Brief Note The 1987 Emergence of the Periodical Cicada (Homoptera: Cicadidae: Magicicada spp.: Brood X) in Ohio

Author Institution: Department of Biology, College of Mount St. JosephBrood X of the periodical cicadas emerged in parts of western Ohio during late May and June, 1987. Periodical cicadas were reported in 26 counties in western Ohio, including three new county records. The 1987 distribution was compared to the historical record of periodical cicadas in Ohio, revealing that the distribution of Brood X has been greatly reduced in the last century and that 12 counties have witnessed 4-year accelerations of the 17-year life cycle

Brief Note: The 1991 Emergence of the Periodical Cicadas (Homoptera: Cicadidae: Magicicada spp.: Brood XIV) in Ohio

Author Institution: Department of Biology, College of Mount St. JosephPeriodical cicadas of the 17-year brood XIV emerged in parts of southern Ohio in 1991. The emergence was heaviest in extreme southern Ohio where eastern Hamilton, Clermont, Brown, Adams, Scioto, Lawrence, Highland, and Ross counties reported the heaviest populations. Lighter and scattered emergences were reported in Champaign, eastern Butler, southern Warren, Clinton, Fayette, Greene, Pike, Jackson, Gallia, and Washington counties. The distribution of brood XTV in Ohio has remained relatively constant during the past two centuries

Morphological conservatism in the foreleg structure of cicada hatchlings, Novicicada burmanica n. gen., n. sp. in Burmese amber, N. youngi n. gen., n. sp. in Dominican amber and the extant Magicicada septendecim (Fisher) (Hemiptera: Cicadidae)

Two new species of cicada hatchlings in Burmese and Dominican amber are described as Novicicada burmanica n. gen., n. sp. and N. youngi n. gen., n. sp. in the new collective genus Novicicada n. gen. (Hemiptera: Cicadidae). Diagnostic characters of the new genus are an elongate, flattened body, all antennomeres of subequal width, elongate procoxae, enlarged profemurs with spurs and spines, foretibiae with spurs and spines and the foretarsi subapically attached to the foretibiae. A comparison of the forelegs of the fossil hatchlings with an extant hatchling of the periodical cicada, Magicicada septendecim (Fisher) reveals a remarkable degree of morphological conservatism over 100 million years. A brief review of fossil cicadas is presented.Keywords: Dominican amber, Morphological conservatism, Novicicada n. gen., Periodical cicada, Magicicada septendecim, Burmese amber, Cicada hatchlingsKeywords: Dominican amber, Morphological conservatism, Novicicada n. gen., Periodical cicada, Magicicada septendecim, Burmese amber, Cicada hatchling

A REVISION OF THE GENUS ENICOCEPHALUS (HEMIPTERA: ENICOCEPHALIDAE).

A REVISION OF THE GENUS ENICOCEPHALUS (HEMIPTERA: ENICOCEPHALIDAE)

The Systematics of The Enicocephalidae

118 p.Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1977.U of I OnlyRestricted to the U of I community idenfinitely during batch ingest of legacy ETD

Arthropod entombment in weathering-formed opal: new horizons for recording life in rocks

International audienceAnimal fossils preserved in various geological materials, such as limestone, claystone, or amber, provide detailed information on extinct species that is indispensable for retracing the evolution of terrestrial life. Here, we present the first record of an animal fossil preserved in opal formed by weathering with such high-resolution details that even individual cuticle hairs are observed. The fossil consists of the exoskeleton of a nymphal insect belonging to the order Hemiptera and either the family Tettigarctidae or the Cicadidae. This identification is based on anatomical details such as the tibial and femoral morphology of the forelegs. The exoskeleton of the insect was primarily zeolitized during the alteration of the host rocks and later sealed in opal deposited by silica-rich fluids derived from the continental weathering of the volcanic host rocks. Organic matter is preserved in the form of amorphous carbon. This finding makes opal formed by rocks weathering a new, complementary source of animal fossils, offering new prospects for the search for ancient life in the early history of Earth and possibly other terrestrial planets such as Mars, where weathering-formed opal occurs