JOURNAL OF HYMENOPTERA RESEARCH

A Review and Updated Classification of Pollen Gathering Behavior in Bees (Hymenoptera, Apoidea)

The ants of Ohio (Hymenoptera, Formicidae): an updated checklist

A morphological, biological and molecular approach reveals four cryptic species of Trissolcus Ashmead (Hymenoptera, Scelionidae), egg parasitoids of Pentatomidae (Hemiptera)

Scelionidae (Hymenoptera) parasitizing eggs of Bagrada hilaris (Hemiptera, Pentatomidae) in Mexico

Surveys of stink bug egg parasitism in Asia, Europe and North America, morphological taxonomy, and molecular analysis reveal the Holarctic distribution of Acroclisoides sinicus (Huang & Liao) (Hymenoptera, Pteromalidae)

The Eumeninae (Hymenoptera, Vespidae) of Hong Kong (China), with description of two new species, two new synonymies and a key to the known taxa

The attraction of Tremex apicalis (Hymenoptera, Siricidae, Tremecinae) and its parasitoid Ibalia japonica (Hymenoptera, Ibaliidae) to the fungus Cerrena unicolor

Effect of season and behavioral activity on the hypopharyngeal glands of three honey bee Apis mellifera L. Races under stressful climatic conditions of central Saudi Arabia

A new genus and three new species of Neotropical sawflies (Hymenoptera, Tenthredinidae) from Costa Rica, with host plants and life history notes

A new species of Baeomorpha (Hymenoptera, Rotoitidae) from mid-Cretaceous Burmese amber

Bumble bees (Hymenoptera: Apidae: Bombus terrestris) collecting honeydew from the giant willow aphid (Hemiptera: Aphididae)

Notes on the biology, morphology and generic placement of “Hellwigia” obscura Gravenhorst (Hymenoptera: Ichneumonidae, Ophioninae)

Proterosceliopsidae: A new family of Platygastroidea from Cretaceous amber

New genera of meliturguline bees from Saudi Arabia and Persia, with notes on related genera and a key to the Arabian fauna (Hymenoptera: Andrenidae)

Molecular phylogeny of Trissolcus wasps (Hymenoptera, Scelionidae) associated with Halyomorpha halys (Hemiptera, Pentatomidae)

Alate gyne of the ant Dolichoderus quadripunctatus (L.) (Hymenoptera, Formicidae) follows foraging trail to aphids

First report of Telenomus remus parasitizing Spodoptera frugiperda and its field parasitism in southern China

Ants trapped for years in an old bunker; survival by cannibalism and eventual escape

Chromosomes of Eupristina verticillata Waterston, 1921 and an overview of known karyotypes of chalcid wasps of the family Agaonidae (Hymenoptera)

DNA barcoding of rhopalosomatid larvae reveals a new host record and genetic evidence of a second species of Rhopalosoma Cresson (Hymenoptera, Rhopalosomatidae) in America north of Mexico

Evolution of glandular structures on the scape of males in the genus Aphelinus Dalman (Hymenoptera, Aphelinidae)

Validation of Distatrix pandora Grinter, 2009 (Hymenoptera: Braconidae, Microgastrinae)

Monotypic no more – a new species of the unusual genus Schwarzia (Hymenoptera, Apidae, Biastini)

Revision of the North American species of Promicrogaster (Hymenoptera, Braconidae, Microgastrinae), with an updated key to all described species in North and Meso America

Flower use by late nineteenth-century orchid bees (Eufriesea surinamensis, Hymenoptera, Apidae) nesting in the Catedral Basílica Santa María la Antigua de Panamá

Plagiolepis alluaudi Emery, 1894, a globally spreading exotic ant (Hymenoptera, Formicidae) newly recorded from Tenerife (Canary Islands, Spain)

First contribution to the study of the genus Micatagla Argaman, 1994 (Hymenoptera, Bradynobaenidae, Apterogyninae) in the fauna of Saudi Arabia, with the description of four new species

On the taxonomy of Heterarthrus (Hymenoptera, Tenthredinidae), with a review of the West Palaearctic species

A new species of Bicurta Sheng et al. from China (Hymenoptera, Ichneumonidae, Collyriinae), a parasitoid of Stenocephus fraxini Wei (Hymenoptera, Cephidae).

Taxonomic review of the genus Empria Lepeletier & Serville (Hymenoptera, Tenthredinidae) in South Korea: morphological and molecular identification of two new species

Three new species of the genus Zethus Fabricius, 1804 (Hymenoptera, Vespidae, Eumeninae) from China, with an updated key to the Oriental species

Outbreaks of Tomostethus nigritus (Fabricius, 1804) (Hymenoptera, Tenthredinidae) on Fraxinus angustifolia ‘Raywood’ in Belgium

Natural enemies of the oil-collecting bee Centris analis (Fabricius, 1804) with notes on the behavior of the cleptoparasite Coelioxys nigrofimbriata Cockerell, 1919 (Hymenoptera, Apidae)

Two new species of Pirhosigma Giordani Soika (Vespidae, Eumeninae), with an updated catalog for the genus

Revision of the south Asian amisegine genus Cladobethylus Kieffer, 1922 (Hymenoptera, Chrysididae, Amiseginae)

First host record and morphological notes on the rare Chilean wasp Vervoortihelcon scaramozzinoi van Achterberg (Hymenoptera, Braconidae, Helconinae, Vervoortihelconini)

Synopsis of New World Sigalphinae (Hymenoptera, Braconidae) with the Description of Two New Species and a Key to Genera

Review of the ant genus Anochetus Mayr, 1861 (Hymenoptera, Formicidae) from China, with revival of the valid status of Anochetus gracilis

Hybrizon Fallén (Hymenoptera, Ichneumonidae, Hybrizontinae) in China

Fighting injuries, fig exit, and dimorphism in two species of sycoryctine fig wasp (Chalcidoidea, Pteromalidae)

Taxonomic notes on the paper wasps of the subgenus Polistes (Gyrostoma) (Hymenoptera, Vespidae, Polistinae) occurring in Vietnam, with description of a new species

Homonymy in Pompilidae: The case of Balboana Banks (Pompilinae, Priochilini)

A new species of Platygaster (Hymenoptera, Platygastroidea) from India with an unusual antenna