallery tunnel which generally spirals downward in the stem. Egg-niche construction is followed by inoculation of symbiotic fungi and oviposition. The main stem of the host tree wilts as a result of the girdling activity of the beetle. Finnegan (1967) described the life history of C. punctatissimus infesting Acer saccharum Marshall in Ontario and Quebec.

Comparative Biology Of Temperate And Subtropical Bark And Ambrosia Beetles (Coleoptera: Scolytidae, Platypodidae) In Indiana And Florida, Mark Deyrup, Thomas H. Atkinson

The Great Lakes Entomologist

Bark and ambrosia beetles were compared from two intensively studied sites. The Indiana site produced 58 species, the Florida site 57 species; 17 species occurred at both sites. Much greater plant host diversity at the Indiana site seems balanced by more favorable climate at the Florida site. There are more exotic species at the Florida site. Different patterns in feeding habits and mating habits of the beetles are related to the climate and history of the sites in complex ways. A list of the and their habits is included.

New Distribution Records Of Scolytidae From Indiana And Florida, Mark Deyrup, Thomas H. Atkinson

The Great Lakes Entomologist

Twenty-three new state records are provided for Florida and Indiana Scolytidae; 92 species are now known from Indiana, 112 from Florida.