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Articles 121 - 150 of 151
Full-Text Articles in Entomology
A New Species Of Parachrysina Bates (Coleoptera: Scarabaeidae: Rutelinae) From Nuevo Leon, Mexico, Mary Liz Jameson
A New Species Of Parachrysina Bates (Coleoptera: Scarabaeidae: Rutelinae) From Nuevo Leon, Mexico, Mary Liz Jameson
University of Nebraska State Museum: Entomology Papers
Parachrysina borealis is described as new, and a revised key to the species is provided. Parachrysina borealis represents the northernmost extent of the genus and is the only species of Areodina known from northeastern Mexico.
Book Review: The Beetles Of The World (Moron, M.A. 1990), Brett C. Ratcliffe
Book Review: The Beetles Of The World (Moron, M.A. 1990), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Depending on the audience, the Sciences Nat series on beetles of the world is either warmly embraced for its beautiful photography "enabling" picture identifications or rejected because of its simplistic approach to complex taxonomic issues. Moron, operating under a narrow set of editorial guidelines (e.g., no keys), has done a remarkably good job at bridging this gap with his treatment of Pelidnotina. The result is not only a beautiful book (as most in this series are), but one that is also scientifically credible. Given that any revision of Plusiotis deserved a color rendition, and that the Sciences Nat series is …
Revision, Phylogeny And Biogeography Of The Genera Parabyrsopolis Ohaus And Viridimicus, New Genus (Coleoptera: Scarabaeidae: Rutelinae), Mary Liz Jameson
Revision, Phylogeny And Biogeography Of The Genera Parabyrsopolis Ohaus And Viridimicus, New Genus (Coleoptera: Scarabaeidae: Rutelinae), Mary Liz Jameson
University of Nebraska State Museum: Entomology Papers
The North American genus Parabyrsopolis is redefined, and a sister genus, Viridimicus, is established to accommodate those species from southern Mexico to Guatemala previously placed in Cotalpa or Parabyrsopolis. Parabyrsopolis is now monotypic, and four new species (of six) in the genus Viridimicus are described from Mexico: V. cyanochlorus, V. impunctatus, V. ratcliffei,and V. unitus. A key to the species of Viridirnicus, as well as keys to the tribes of Rutelinae, subtribes of Rutelini, and genera of Areodina are presented. Phylogenetic hypotheses (based on cladistic methodology) and biogeographic hypotheses (based on vicariance and …
Scientific Note: Corrections And Clarifications To Endrödi’S The Dynastinae Of The World (Coleoptera: Scarabaeidae), Brett C. Ratcliffe
Scientific Note: Corrections And Clarifications To Endrödi’S The Dynastinae Of The World (Coleoptera: Scarabaeidae), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
The Dynastinae of the World by the late Sebo Endrodi was published in 1985. This long-awaited book condensed into one English language volume Endrodi's series of 22 principal papers on the entire subfamily Dynastinae. Judging from conversations and correspondence with colleagues, the book has been very well received. . .as well it should have been for it will provide a framework for all future studies on the Dynastinae.
A Synopsis Of The American Goliathini With Description Of A New Neoscelis From Mexico (Coleoptera: Scarabaeidae: Cetoniinae), Miguel E. Moron, Brett C. Ratcliffe
A Synopsis Of The American Goliathini With Description Of A New Neoscelis From Mexico (Coleoptera: Scarabaeidae: Cetoniinae), Miguel E. Moron, Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
The two formerly monobasic genera of American Goliathini, Ischnoscelis and Neoscelis, are reviewed. Neoscelis longiclava Moron and Ratcliffe is described as new from Jalisco state in Mexico. A key and illustrations are provided to all taxa.
A Synopsis Of The Genus Areoda (Coleoptera: Scarabaeidae: Rutelinae), Brett C. Ratcliffe, Mary Liz Jameson
A Synopsis Of The Genus Areoda (Coleoptera: Scarabaeidae: Rutelinae), Brett C. Ratcliffe, Mary Liz Jameson
University of Nebraska State Museum: Entomology Papers
The three species in the genus Areoda are reviewed for the first time. The genus is characterized, a key to species is provided, each species is described, spatial and temporal distributions are given, and the biogeography is discussed. We consider their distribution to be isolated and relictual in the Atlantic coastal forests of southeastern Brazil.
Diversity Of Coprophagous Scarabaeidae (Coleoptera) In Grazed Versus Ungrazed Sandhills Prairie In Western Nebraska, Mary Liz Jameson
Diversity Of Coprophagous Scarabaeidae (Coleoptera) In Grazed Versus Ungrazed Sandhills Prairie In Western Nebraska, Mary Liz Jameson
University of Nebraska State Museum: Entomology Papers
Baited pitfall traps were used to compare the dung-feeding Scarabaeidae (Coleoptera) of a grazed versus an ungrazed sandhills prairie in western Nebraska. Traps yielded 14,832 coprophagous Scarabaeidae over a 4-week sampling period in 1987. Canthon ebenus (Say), C. pilurarius (L.), Onthophagous hecate Panzer, and O. pennsylvanicus Harold were the dominant species on both prairies. The Shannon-Wiener diversity index indicated that diversity was slightly higher on the grazed site, whereas the Margalef diversity index showed the diversities to be nearly the same. Activity and foraging by scarabs (as measured by trapping success) were found to be most closely correlated with temperature …
Scientific Note: A Case Of Gynandromorphy In Golofa Tersander Burmeister (Coleoptra: Scarabaeidae), Brett C. Ratcliffe
Scientific Note: A Case Of Gynandromorphy In Golofa Tersander Burmeister (Coleoptra: Scarabaeidae), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Golofa tersander is a sexually dimorphic species with males possessing a long, slender horn arising from the frons, a distinct pronotal tubercle anteriorly, a strongly convex pygidium, and an apically emarginate last sternite. Females, on the other hand, have only a tubercle on the frons, lack a pronotal tubercle, possess a relatively flat pygidium, and the last sternite is entire apically. Both of the specimens described here exhibit all of these external male character states just mentioned.
A New Species Of Pelidnota (Coleoptera: Scarabaeidae: Rutelinae) From Panama, Brett C. Ratcliffe, Mary Liz Jameson
A New Species Of Pelidnota (Coleoptera: Scarabaeidae: Rutelinae) From Panama, Brett C. Ratcliffe, Mary Liz Jameson
University of Nebraska State Museum: Entomology Papers
Pelidnota hirsutiphallica new species, is described as new from Colon and Bocas del Toro provinces in Panama. It is incorporated into the most recent key to the genus and distinguished from its congeners.
A New Species Of Aphodius (Coleoptera: Scarabaeidae: Aphodiinae) From Nebraska, Brett C. Ratcliffe
A New Species Of Aphodius (Coleoptera: Scarabaeidae: Aphodiinae) From Nebraska, Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Aphodius gordoni Ratcliffe, new species, is described from the Sandhills of Nebraska. Its larval stages and life history remain unknown, but it may be a sand detritivore.
New Species And Distributions Of Neotropical Phileurini And A New Phileurine From Burma (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe
New Species And Distributions Of Neotropical Phileurini And A New Phileurine From Burma (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Seven new species are described: Amblyoproctus boondocksius (Brazil), Eophileurus tetraspermexitus (Burma), Hemiphileurus insularis (Brazil), H. jarnesonae (Panama), Palaeophileurus brasiliensis (Brazil), P. marcusoni (Brazil), and Phileurus youngi (Panama). New distribution records are given for Arnblyoproctus piliger (Perty), A. torulosus Kolbe, Archophileurus elatus Prell, Goniophileurus femoratus Burmeister, Hemiphileurus punctatostriatus Prell, Phileurm valgus (Olivier), and Planophileurus planicollis (Chevrolat).
The Origin Of Chubutolithes Ihering, Ichnofossils From The Eocene And Oligocene Of Chubut Province, Argentina, Thomas M. Bown, Brett C. Ratcliffe
The Origin Of Chubutolithes Ihering, Ichnofossils From The Eocene And Oligocene Of Chubut Province, Argentina, Thomas M. Bown, Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
ABSTRACT-The distinctive trace fossil Chubutolithes gaimanensis n. ichnosp. occurs in Casamayoran (early Eocene) and Colhuehaupian (late Oligocene) alluvial rocks of the Sarmiento Formation in eastern Chubut Province, Argentina. Though known for nearly 70 years, its origin has remained obscure. Examination of new specimens and comparisons with modem analogs demonstrate that specimens of Chubutolithes represent the fossil nests of a mud-dauber (Hymenoptera: Sphecidae). Virtually identical nests are constructed today by mud-daubers in areas as disparate as southern Santa Cruz Province, Argentina, and Nebraska, confirming that quite similar trace fossils can be produced by several different taxa in a higher taxonomic clade. …
The Origin Of Chubutolithes Ihering, Ichnofossils From The Eocene And Oligocene Of Chubut Province, Argentina, Thomas M. Bown, Brett C. Ratcliffe
The Origin Of Chubutolithes Ihering, Ichnofossils From The Eocene And Oligocene Of Chubut Province, Argentina, Thomas M. Bown, Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
The distinctive trace fossil Chubutolithes gaimanensis n. ichnosp. occurs in Casamayoran (early Eocene) and Colhuéhaupian (late Oligocene) alluvial rocks of the Sarmiento Formation in eastern Chubut Province, Argentina. Though known for nearly 70 years, its origin has remained obscure. Examination of new specimens and comparisons with modem analogs demonstrate that specimens of Chubutolithes represent the fossil nests of a mud-dauber (Hymenoptera: Sphecidae). Virtually identical nests are constructed today by mud-daubers in areas as disparate as southern Santa Cruz Province, Argentina, and Nebraska, confirming that quite similar trace fossils can be produced by several different taxa in a higher taxonomic clade. …
Two New Species Of Dyscinetus From The West Indies And South America (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe
Two New Species Of Dyscinetus From The West Indies And South America (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Dyscinetus imitator is described as new from Grand Cayman Island, West Indies, and D. ornaticaudus is described as new from Colombia.
A New Subspecies Of Inca Clathrata (Olivier) From Trinidad, West Indies, And Range Extensions For Inca Clathrata Sommeri Westwood (Coleoptera: Scarabaeidae: Trichiinae), Julius Boos, Brett C. Ratcliffe
A New Subspecies Of Inca Clathrata (Olivier) From Trinidad, West Indies, And Range Extensions For Inca Clathrata Sommeri Westwood (Coleoptera: Scarabaeidae: Trichiinae), Julius Boos, Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Inca clathrata quesneli is described as a new subspecies from Trinidad, West Indies. New distribution records are given for Inca clathrata sommeri Westwood that extend its range northward in Mexico by approximately 200 km and southward into Colombia and Ecuador in South America west of the Andes. A brief analysis of the historical biogeography of Inca clathrata (Olivier) suggests vicariance (Andean uplift) to explain the separation of the clathrata/sommeri subspecies lineage, and dispersal to explain the separation and isolation of the quesneli lineage on Trinidad and occurrence of sommeri in Mesoamerica.
Trox Hamatus Robinson (Troginae) Using A Canthon (Scarabaeinae) Brood Ball And New Records Of North American Trox (Coleoptera: Scarabaeidae), Brett C. Ratcliffe
Trox Hamatus Robinson (Troginae) Using A Canthon (Scarabaeinae) Brood Ball And New Records Of North American Trox (Coleoptera: Scarabaeidae), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Trox hamatus Robinson was observed feeding on an abandoned Canthon brood ball in southeastern Nebraska. Although some Aphodiinae and Scarabaeinae have been reported feeding on or stealing other scarabaeine dung balls, this represents the first reported observation of this behavior for a member of the Troginae. It is suggested that the brood ball was opportunistically used by the Trox, and the event is rare. In addition, new state records are provided for Trox aequalis Say, T. atrox LeConte, T. laticollis LeConte, and T. tesselatus (LeConte).
New Combinations, Synonymy And Distribution Records For Neotropical Pentodontini And Oryctini (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe, Roger-Paul Dechambre
New Combinations, Synonymy And Distribution Records For Neotropical Pentodontini And Oryctini (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe, Roger-Paul Dechambre
University of Nebraska State Museum: Entomology Papers
During the past several years a number of new taxa of Dynastinae have been described which we feel are synonymical with existing taxa. We have also accumulated a small number of new distributional records in the Pentodontini and Oryctini. In this paper we clarify some of these taxonomic "loose ends" by proposing several new synonyms and two new combinations. Dechambre examined the type of Heterogomphus niger Endrodi, and Ratcliffe examined the types of the three Endrodi species of Strategus and Endroedianibe bozzolai Chalumeau. We also list the new distributional records we have found.
American Oryctini: Strategus Verrilli Ratcliffe Rediscovered And Described, And New Records And Comments For Other Strategus And Hispanioryctes (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Strategus verrilli Ratcliffe was rediscovered on Dominica and is here redescribed, and a neotype is designated. A second specimen of Strategus craigi Ratcliffe (from the Huachuca mountains in Arizona) is reported and provides a new country record for this species. A female of S. ajax (Olivier) is reported from the Bahamas. Strategus monguilloni Voirin is reaffirmed as a synonym of S. mandibularis Sternberg, and the correct identification of the female allotype of S. gracilis Endrodi is questioned. Hispanioryctes wittmeri Howden and EndrCidi is reported from Haiti.
Barutus Hartmanni, A New Genus And Species From Panama With A Key To The Genera Of New World Pentodontini (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe
Barutus Hartmanni, A New Genus And Species From Panama With A Key To The Genera Of New World Pentodontini (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Barutus hartmanni, a new genus and species from Volcan de Baru, Chiriqui, Panama, is described and illustrated. A key to the New World genera of Pentodontini (Scarabaeidae: Dynastinae) is provided.
New Species And Distribution Records Of Surutu From Amazonian Brazil (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe
New Species And Distribution Records Of Surutu From Amazonian Brazil (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Surutu fenni n. sp. and Surutu hesperius n. sp. are described from the Amazon Basin of Brazil. Surutu seabrai D'Andretta and Martinez is recorded from the Brazilian state of Amazonas for the first time. A key to the species is presented.
The Fourth Hylobothynus: Spanning The Amazonian Gap (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe
The Fourth Hylobothynus: Spanning The Amazonian Gap (Coleoptera: Scarabaeidae: Dynastinae), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Hylobothynus pontis Ratcliffe is described as new from Amazonian Brazil. A key and distribution map are provided for the four species in the genus Hylobothynus Ohaus.
Invertebrate Lebensspuren Of Holocene Floodplains: Their Morphology, Origin And Paleoecological Significance, Brett C. Ratcliffe, J. A. Fagerstrom
Invertebrate Lebensspuren Of Holocene Floodplains: Their Morphology, Origin And Paleoecological Significance, Brett C. Ratcliffe, J. A. Fagerstrom
University of Nebraska State Museum: Entomology Papers
Although rocks of floodplain origin are volumetrically important, they contain relatively few trace fossils; both abundance and diversity are low. Conversely, Holocene floodplain sediments locally contain abundant and diverse lebensspuren mostly produced by insects, spiders, nematodes, annelids and molluscs. At least 8 insect orders and 31 families include species that burrow in floodplain sediments and yet none of their lebensspuren are unique to this environment. Taxonomically dissimilar insects produce morphologically similar lebensspuren, and the same species, or individual, may produce very dissimilar lebensspuren. Thus, identification of tracemakers for rocks of floodplain origin is as difficult as for marine rocks. Trace …
A Matter Of Taste, Or The Natural History Of Carrion Beetles, Brett C. Ratcliffe
A Matter Of Taste, Or The Natural History Of Carrion Beetles, Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Beetles that eat writhing maggots and the decaying flesh and putrefaction of dead animals . . . what could be more macabre, repulsive, and in poor taste? [Well, possibly beetles that eat feces and have a rolling good time doing it (see my January Museum Notes).] Carrion beetles are an important part of a vast host of scavengers that are responsible for breaking down and recycling back into the ecosystem the basic elements locked inside each one of us. If it were not for these industrious scavenger beetles, we might all be surrounded by the partially decayed and mummified …
Take A Beetle To Lunch Today Or The Natural History Of Dung Beetles, Brett C. Ratcliffe
Take A Beetle To Lunch Today Or The Natural History Of Dung Beetles, Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
The appellation "dung beetles" refers to those scarab beetles that are usually found with animal feces either feeding on or depositing eggs in it. While this at first may seem like an incredibly unsavory topic, the fact remains that numerous creatures exist that feed on the waste products of other animals. And, as it turns out, it's a good thing they do.
The Scarabaeidae, or scarabs, is one of the larger families of beetles; it has 30,000 plus species worldwide and approximately 15,000 species in North America. (See my Museum Notes of March 1970.) The family is divided into subfamilies …
New Species Of Coprini (Coleoptera: Scarabaeidae: Scarabaeinae) Taken From The Pelage Of Three Toed Sloths (Bradypus Tridactylus L.) (Edentata: Bradypodidae) In Central Amazonia With A Brief Commentary On Scarab-Sloth Relationships, Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Two of three species of Scarabaeidae associated with the three toed sloth in the vicinity of Manaus, Amazonas, Brazil are described as new: Trichillum adisi and Uroxys besti. The pupa and third stage larva of T. adisi are described. Ecological aspects of the sloth-scarab associations are discussed.
Strategus Syphax (Fabr.):A Description Of The Third Instar Larva And Pupa (Coleoptera: Scarabaeidae : Dynastinae), Brett C. Ratcliffe, Fortune Chalumeau
Strategus Syphax (Fabr.):A Description Of The Third Instar Larva And Pupa (Coleoptera: Scarabaeidae : Dynastinae), Brett C. Ratcliffe, Fortune Chalumeau
University of Nebraska State Museum: Entomology Papers
The third instar larva and pupa of Strategus syphax (Fabr.) are described, and a key is presented for the known larvae of the genus Strategus.
Notes On The Biology Of Euphoriaspis Hirtipes (Horn) And Descriptions Of The Larva And Pupa (Coleoptera: Scarabaeidae), Brett C. Ratcliffe
Notes On The Biology Of Euphoriaspis Hirtipes (Horn) And Descriptions Of The Larva And Pupa (Coleoptera: Scarabaeidae), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Euphoriaspis hirtipes (Horn) is a myrmecophilous scarab that occurs only in portions of the prairie region of the central United States. The immature stages are passed within the thatch nests of the genus Formica. The eggs remain unknown, but the third instar larva and the pupa are described and illustrated.
A Revision Of The Genus Strategus (Coleoptera: Scarabaeidae), Brett C. Ratcliffe
A Revision Of The Genus Strategus (Coleoptera: Scarabaeidae), Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
The New World genus Strategus Kirby is here defined and revised for the first time. Eight species are described as new: S. atlanticus, S. caymani, S. craigi, S. hipposiderus, S. howdeni, S. longichomperus, S. symphenax, and S. tarquinius; 12 new junior synonyms are established (including the rejection of six previously valid species); one species is raised from synonymy; and two new replacement names are proposed. Strategus now contains one fossil species and 31 valid extant species. A key to the males and females of all the species is provided for the first time. All taxa are described or redescribed …
Collecting Slime Flux Feeding Coleoptera In Japan, Brett C. Ratcliffe
Collecting Slime Flux Feeding Coleoptera In Japan, Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Sappy wounds of injured or diseased trees entice a wide variety of insects. Carter (1945) stated that when fluxing is prolific or long continued, air-borne bacteria, yeasts, and fungi contaminate the oozing sap, ferment it and produce the material called slime flux. Apparently the oozing flux is toxic to the flux site and so prevents callusing by the tree. Consequently, the same tree usually can be a good collecting site for insects from year to year. My stay in Japan spanned four years, and collecting at flux sites was one of the most fruitful areas of endeavor. As soon as …
A Comparison Of Silphids Taken From Covered And Uncovered Carrion (Coleoptera : Silphidae), Brett C. Ratcliffe, Robert J. Luedtke
A Comparison Of Silphids Taken From Covered And Uncovered Carrion (Coleoptera : Silphidae), Brett C. Ratcliffe, Robert J. Luedtke
University of Nebraska State Museum: Entomology Papers
As an extension of the silphid research by the senior author, an experiment was conducted to ascertain the differences, if any, in silphid species that would be attracted by placing covered and uncovered animal carcasses in the field. A review of the literature indicated that nothing has been published in this regard.
In eastern Nebraska silphids are very active in the spring, their numbers being greater at this time of year than at any other. University of Nebraska Entomology Museum records show that 14 species have been taken in Lancaster County.
Two tests were conducted at Steven's Creek, three miles …