Results 71 to 80 of about 18,441 (270)

Phylogenomics and biogeography of the cleptoparasitic bee genus Triepeolus Robertson (Hymenoptera: Apidae), with a revised subgeneric classification of Triepeolus and its sister genus, Epeolus Latreille Filogenómica y biogeografía del género de abejas cleptoparásitas Triepeolus Robertson (Hymenoptera: Apidae), con una clasificación subgenérica revisada para Triepeolus y su género hermano, Epeolus Latreille

open access: yesSystematic Entomology, Volume 51, Issue 1, January‐March 2026.
A subgeneric classification is proposed for Triepeolus—the second‐largest genus of cleptoparasitic apid bees in the world—and its sister genus Epeolus, with support from a newly presented dated phylogeny. Phylogenomic analysis based on ultraconserved elements revealed strong support for the monophyly of Triepeolus, which diverged from Epeolus sometime ...
Thomas M. Onuferko   +2 more
wiley   +1 more source

Specific immunotherapy in Albanian patients with anaphylaxis to hymenoptera venoms [PDF]

open access: yes, 2002
Background: Severe allergic reactions during rush-specific immunotherapy (Rush-SIT) may occur in the treatment of hymenoptera sting allergy. The objective of the present study was to examine the characteristics of allergic reactions during Rush-SIT in a ...
Dinh, Q. Thai   +6 more
core  

Diversity of Social Wasps on Semideciduous Seasonal Forest Fragments with Different Surrounding Matrix in Brazil [PDF]

open access: yes, 2011
We surveyed social wasps (Polistinae) present in forest fragments of northwest of São Paulo state with different surroundings composed of a matrix of citrus crops and sugarcane in the expectation that the former matrix would be more diverse than the ...
Fernando Barbosa Noll   +1 more
core   +1 more source

Avispas sociales (Vespidae: polistinae) del suroccidente colombiano, Departamento de Nariño

open access: yesActa Biológica Colombiana, 1996
The list of 43 species of social wasps (Hymenoptera: Vespidae: Polistinae) of west of Nariño, Colombia is present with data about elevation range and habitat preferences. The richness decrease fastly with elevation.
Carlos E. Sarmiento M.   +1 more
doaj  

Study on Floral Syndrome and Breeding System of an Endangered Species Rhododendron nymphaeoides

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
This study divided the flowering process of Rhododendron nymphaeoides into five periods and systematically investigated the floral traits, pollen morphology and viability, optimal solid media for in vitro pollen germination, storage temperature screening, pollen–ovule ratio and hybridization index, stigma receptivity, the effects of different ...
Jun Luo   +9 more
wiley   +1 more source

A remarkable new species of Zethus Fabricius (Hymenoptera, Vespidae, Eumeninae) from Costa Rica [PDF]

open access: yes, 2009
Porter, new species, is described from Costa Rica. It forms a species group of its own, unique in its grotesquely enlarged male mandibles and reduced clypeus, single mid tibial spur, and in having a medio-apical bulge on the second sternite.
Porter, Charles C.
core  

Large Scale Homing in Honeybees [PDF]

open access: yes, 2015
Honeybee foragers frequently fly several kilometres to and from vital resources, and communicate those locations to their nest mates by a symbolic dance language.
Pahl, Mario   +3 more
core   +1 more source

Polymorphism in Stelopolybia Areata (Hymenoptera, Vespidae) [PDF]

open access: yesPsyche: A Journal of Entomology, 1974
Polymorphism in the social Hymenoptera has been defined as the occurrence within a single colony of two or more distinct morphological forms, or castes, belonging to the same sex (Wilson 953). Wilson (953) has pointed out that polymorphism arises out of the occurrence of allometry (differential rates of growth o.f two parts of the body) over a ...
Robert L. Jeanne, Robert Fagen
openaire   +2 more sources

Pond frog as a predator of hornet workers: High tolerance to venomous stings

open access: yesEcosphere, Volume 16, Issue 12, December 2025.
Abstract Some animals use stingers to repel attackers, and some predators have evolved tolerance to such stings, enabling them to consume venomous prey. For example, social wasps, such as hornets, use modified ovipositors as venomous stingers to inject venom, which can cause intense pain in humans.
Shinji Sugiura
wiley   +1 more source

Don’t Spray the Wasps! Using \u3ci\u3ePolistes\u3c/i\u3e Paper Wasps for Pest Management in the Home Garden [PDF]

open access: yes, 2011
Pest control poses a challenge to all gardeners, especially those wishing to use organic practices. We examined the potential use of Polistes paper wasps as a bio-control agent in the organic backyard garden.
Goldsmith, Laura, Henshaw, Michael
core   +1 more source

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