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Articles 9541 - 9570 of 11440

Full-Text Articles in Entomology

A New Subspecies Of Sandia Macfarlandi From The Sierra Madre Oriente Of Mexico (Lepidoptera: Lycaenidae), Kurt Johnson Mar 1988

A New Subspecies Of Sandia Macfarlandi From The Sierra Madre Oriente Of Mexico (Lepidoptera: Lycaenidae), Kurt Johnson

Insecta Mundi

Sandia m. madreoriente is distinguished from the nominate of monobasic Sandia which occurs from montane southwest Texas northwestward to northern New Mexico.


The Status Of The Names Clytus Horridus Leconte And Clytus Leucozonus Castelnau & Gory (Coleoptera: Cerambycidae), Richard L. Hoffman Mar 1988

The Status Of The Names Clytus Horridus Leconte And Clytus Leucozonus Castelnau & Gory (Coleoptera: Cerambycidae), Richard L. Hoffman

Insecta Mundi

Much of the confusion that has plagued the two species considered here originated from the failure of previous authors to examine pertinent type material. I made a special effort to examine types of as many names as readily available, and in addition appealed to a number of museums and individuals for the loan of (or information about) material of horridus and muricatulus in order to account for the range and variation of these taxa. C. horridus, although widely distributed, is by no means common and many - even large - collections have few if any specimens of it.

Material …


An Annotated Catalog And Summary Of Bionornics Of Blister Beetles Of The Genus Psalydolytta (Coleoptera: Meloidae), Richard B. Selander Mar 1988

An Annotated Catalog And Summary Of Bionornics Of Blister Beetles Of The Genus Psalydolytta (Coleoptera: Meloidae), Richard B. Selander

Insecta Mundi

Information on the taxonomy, anatomy, and bionomics of the species of Psalydolytta Peringuey is presented and summarized. Psalydolytta testaceoapicalis Pic, described from Guinea, is placed in the synonymy of P. cineracea (Maklin) (new synonymy). The genus has a disjunct Ethiopian-Indian distribution (42 species in Africa, 10 in India). Adults appear toward the end of the rainy season, are generally nocturnal, and feed largely on flowers and developing grains of wild and cultivated grasses. Adults attracted to lights are sometimes a nuisance because of their ability to produce blisters on human skin. The larva of the Indian P. rouxi (Castelnau) has …


A Revision Of The New World Species Of Cryptolestes Ganglbauer (Coleoptera: Cucujidae: Laemophloeinae), M. C. Thomas Mar 1988

A Revision Of The New World Species Of Cryptolestes Ganglbauer (Coleoptera: Cucujidae: Laemophloeinae), M. C. Thomas

Insecta Mundi

The New World species of Cryptolestes Ganglbauer are revised and keys, diagnoses, descriptions, and illustrations are provided for the 13 non-economic species. Six stored products species of the genus are also keyed and illustrated. Two species, Laemophloeus pubescens Casey and L. bicolor Chevrolat, are reassigned to Cryptolestes. Eight new species are described: C. dissimulatus (southwestern United States); C. dybasi (Florida); C. mexicanus (Mexico and Guatemala); C. capillulus (Brazil); C. spatulifer (Argentina); C. trinidadensis (Trinidad); C. ampiyacus (Peru); and C. calabozus (Venezuela). Cryptolestes uncicornis (Reitter) is revived from synonymy under C. punctatus (LeConte), C. schwarzi (Casey) is revived from synonymy …


Replacement Name For Mitoura Siva Rhodope Clench (1981) [Nec Godman & Salvin, 1887] (Lepidoptera: Lycaenidae), Kurt Johnson Mar 1988

Replacement Name For Mitoura Siva Rhodope Clench (1981) [Nec Godman & Salvin, 1887] (Lepidoptera: Lycaenidae), Kurt Johnson

Insecta Mundi

The extant holotype of Thecla rhodope G & S (Sonora, Mexico) is antonymous to characters attributed to the taxon by Clench. M. s. clenchi is described from Clench's Arizona study series; the status of T. rhodope is left unresolved.


A Key To Species Of The Genus Primeuchroeus And Descriptions Of New Species (Hymenoptera: Chrysididae), Richard M. Bohart Mar 1988

A Key To Species Of The Genus Primeuchroeus And Descriptions Of New Species (Hymenoptera: Chrysididae), Richard M. Bohart

Insecta Mundi

A key is given to 32 species of Primeuchroeus from the Australian, Oriental and Ethiopian Regions. New species are indiacus from India, and 6 species from Australia. The latter are cardaleae, commoni, gressitti, horningi, thorpi, and uqua.


Insecta Mundi Volume 2 Covers Mar 1988

Insecta Mundi Volume 2 Covers

Insecta Mundi

Volume 2 covers


Environmental Effects On Remating In Drosophila Melanogaster, Lawrence G. Harshman, Ary A. Hoffman, Timothy Prout Mar 1988

Environmental Effects On Remating In Drosophila Melanogaster, Lawrence G. Harshman, Ary A. Hoffman, Timothy Prout

Lawrence G. Harshman Publications

The effects of density and food on remating were investigated using Drosophila melanogaster. The frequency of remating was unaffected by density for some combinations of fly strains but was reduced at low relative densities for other combinations. Until females had used most of their stored sperm, remating was less likely when food was absent or contact with food was prevented. Food availability had little effect on the incidence of remating once stored sperm were depleted and had no effect on initial virgin mating frequency. This study indicates that environmental factors can have a substantial direct influence on the frequency …


A New Species Of Aphodius (Coleoptera: Scarabaeidae: Aphodiinae) From Nebraska, Brett C. Ratcliffe Feb 1988

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 Feb 1988

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).


Steinernematid And Heterorhahditid Nematodes For Control Of Larval European Chafers And Japanese Beetles (Coleoptera: Scarabaeidae) In Potted Yew, Robert J. Wright, M. G. Villani, F. Agudelo-Silva Feb 1988

Steinernematid And Heterorhahditid Nematodes For Control Of Larval European Chafers And Japanese Beetles (Coleoptera: Scarabaeidae) In Potted Yew, Robert J. Wright, M. G. Villani, F. Agudelo-Silva

Department of Entomology: Faculty Publications

Four species of entomogenous nematodes [Steinernema feltiae (Filipjev) [=Neoaplectana carpocapsae Weiser] ('All' strain), S. glaseri (Steiner), Heterorhabditis heliothidis (Khan, Brooks & Hirschmann), and Heterorhabditis sp. ('Holland' strain)] were compared with two insecticides (chlorpyrifos and isofenphos) for control of third- (last-) instar larval Japanese beetles (Popillia japonica Newman) and European chafers [Rhizotrogus majalis (Razoumowsky)] in potted Japanese yew (Taxus cuspidate Siebold & Zuccarini). Efficacy was evaluated 17-21 d after treatment. Heterorhabditis sp. ('Holland' strain) at 92 nematodes per cm2 of soil surface and H. heliothidis at 192 nematodes per cm2 provided >90% control of …


The Food Plants Of Some 'Primitive' Pentatomoidea (Hemiptera: Heteroptera)., Carl W. Schaefer Jan 1988

The Food Plants Of Some 'Primitive' Pentatomoidea (Hemiptera: Heteroptera)., Carl W. Schaefer

ANSC Articles

The food plants of the Cydnidae (Cydninae, Sehirinae, Scaptocorinae, Amnestinae, Garsauriinae, Thaumastellinae, Parastrachiinae, Corimelaeninae), Plataspidae, Megarididae, Cyrtocoridae, and Lestoniidae, compiled from the literature, are discussed. So too are the habitats of these insects, most of which live on or are associated with the ground. This association supports an earlier assertion that life on the ground was the way of lile of the early hemipterans. Most of these groups are polyphagous. However, the Plataspidae feed largely upon legumes, the Scaptocorinae upon the roots of Gramineae, some Cydninae also upon legumes, and many Sehirinae upon members of the advanced dicot subclass Asteridae. …


Native American Plant Hosts Of Asphondylia Websteri (Diptera: Cecidomyiidae), Raymond J. Gagne, William M. Woods Jan 1988

Native American Plant Hosts Of Asphondylia Websteri (Diptera: Cecidomyiidae), Raymond J. Gagne, William M. Woods

USDA Systematic Entomology Laboratory

Asphondylia websteri Felt is reported for the first time from native American hosts, Parkinsonia and jojoba. Previously, this apparently native American gall midge was known only from alfalfa and guar, two species exotic to North America. Such a wide disparity of hosts is otherwise unknown for North American Asphondylia spp. This discovery excludes A. websteri from consideration as a biocontrol agent of Parkinsonia aculeata in Australia.


Douglas-Fir Beetle (Dendroctonus Pseudotsugae Hopkins, Coleoptera : Scolytidae) Brood Production On Douglas-Fir Defoliated By Western Spruce Budworm (Choristoneura Occidentalis Freeman, Lepidoptera : Tortricidae) In Logan Canyon, Utah, S E. Fredricks, M J. Jenkins Jan 1988

Douglas-Fir Beetle (Dendroctonus Pseudotsugae Hopkins, Coleoptera : Scolytidae) Brood Production On Douglas-Fir Defoliated By Western Spruce Budworm (Choristoneura Occidentalis Freeman, Lepidoptera : Tortricidae) In Logan Canyon, Utah, S E. Fredricks, M J. Jenkins

The Bark Beetles, Fuels, and Fire Bibliography

Douglas-fir beetle brood production was studied on Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) trees defoliated by the western spruce budworm between 1983 and 1985. Tallies were made of the number of attacks, total length and number of egg galleries, number of eggs deposited, number of larval tunnels, number of pupal chambers, and number of emerging beetles (per female and per unit area). Data analysis showed no significant differences among the three years studied. The number of emerging beetles per female parent was 0.59, and emergence per 90 cm2 was 2.32 beetles. Egg, larval, and pupal survivals were 47.5%, 30.0%, and 15.5%, …


Lodgepole Pine Vigor, Regeneration, And Infestation By Mountain Pine Beetle Following Partial Cutting On The Shoshone National Forest, Wyoming, Gene D. Amman, Gene D. Lessard, Lynn A. Rasmussen, Curtis G. O'Neil Jan 1988

Lodgepole Pine Vigor, Regeneration, And Infestation By Mountain Pine Beetle Following Partial Cutting On The Shoshone National Forest, Wyoming, Gene D. Amman, Gene D. Lessard, Lynn A. Rasmussen, Curtis G. O'Neil

The Bark Beetles, Fuels, and Fire Bibliography

Lodgepole pine stands were thinned in the Shoshone National Forest of northwestern Wyoming in 1979 and 1980 using different forms of partial cutting. Average losses of trees 5 inches diameter at breast height and larger to mountain pine beetles during the 5 years following thinning ranged from less than 1 percent in spaced thinnings to 7.4 percent in the 12-inch diameter limit cut, compared to 26.5 percent in check stands. Residual trees increased radial growth significantly, but change in growth efficiency is slow. Regeneration 5 years after thinning ranged between 1,160 and 3,560 seedlings per acre, with pine being favored …


The Origin Of Chubutolithes Ihering, Ichnofossils From The Eocene And Oligocene Of Chubut Province, Argentina, Thomas M. Bown, Brett C. Ratcliffe Jan 1988

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. …


A Seasonal Comparison Of Metabolic And Water Loss Rates Of Three Species Of Grasshoppers, Lynn J. Forlow, James A. Macmahon Jan 1988

A Seasonal Comparison Of Metabolic And Water Loss Rates Of Three Species Of Grasshoppers, Lynn J. Forlow, James A. Macmahon

Green Canyon Environmental Research Area, Logan Utah

1. 1. Seasonal differences in metabolic and water loss rates were examined in three related species of grasshoppers collected from shrub-steppe communities in Utah: Arphia conspersa, A. pseudonietana and

2. 2 cohorts of Trimerotropis pallidipennis. 2. No significant differences (P = 0.05) in metabolic rates were observed between seasons (early vs late), between genera (Arphia vs Trimerotropis) nor among species.

3. 3. Early season (spring) grasshoppers had a higher (but non-significant) mean water loss rate (±X ± SD in mg.g−1-hr−1) (4.81 ± 1.53) than late season (summer) grasshoppers (4.43 ± 1.43).

4. 4. Among species, early season A. conspersa had …


Spermiogenesis Of Eupyrene Sperm In Prepupae"} Pupae"} And Adults Of Heliothis Virescens (Lepidoptera: Noctuidae): An Ultrastructural Study, Leo E. Lachance, Geneva Olstad Jan 1988

Spermiogenesis Of Eupyrene Sperm In Prepupae"} Pupae"} And Adults Of Heliothis Virescens (Lepidoptera: Noctuidae): An Ultrastructural Study, Leo E. Lachance, Geneva Olstad

Entomology Papers from Other Sources

We have examined the ultrastructure of post meiotic eupyrene sperm maturation in testes of prepupae, pupae, and adult Heliothis virescens (F.) males. Emphasis was placed on the structures present in the elongating sperm tail. In each young spermatid, each cell has a nucleus, acrosome derivative, and numerous mitochondria in a large volume of cytoplasm. These mitochondria coalesce to form a body, the nebenkern. As the sperm cell begins to elongate, the nebenkern divides into two mitochondrial derivatives (MDs) of unequal size. The MDs have an outer and inner membrane, and as they elongate and coil in the sperm tail, cristae …


Revision Of The Schausi Group Of Anastrepha Schiner (Diptera: Tephritidae), With A Discussion Of The Terminology Of The Female Terminalia In The Tephritoidea, Allen L. Norrbom, Ke Chung Kim Jan 1988

Revision Of The Schausi Group Of Anastrepha Schiner (Diptera: Tephritidae), With A Discussion Of The Terminology Of The Female Terminalia In The Tephritoidea, Allen L. Norrbom, Ke Chung Kim

Entomology Papers from Other Sources

Monophyly of a group of four species of Anastrepha is proposed based on characters of the head and the male terminalia. The group includes A. schausi Aldrich; A. Jernandezi Caraballo; A. hermosa Norrbom, n. sp.; and A. bellicauda Norrbom, n. sp. Sexual dimorphism in these species is noted. A discussion of morphological terminology in the Tephritoidea, especially concerning female terminalia, is presented.


Descriptions Of Pupae Of South American Robber Flies (Diptera: Asilidae), D. Steve Dennisi, Lloyd Knutson Jan 1988

Descriptions Of Pupae Of South American Robber Flies (Diptera: Asilidae), D. Steve Dennisi, Lloyd Knutson

Entomology Papers from Other Sources

The pupae of four South American species of robber flies, Diogmites vulgaris Carrera, Mallophora ruficauda (Wiedemann), Mallophora sylverii Macquart, and Triorla striola (F.), are described and illustrated. The pupae of these species are compared morphologically with those of North American species of the same genera. A key to pupae of Asilidae at the subfamily level is provided. Biological notes associated with the specimens examined and with those of Pseudorus distendens (Wiedemann) indicate that the larvae prey upon immature stages of Scarabaeidae (Dyscinetus rugifrons LeConte for D. vulgaris and M. sylverii, Cyclocephala signaticollis Burmeister for M. ruficauda, and a …


Comparative Notes On The Biology And Development Of Epeolus Compactus Cresson., A Cleptoparasite Of Colletes Kincaidii Cockerell (Hymenoptera: Anthophoridae, Colletidae), P. F. Torchio, D. J. Burdick Jan 1988

Comparative Notes On The Biology And Development Of Epeolus Compactus Cresson., A Cleptoparasite Of Colletes Kincaidii Cockerell (Hymenoptera: Anthophoridae, Colletidae), P. F. Torchio, D. J. Burdick

Entomology Papers from Other Sources

The biology of the nomadine bee, Epeolus compactus Cresson, is described based on composite notes taken from field, laboratory, and greenhouse studies of the host bee, Colletes kincaidii Cockerell. Details of Epeolus egg deposition are described and compared with other known noma dine bees. We document the release of a glandular secretion during egg deposition by E. compactus which dissolves the polyester host cell lining on contact. Late embryogenesis and hatching of Epeolus are described and adaptive features are discussed. The cleptoparasitic habits of the first instar are outlined, and anatomical differences expressed by various ins tars are compared. Methods …


The Origin Of Chubutolithes Ihering, Ichnofossils From The Eocene And Oligocene Of Chubut Province, Argentina, Thomas M. Bown, Brett C. Ratcliffe Jan 1988

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. …


A Monograph Of The Genus Polyphylla Harris In America North Of Mexico (Coleoptera: Scarabaeidae: Melolonthinae), Ronald M. Young Jan 1988

A Monograph Of The Genus Polyphylla Harris In America North Of Mexico (Coleoptera: Scarabaeidae: Melolonthinae), Ronald M. Young

Bulletin of the University of Nebraska State Museum (1924–2023)

The North American species of the genus Polyphylla Harris, 1841, are defined and revised for the first time since Fall (1928). All name bearing types were examined except those of P. oklahomensis Hatch and P. subvittata LeConte (synonyms of P. hammondl), which are lost. A lectotype is designated for P. gracilis Horn, and neotypes for P. decemlineata (Say), P. occidentalis (L.), and P. variolosa (Hentz). New synonyms of P. decemlineata are P. comstockiana von Bloeker, P. matrona Casey, and P. potsiana Casey. New synonyms of P. crinita …


The Neurotoxic Effects Of A Sublethal Malathion Concentrations (P.O.) On Musca Domestica, Reid Kirby Jan 1988

The Neurotoxic Effects Of A Sublethal Malathion Concentrations (P.O.) On Musca Domestica, Reid Kirby

Student Scholarship

House flies (Musca domestica) were tested for behavioral disturbances due to AChE reduction from malathion p.o .. The flies occupied a habitat where the water supply was contaminated to a 0.001% concentration of malathion for a 24-hour period. The behavior disturbances were evaluated by mean movement and comparison of ethograms. Data indicates that such a dosage, has a significant effect on fly behavior, with no direct lethality. Page 2 Reid


Department Of Entomology Newsletter - No. 5, Part 2, 1988 Jan 1988

Department Of Entomology Newsletter - No. 5, Part 2, 1988

Hexapod Herald and Other Entomology Department Newsletters

Activities of the Department

Extension News, Fred Baxendale

Teaching News, Ack Jones

Research News, Z. B. Mayo

Museum News, Brett C. Ratcliffe

Lawrence Bruner Entomology Club News, Wes Watson

South Central Research and Extension News, Leroy L. Peters

Panhandle Research and Extension News, Gary L. Hein

West Central Research and Extension News, John B. Campbell

Bortbeast Research and Extension News, John F. Witkowski

Linnaean Games Team News, Larry Godfrey

Roger Gold Moves Up

Recent Retirements

FACULTY / Wayne Kramer Bob Wright Jack Campbell Cliff Walstrom Tony Joern Larry Godfrey Leroy Peters Gary Hein Mark Harrell Art Hagen

TECHNICAL AID, CLERICAL …


Hydrocarbon For Identification And Phenetic Comparisons: Cockroaches, Honey Bees, And Tsetse Flies, David A. Carlson Jan 1988

Hydrocarbon For Identification And Phenetic Comparisons: Cockroaches, Honey Bees, And Tsetse Flies, David A. Carlson

Entomology Papers from Other Sources

The hydrocarbon components of Asian and German cockroaches showed consistent differences by gas chromatography (GC) that did not depend on geographic origin, sex or age, and that did reliably identify individuals of these otherwise morphologically similar species. European honey bee workers and drones showed consistent GC patterns. Race-specific similarities in GC patterns were present in Africanized workers and drones from Central and South America. Principal components analysis separated data from different races. Comb waxes reflected the genetic ancestry of the workers that produced that wax. GC data was used to construct phenetic comparisons of 26 species and subspecies of tsetse …


Adoption Of Newly-Mated Queens: A Mechanism For Proliferation And Perpetuation Of Polygynous Red Imported Fire Ants, B. Michael Glancey, Clifford S. Lofgren Jan 1988

Adoption Of Newly-Mated Queens: A Mechanism For Proliferation And Perpetuation Of Polygynous Red Imported Fire Ants, B. Michael Glancey, Clifford S. Lofgren

Entomology Papers from Other Sources

The polygynous form of the red imported fire ant, Solenopsis invicta Buren was first reported from Mississippi in 1973; however, the source of the numerous fertile queens in polygynous colonies has remained an enigma. In 1987, 400 queens from a mating flight were marked with a durable paint and released in an area heavily populated with the polygynous form. None were recaptured after one week, but 9 months later, 4 clearly-marked queens were found in a nest 65 meters from their release point. This finding clearly points to adoption. About 5 weeks later, 37 of 107 fertile queens collected from …


Use Of Chemical Characters In Defining Populations Of Fire Ants, Robert K. Vander Meer, Clifford S. Lofgren Jan 1988

Use Of Chemical Characters In Defining Populations Of Fire Ants, Robert K. Vander Meer, Clifford S. Lofgren

Entomology Papers from Other Sources

The fire ants, Solenopsis invicta and S. richteri, were accidentally imported into the United States in the first half of this century from South America. In their adopted habitat the imported fire ants have thrived causing considerable medical and agricultural problems in the nine widely infested states of the south and southeast. The red imported fire ant, S. invicta was considered the dominant ant in the infested areas, having displaced the black imported fire ant, S. richteri, into a small enclave in north- eastern Mississippi. However, a large reproductively viable S. invicta/S. richteri hybrid population was recently …


Do Ant Brood Pheromones Exist?, Laurence Morel, Robert K. Vander Meer Jan 1988

Do Ant Brood Pheromones Exist?, Laurence Morel, Robert K. Vander Meer

Entomology Papers from Other Sources

A brood pheromone is a chemical or mixture of chemicals released by immature stages that elicits a behavioral response in conspecific adults. The current literature devoted to brood pheromones in several ant species does not prove the existence of such a pheromone or even of brood-specific chemicals. The possibility of a food response or a nestmate recognition response, two of the most confounding factors, has not been eliminated. Two alternative hypotheses involving brood behavior, morphology, cuticular chemicals, and associative learning are proposed.


Diets Of Darkling Beetles (Coleoptera: Tenebrionidae) Within A Shrub-Steppe Ecosystem, L. E. Rogers, N. E. Woodley, J. K. Sheldon, P. A. Beedlow Jan 1988

Diets Of Darkling Beetles (Coleoptera: Tenebrionidae) Within A Shrub-Steppe Ecosystem, L. E. Rogers, N. E. Woodley, J. K. Sheldon, P. A. Beedlow

Entomology Papers from Other Sources

The diets of 13 species of darkling beetles inhabiting shrub-steppe communities of southcentral Washington were analyzed. Forty-seven vascular plant species, including 7 grasses, 34 forbs, and 6 shrubs, were fed upon. Cluster analysis was used to determine the extent of overlap in food habits among beetle species. The beetle species were separated into five food preference groups. Partitioning of food resources may act to refine niche space of these beetles.