Gene Kritsky | Mount St. Joseph University (original) (raw)
Papers by Gene Kritsky
The periodical cicada Brood XIX emerged during May and June 2011 in southernmost Posey County, br... more The periodical cicada Brood XIX emerged during May and June 2011 in southernmost Posey County, bringing to five the number of established broods in Indiana.
American Entomologist, 1998
The periodical cicadas of North America (Magicicada spp.) are well-known for their long life cycl... more The periodical cicadas of North America (Magicicada spp.) are well-known for their long life cycles of 13 and 17 years and their mass synchronized emergences. Although periodical cicada life cycles are relatively strict, the biogeographic patterns of periodical cicada broods, or year-classes, indicate that they must undergo some degree of life cycle switching. We present a newmap of periodical cicada Brood V, which emerged in 2016, and demonstrate that it consists of at least four distinct parts that span an area in the United States stretching from Ohio to Long Island. We discuss mtDNA haplotype variation in this brood in relation to other periodical cicada broods, noting that different parts of this brood appear to have different origins. We use this information to refine a hypothesis for the formation of periodical cicada broods by 1and 4-year life cycle jumps. Subjects Ecology, Entomology, Evolutionary Studies, Zoology
Brood X of the periodical cicadas emerged in parts of western Ohio during late May and June, 1987... more Brood 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. OHIO J. SCI. 88 (4): 168-170, 1988
Ohio Journal of Science, 1992
Periodical cicadas of the 17-year brood XIV emerged in parts of southern Ohio in 1991. The emerge... more Periodical 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. Ohio J. Sci. 92 (1): 38-39, 1992 INTRODUCTION Brood XIV of the periodical cicadas emerged in parts of southern Ohio in May and June 1991. All three periodical species, Magicicada septendecim, M. cassini, and M. septendecula were collected. Periodical cicadas were first recorded in Ohio when they emerged in Brown County in 1804 and in the years since Ohio has consistently witnessed four broods of 17-year cicadas. Brood V occurs over most of the eastern hal...
The Journal of Agriculture of the University of Puerto Rico, 1969
A REVISION OF THE GENUS ENICOCEPHALUS (HEMIPTERA: ENICOCEPHALIDAE).
Entomopathogenic fungi routinely kill their hosts before releasing infectious spores, but select ... more Entomopathogenic fungi routinely kill their hosts before releasing infectious spores, but select species keep insects alive while sporulating, which enhances dispersal. Transcriptomics and metabolomics studies of entomopathogens with post-mortem dissemination from their parasitized hosts have unraveled infection processes and host responses, yet mechanisms underlying active spore transmission by Entomophthoralean fungi in living insects remain elusive. Here we report the discovery, through metabolomics, of the plant-associated amphetamine, cathinone, in four Massospora cicadina-infected periodical cicada populations, and the mushroom-associated tryptamine, psilocybin, in annual cicadas infected with Massospora platypediae or Massospora levispora, which appear to represent a single fungal species. The absence of some fungal enzymes necessary for cathinone and psilocybin biosynthesis along with the inability to detect intermediate metabolites or gene orthologs are consistent with poss...
American Entomologist, 2015
American Entomologist, 2014
American Entomologist, 2017
American Entomologist, 2016
Proceedings of the Indiana Academy of Science, 1986
American Entomologist, 2011
American Entomologist, 2009
American Entomologist, 1997
American Entomologist, 1999
American Entomologist, 2015
American Entomologist, 2011
American Entomologist, 2004
From the Editor-EDITOR'S NOTE E ntomophiles in parts of the eastern United States are currently a... more From the Editor-EDITOR'S NOTE E ntomophiles in parts of the eastern United States are currently awaiting the return of the periodical cicadas of Brood X. I first experienced Brood X during its last emergence in 1987, just four years after moving into the Cincinnati area; it was one of three reasons I moved there (the other two being baseball and trilobites). A periodical cicada emergence is like a living time capsule in that it encourages us to think of the changes that have taken place since the last emergence. When Brood X last emerged, Ronald Reagan was President of the United States, we considered Saddam Hussein an ally, and this journal had a different name: the Bulletin. Like the cicada emergence, this issue of American Entomologist is also a milestone. It is our 50th issue, and included in this issue on page 17 is a photographic review of our changing covers. In looking over them, I had an opportunity to reflect on the changes that were initiated with the journal's new name. Many of our members will remember the original Bulletin of the Entomological Society of America. Its early issues were plainly appointed in a solid-colored cover with black text, and the content consisted of the minutes of section and branch meetings, along with a few feature and research papers. The conversion to a new format including color photographs and feature articles along with research papers started under the banner of the Bulletin, but we soon changed the name of the journal to American Entomologist as the journal transitioned to its new format and editorial philosophy. It was written in our first new issue that the name change was in honor of the original American Entomologist published by Benjamin D. Walsh and Charles V. Riley. A recent issue of the ESA newsletter included the results of a membership survey that reported that a large number of our readers consider American Entomologist a major benefit of membership in ESA. This is a complement to my predecessors and their hard work, and I think that Walsh and Riley would be pleased if they knew how widely their journal's namesake is appreciated. I am looking forward to the next 50 issues, just as I will look forward to the next appearance of Brood X in 2021.
American Entomologist, 2010
The periodical cicada Brood XIX emerged during May and June 2011 in southernmost Posey County, br... more The periodical cicada Brood XIX emerged during May and June 2011 in southernmost Posey County, bringing to five the number of established broods in Indiana.
American Entomologist, 1998
The periodical cicadas of North America (Magicicada spp.) are well-known for their long life cycl... more The periodical cicadas of North America (Magicicada spp.) are well-known for their long life cycles of 13 and 17 years and their mass synchronized emergences. Although periodical cicada life cycles are relatively strict, the biogeographic patterns of periodical cicada broods, or year-classes, indicate that they must undergo some degree of life cycle switching. We present a newmap of periodical cicada Brood V, which emerged in 2016, and demonstrate that it consists of at least four distinct parts that span an area in the United States stretching from Ohio to Long Island. We discuss mtDNA haplotype variation in this brood in relation to other periodical cicada broods, noting that different parts of this brood appear to have different origins. We use this information to refine a hypothesis for the formation of periodical cicada broods by 1and 4-year life cycle jumps. Subjects Ecology, Entomology, Evolutionary Studies, Zoology
Brood X of the periodical cicadas emerged in parts of western Ohio during late May and June, 1987... more Brood 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. OHIO J. SCI. 88 (4): 168-170, 1988
Ohio Journal of Science, 1992
Periodical cicadas of the 17-year brood XIV emerged in parts of southern Ohio in 1991. The emerge... more Periodical 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. Ohio J. Sci. 92 (1): 38-39, 1992 INTRODUCTION Brood XIV of the periodical cicadas emerged in parts of southern Ohio in May and June 1991. All three periodical species, Magicicada septendecim, M. cassini, and M. septendecula were collected. Periodical cicadas were first recorded in Ohio when they emerged in Brown County in 1804 and in the years since Ohio has consistently witnessed four broods of 17-year cicadas. Brood V occurs over most of the eastern hal...
The Journal of Agriculture of the University of Puerto Rico, 1969
A REVISION OF THE GENUS ENICOCEPHALUS (HEMIPTERA: ENICOCEPHALIDAE).
Entomopathogenic fungi routinely kill their hosts before releasing infectious spores, but select ... more Entomopathogenic fungi routinely kill their hosts before releasing infectious spores, but select species keep insects alive while sporulating, which enhances dispersal. Transcriptomics and metabolomics studies of entomopathogens with post-mortem dissemination from their parasitized hosts have unraveled infection processes and host responses, yet mechanisms underlying active spore transmission by Entomophthoralean fungi in living insects remain elusive. Here we report the discovery, through metabolomics, of the plant-associated amphetamine, cathinone, in four Massospora cicadina-infected periodical cicada populations, and the mushroom-associated tryptamine, psilocybin, in annual cicadas infected with Massospora platypediae or Massospora levispora, which appear to represent a single fungal species. The absence of some fungal enzymes necessary for cathinone and psilocybin biosynthesis along with the inability to detect intermediate metabolites or gene orthologs are consistent with poss...
American Entomologist, 2015
American Entomologist, 2014
American Entomologist, 2017
American Entomologist, 2016
Proceedings of the Indiana Academy of Science, 1986
American Entomologist, 2011
American Entomologist, 2009
American Entomologist, 1997
American Entomologist, 1999
American Entomologist, 2015
American Entomologist, 2011
American Entomologist, 2004
From the Editor-EDITOR'S NOTE E ntomophiles in parts of the eastern United States are currently a... more From the Editor-EDITOR'S NOTE E ntomophiles in parts of the eastern United States are currently awaiting the return of the periodical cicadas of Brood X. I first experienced Brood X during its last emergence in 1987, just four years after moving into the Cincinnati area; it was one of three reasons I moved there (the other two being baseball and trilobites). A periodical cicada emergence is like a living time capsule in that it encourages us to think of the changes that have taken place since the last emergence. When Brood X last emerged, Ronald Reagan was President of the United States, we considered Saddam Hussein an ally, and this journal had a different name: the Bulletin. Like the cicada emergence, this issue of American Entomologist is also a milestone. It is our 50th issue, and included in this issue on page 17 is a photographic review of our changing covers. In looking over them, I had an opportunity to reflect on the changes that were initiated with the journal's new name. Many of our members will remember the original Bulletin of the Entomological Society of America. Its early issues were plainly appointed in a solid-colored cover with black text, and the content consisted of the minutes of section and branch meetings, along with a few feature and research papers. The conversion to a new format including color photographs and feature articles along with research papers started under the banner of the Bulletin, but we soon changed the name of the journal to American Entomologist as the journal transitioned to its new format and editorial philosophy. It was written in our first new issue that the name change was in honor of the original American Entomologist published by Benjamin D. Walsh and Charles V. Riley. A recent issue of the ESA newsletter included the results of a membership survey that reported that a large number of our readers consider American Entomologist a major benefit of membership in ESA. This is a complement to my predecessors and their hard work, and I think that Walsh and Riley would be pleased if they knew how widely their journal's namesake is appreciated. I am looking forward to the next 50 issues, just as I will look forward to the next appearance of Brood X in 2021.
American Entomologist, 2010
In this book we collected important beekeeping findings, historical and archaeological, presented... more In this book we collected important beekeeping findings, historical and archaeological, presented by Israel, Turkey, Egypt, the Cyclades and the Mediterranean in general, covering 4.000 years course of beekeeping practice through the centuries and new findings in relation to the local bee races. The articles are based on the presentations from the First International Beekeeping Symposium on Cyclades- Syros, which was completed by a collaboration between the Cyclades Chamber- Greece, the Eva Crane Trust- UK and the Hellenic Agricultural Organization “DEMETER” - Div. of Apiculture. The Symposium in Syros was dedicated to the memory of Eva Crane and the book is dedicated to the memory of Thanassis Bikos.