22,756 research outputs found
Cicindela. Vol. I., No. I. March, 1969. Edited by R.L. Huber, R.G. Graves and H.L. Willis. Osseo, Minnesota. 24 pp. $3.50/volume.
Excerpt: Cicindela, a new entomological journal for cicindelophiles, is an experiment in extreme specialization. Supporting enthusiasts chose the scope as world-wide Cicindelidae over the alternatives of world-wide Caraboidea (Carabidae and Cicindelidae), and Nearctic Caraboidea, or Nearctic Cicindelidae. Ronald L. Huber, instigator and spearhead of the publication, proposes to publish it in quarterly numbers to total approximately 100 pages per volume each year
Relative Susceptibilities of Three Ponderosa Pine Sources to European Pine Sawfly (Hymenoptera: Diprionidae) Attack in Michigan
[excerpt] Accidentally introduced into New Jersey about 1925, the European pine sawfly, Neodiprion sertifer (Geoffroy), now inhabits most of the Northeastern and North Central States and Ontario, Canada. Red pine, Pinus resinosa Aiton, and most other native and exotic pines within its range are susceptible to attack. Few attack records are available for ponderosa pine, P. ponderosa Douglas ex Lawson, because this pine is uncommon in eastern North America. Soraci (1939) ob- served egg clusters and larval feeding on planted red and ponderosa pine in New Jersey; Benjamin et al. (1955) found egg clusters on ponderosa pine in Illinois and recorded more intensive attacks on red pines nearby. However, quantitative data on the relative susceptibility of ponderosa pine to sawfly attack have never been reported
Spatial Distribution of Egg Clusters of the European Pine Sawfly \u3ci\u3eNeodiprion Sertifer\u3c/i\u3e (Geoff.) in Young Pine Plantations in Michigan
(excerpt)
The European pine sawfly, Neodiprion sertifer (Geoffroy), is a perennial problem in young pine plantations in Eastern North America. Scotch pine, Pinus sylvestris L., and red pine, P. resinom Ait., are its principal hosts. During recent behavioral studies of this sawfly in Michigan, spatial distribution patterns were determined in order to rapidly survey population levels in young pine plantations (Wilson and Gerrard, 1971). Earlier, Lyons (1964b) presented some distributional data on N. sertifer in regard to population sampling. Wright et al. (1967) and Hattemer et al. (1969) discussed N. sertifer distributions in Scotch pine and mixed pine species provenancz plantings
Stenonemobius gracilis (Jakovleff, 1871): an addition to the orthopteran fauna of the Maltese Islands (Orthoptera: Gryllidae)
Stenonemobius gracilis is recorded for the first time from the Maltese Islands on the basis of two specimens taken at light in 1993 at Mellieħa Bay, and subsequent records of specimens, collected between 1999 and 2004, from various sites located on the ‘northwest’ region of Malta and one site on Gozo. It is suggested that this species may well have been overlooked previously due to its diminutive size and nocturnal habits.peer-reviewe
The Capability of Some Butterflies as Carriers of Common Milkweed Pollen
The common milkweed, Asclepias syriaca L., is remarkably adapted for cross pollination by insects. Its pollen sacs (pollinia) are often found attached to the appendages of bees, wasps, butterflies, and other insects that visit milkweed for its nectar (Judd, 1955; Matheson, 1951 ; Muller, 1883).
In the summer of 1966 and 1967 I collected numerous pierid and nymphalid butterflies associated with milkweed plants in Michigan in order to examine them for their pollen-carrying capability. Species of butterflies collected were Colias interior Scudder, C. eurytheme Boisduval, Pieris rapae (L.). and Speyeria aphrodite (Fab.). These insects were taken while feeding on or flying near milkweed plants between 3 July and 22 July each year--the period when milkweed was in full bloom--in Crawford, Montmorency, and Oscoda Counties, Michigan
Shoreline Aggregation Behavior of Adults of a Midge, Chironomus Sp. (Diptera: Chironomidae) at Solberg Lake, Wisconsin
Excerpt: Adult chironomid midges are well known to visitors at northern Wisconsin lakes during the spring and summer. Although the larval stages of chironomids supplement the diet of fish, the adults are often a nuisance because they aggregate in huge aerial swarms near beaches, collect at lights, alight on various objects including people, and deposit green specks wherever they rest. The most familiar midge in Wisconsin is Chirononmus plumosus (L.) which has been studied at Lake Pepin (Johnson and Munger, 1930) and at Lake Winnebago (Burrill, 1913; Hilsenhoff, 1959,1966,1967)
Location and Condition of Whitemarked Tussock Moth (Lepidoptera: Lymantriidae) Cocoons in a Michigan Black Walnut Plantation
Whitemarked tussock moth, Orgyia leucostigma, cocoons were monitored in a black walnut, Juglans nigra, plantation in Michigan from 1978 to 1981. Larvae spun cocoons on the exposed bark of the bole (29.6070), in crevices on the bole formed by pruning wounds (17.5%), beneath limbs (24.2%), and in branch crotches (28.7%). Parasites and predators destroyed 88% of the pupae in their cocoons. The tussock moth population, although moderate to high in the egg stage, decreased sufficiently in the larval stages each year to cause no more than 5010 defoliation to individual trees
Life History and Outbreaks of an Oak Leafroller, Archips Semiferanus (Lepidoptera: Tortricidae), in Michigan
In the late 1960\u27s an outbreak of yellow-green tortricid larvae occurred over hundreds of thousands of acres of red oaks in northeastern Lower Michigan. At first the insect was thought to be the fruit tree leafroller, Archips argyrospilus (Walker); adult specimens, however, were identified by Freeman as A. serniferanus Walker. On forest lands oak or pine was the preferred cover type. In urban areas, the problem was acute where red oaks were the predominant shade tree.
In 1969 and 1970 I observed this insect to learn about its life history, habits, and distribution. Besides regular field collections, some cage studies and laboratory rearings were done
Ethical Aspects of Insurance
The nature and ethical basis for insurance in general will be briefly discussed. Reference will then be made to alternatives to insurance as a means for meeting the cost of medical care. Finally, the ethical aspects of private insurance and social insurance will be analyzed as means for paying for health services
- …