Journal of Hymenoptera Research

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List of Papers (Total 86)

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

A new genus of melitturgine bees (Panurginae: Melitturgini) is described and figured from central Saudi Arabia. Belliturgula najdica Engel, gen. et sp. n., is similar in several respects to the genus Flavomeliturgula Patiny in that both have a greatly elongate glossa that is longer than the face and is truncate apically. The former differs in the greatly elongate and flattened...

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

The ophionine ichneumonid known as Hellwigia obscura has been reared for the first time, from larvae of Horisme sp. (Lepidoptera: Geometridae) feeding on Clematis vitalba in The Netherlands. The cocoon and the parasitoid’s means of emergence are figured, as are some features of the adult. On a balance of morphological grounds, including some already discussed in the literature...

Synopsis of New World Sigalphinae (Hymenoptera, Braconidae) with the description of two new species and a key to genera

We describe and illustrate Paphanus paloi sp. n., first generic record for Brazil, and Minanga patriciamadrigalae, first generic record for Costa Rica. We present illustrated keys for the New World genera of Sigalphinae, and the New World species of Paphanus and Minanga. Minanga patriciamadrigalae sp. n. was reared from caterpillars of Chloropteryx nordicariaDHJ01 (Geometridae).

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

The first host record for Vervoortihelcon scaramozzinoi van Achterberg, 1998 is presented and additional notes on its morphology are provided and illustrated. The species is recorded as parasitizing the cerambycid beetle Stenorhopalus rubiginus in Podocarpus L’Hér ex Pers (Podocarpaceae). The metasomal carapace is shown to be sexually dimorphic and comprising 4 tergites in...

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

A new species, Platygaster harpagoceras Popovici & Veenakumari, is described from India. The most unusual features of this species are the acuminate shape of the last antennomere and the 9-merous antenna in both sexes. The male and female are described and illustrated with brightfield and scanning electron microscopy. We provide a comparative analysis of the acuminate distal...

First detection of the samurai wasp, Trissolcus japonicus (Ashmead) (Hymenoptera, Scelionidae), in Canada

We report the first detection of Trissolcus japonicus, an exotic Asian egg parasitoid and the primary candidate for classical biological control of the invasive brown marmorated stink bug, Halyomorpha halys, in Canada. Twenty-eight Trissolcus japonicus emerged from an H. halys egg mass from a site heavily infested by H. halys in Chilliwack, British Columbia, in 2018. This egg...

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

Woodwasps (Hymenoptera: Siricidae) are saproxylic insects and a common forest pest. Siricid woodwasps are classified into two subfamilies: Siricinae and Tremecinae. All known symbiotic fungi of Siricinae are in the genus Amylostereum Boidin while some species of Tremecinae have been observed to have a relationship with the fungus Cerrena unicolor (Bull.) Murrill. Previous studies...

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

Eight species of the ant genus Anochetus are recognized in China: A. graeffei Mayr, A. lanyuensis Leong et al., A. longus sp. n., A. madaraszi Mayr, A. mixtus Radchenko, A. medogensis sp. n., A. risii Forel, A. subcoecus Forel. A. taiwaniensis Terayama, 1989 is proposed as a junior synonym of A. risii Forel, 1900. Anochetus gracilis Karavaiev, 1925 is restored from synonymy of A...

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

Only rarely have bumble bees (Bombus) been observed collecting honeydew from aphids (Aphididae) feeding on phloem sap. This behavior may be rare because the percentage of sugar in honeydew egested from aphids is generally well below the sugar concentration in floral nectars preferred by bumble bees. Nonetheless, in August 2018, near St. Buryan, Penzance, Cornwall, UK (56.0602N...

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

Honey production gains are needed to deal with high demand in Saudi Arabia. The honey bee races are facing stressful hot-arid weather conditions that can affect different aspects of physiology and behavior. The hypopharyngeal glands (HPGs) of honey bees have prominent roles in various social behaviors through their secretions. The measurement of acini size and lipofuscin...

Revision of the European species of Euplectrus Westwood (Hymenoptera, Eulophidae), with a key to European species of Euplectrini

The European species of Euplectrus Westwood are comprehensively treated for the first time, using a combination of morphological and DNA data (CO1, the barcode). Ten species are included, seven already described: E. bicolor (Swederus), E. flavipes (Fonscolombe), E. intactus Walker, E. liparidis Ferrière, E. maculiventris Westwood, E. nigriceps Ferrière, E. phthorimaeae Ferrière...

Two Asian egg parasitoids of Halyomorpha halys (Stål) (Hemiptera, Pentatomidae) emerge in northern Italy: Trissolcus mitsukurii (Ashmead) and Trissolcus japonicus (Ashmead) (Hymenoptera, Scelionidae)

Halyomorpha halys (Stål) is a severe agricultural pest that is spreading worldwide from its original distribution in Asia. Egg parasitoids from Asia, which play a key role in the population dynamics of H. halys, are following its host along global pathways. We present the first records of Trissolcus mitsukurii in Europe, and of Trissolcus japonicus in Italy. Both discoveries were...

Siblicidal behaviour by larvae of the gregarious parasitoid Cotesia vanessae

Contrasting life histories distinguish solitary from gregarious parasitoids. Females of solitary species typically lay one egg in a host; when more than one parasitoid is present in the host, larvae will kill their rivals so that only one parasitoid completes development. Females of gregarious species typically lay multiple eggs in the same host with the resultant larvae co...

Beta diversity of four braconid subfamilies (Braconidae, Agathidinae, Braconinae, Doryctinae and Macrocentrinae) of the Ria Lagartos Biosphere reserve in Yucatan, Mexico, with some considerations on biological habits

The species diversity composition and phenological behaviour of four braconid subfamilies (Hymenoptera: Braconidae: Agathidinae, Braconinae, Doryctinae and Macrocentrinae) were monitored in three vegetation communities (dune vegetation, tropical deciduous forest and savannah) of the Ria Lagartos Biosphere Reserve (RLBR) in Yucatan, Mexico. Braconid wasps were collected with...

The unknown followers: Discovery of a new species of Sycobia Walker (Hymenoptera: Epichrysomallinae) associated with Ficus benjamina L. (Moraceae) in the Neotropical region

Biotic invasion in mutualistic communities is of particular interest due to the possible establishment of new relationships with native species. Ficus species are widely cultivated as ornamental plants, and they host specific communities of chalcid wasps that are strictly associated with the fig inflorescences. Some introduced fig species are capable of establishing new...

Discovery of the nest of the yellow jacket Vespula structor (Smith) (Hymenoptera, Vespidae) from China with description of its immature stages

Data on the nest structure, morphology of all stages and behaviour have contributed to the phylogenetic and taxonomic studies of social vespids. Two underground nests of Vespula structor (Hymenoptera, Vespidae, Vespinae) were discovered in China. For the first time, the morphology of all the stages, and the nests are described in detail and illustrated. It is additional evidence...

Probable marking behavior of Cerceris clypeata (Philanthinae, Crabronidae, Hymenoptera)

Males of Cerceris clypeata appear to mark grass stems and other plant parts with secretions from cephalic glands by placing the head and tip of the abdomen on the plant as they walk up the stem or around the leaf of the marked plant. Behavior of this sort has rarely been recorded for Cerceris but is common in the Philanthinae including some members of the Cercerini, which...

Description of mature larvae and ecological notes on Gasteruption Latreille (Hymenoptera, Evanioidea, Gasteruptiidae) parasitizing hymenopterans nesting in reed galls

Wasps of the genus Gasteruption are predator-inquilines of bees nesting in cavities in wood, stems, galls, and vertical soil surfaces. During studies of hymenopterans associated with reed galls caused by flies of the genus Lipara we recorded three species. We provide the evidence that a rare European species Gasteruption phragmiticola is a specialized predator-inquiline of an...

Courtship behaviour in the genus Nomada – antennal grabbing and possible transfer of male secretions

Due to low population densities, copulation in the cuckoo bee genus Nomada has not previously been observed, although a seminal paper by Tengö and Bergström (1977) on the chemomimesis between these parasitic bees and their Andrena or Melitta hosts postulated that secretions from male glands might be sprayed onto females during copulation. Our observations on the initiation and...

Biology of Palaearctic Wainia bees of the subgenus Caposmia including a short review on snail shell nesting in osmiine bees (Hymenoptera, Megachilidae)

Wainia, a species-poor genus of osmiine bees, contains two Palaearctic species, whose biologies are unknown. In the present publication, we describe the nesting site and nest architecture of W. sexsignata and analyse the pollen host spectra of W. sexsignata and W. eremoplana by microscopical analysis of larval faeces and female scopal contents. W. sexsignata nests in empty snail...

Notes on Grammospila Foerster (Hymenoptera, Braconidae, Alysiinae), with description of a new species

The species of the genus Grammospila Foerster, 1863 (Hymenoptera: Braconidae: Alysiinae) are keyed, an aberrant new species from Italy, G. martae sp. n., is described and illustrated, and G. ochrogaster (Szépligeti, 1898), stat. n. is considered to be a valid species.

A new species of Anagyrus (Hymenoptera, Encyrtidae) from Malaysia, parasitoid of Lanceacoccus sp. (Hemiptera, Pseudococcidae)

A new species of Anagyrus Howard, 1896 (Hymenoptera: Encyrtidae), A. minipedicellus Zu & Zhang sp. n., is described from Borneo of Malaysia as a parasitoid of Lanceacoccus sp. (Hemiptera: Pseudococcidae), and DNA barcoding of the new species is given.

Revision of the enigmatic genus Gastralysia Fischer (Hymenoptera, Braconidae, Alysiinae)

The enigmatic genus Gastralysia Fischer, 1967 (Hymenoptera: Braconidae: Alysiinae) and its type species, G. garambana Fischer, 1967, are redescribed and illustrated. The female is described for the first time. The position of the genus is discussed and the genus is placed in a new subtribus, Gastralysiina subtrib. n. The genus is reported new for Ivory Coast and Tanzania.