Results 171 to 180 of about 972 (193)
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Sandpits provide critical refuge for bees and wasps (Hymenoptera: Apocrita)
Journal of Insect Conservation, 2012Evidence-based conservation allows the evaluation of both the collateral benefits and the drawbacks of a wide range of human activities, like quarrying. In this study, the community structure of bees and wasps (Hymenoptera:Apocrita) in Central European sandpits was investigated, focusing on the changes caused by quarrying cessation and technical ...
Petr Heneberg +2 more
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Journal of Insect Physiology, 2001
Vitellin (VN) and vitellogenin (VG) profiles were analyzed in monogyne and polygyne colonies of the red imported fire ant, Solenopsis invicta. Non-denaturing and SDS-polyacrylamide gel electrophoresis (PAGE) analyses indicated that the native VN was likely 350 kDa and comprised of two subunits in the molecular size range of 170-185 kDa.
D K., Lewis +5 more
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Vitellin (VN) and vitellogenin (VG) profiles were analyzed in monogyne and polygyne colonies of the red imported fire ant, Solenopsis invicta. Non-denaturing and SDS-polyacrylamide gel electrophoresis (PAGE) analyses indicated that the native VN was likely 350 kDa and comprised of two subunits in the molecular size range of 170-185 kDa.
D K., Lewis +5 more
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Zoologica Scripta, 1999
Classification and morphological and molecular evidence supporting relationships of Mymarommatidae (Mymarommatoidea) and the 20 families of Chalcidoidea are reviewed. Five autapomorphies support monophyly of Mymarommatoidea, at least two autapomorphies support monophyly of Chalcidoidea, and three synapomorphies support a sister‐group relationship ...
GarY. A. P. Gibson +2 more
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Classification and morphological and molecular evidence supporting relationships of Mymarommatidae (Mymarommatoidea) and the 20 families of Chalcidoidea are reviewed. Five autapomorphies support monophyly of Mymarommatoidea, at least two autapomorphies support monophyly of Chalcidoidea, and three synapomorphies support a sister‐group relationship ...
GarY. A. P. Gibson +2 more
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New fossil wasps (Hymenoptera, Apocrita) from the Middle Jurassic of China
Insect Systematics & Evolution, 2015Two new species,Symphytopterus gracilersp. nov. of the family Ephialtitidae andPraeaulacus byssinussp. nov. of the family Praeaulacidae, are described and illustrated from the late Middle Jurassic of Jiulongshan Formation at Daohugou in Inner Mongolia, China. Based on new information onS. gracilersp. nov. andP. byssinussp.
Menglun Wang, Longfeng Li, Chungkun Shih
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Invertebrate Systematics, 2006
Despite recent efforts, hypothesised phylogenetic relationships among apocritan wasps remain unresolved. In this study, molecular analyses were employed to analyse a dataset that included the 16S, the 28S and the COI genes of 87 apocritan representatives. Partial sequences of the 18S gene were also generated and added to this dataset.
Dowton, Mark P, Castro, Lyda
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Despite recent efforts, hypothesised phylogenetic relationships among apocritan wasps remain unresolved. In this study, molecular analyses were employed to analyse a dataset that included the 16S, the 28S and the COI genes of 87 apocritan representatives. Partial sequences of the 18S gene were also generated and added to this dataset.
Dowton, Mark P, Castro, Lyda
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Hymenoptera (Insecta) of Plummers Island, Maryland: Symphyta and Selected Families of Apocrita
Bulletin of the Biological Society of Washington, 2008ABSTRACT Ninety-one species of sawflies (Hymenoptera: Symphyta) are recorded for Plummers Island, Maryland. Records are from collections during the periods of 1902–1924, 1958–1972, and 2005. An estimated 97 species currently may occur on the Island. Indications are that species composition has changed through the years.
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2015
Data on flight parameters of apocritans of different size was obtained and analyzed. It was shown that reduction in body size leads to changes in wing loading and elongation, wingbeat frequency, stroke amplitude, and thrust. Our data could be useful for understanding of adaptive changes of insect flight in the course of miniaturization.
Farisenkov, S.E. +2 more
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Data on flight parameters of apocritans of different size was obtained and analyzed. It was shown that reduction in body size leads to changes in wing loading and elongation, wingbeat frequency, stroke amplitude, and thrust. Our data could be useful for understanding of adaptive changes of insect flight in the course of miniaturization.
Farisenkov, S.E. +2 more
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Alcheringa: An Australasian Journal of Palaeontology, 2022
Longfeng Li +4 more
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Longfeng Li +4 more
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Two new wasps from mid-Cretaceous Myanmar amber (Hymenoptera: Apocrita)
Cretaceous Research, 2022Longfeng Li +4 more
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