The species of Pteromalus Swederus in America north of Mexico with a 4:4 mandibular formula, and description of a potential biocontrol agent of the introduced pest Anthonomus rubi (Herbst) (Coleoptera: Curculionidae).

The strawberry blossom weevil, Anthonomus rubi (Herbst) (Coleoptera: Curculionidae), is native to Europe, Asia, and parts of North Africa, and has recently established in British Columbia, Canada and Washington State, USA. To determine whether any parasitoids in British Columbia parasitize this recently-established pest, A. rubi-infested buds of Rosaceous host plants were collected and reared for parasitoid emergence.

Review of Walker, 1834 (Hymenoptera, Chalcidoidea, Asaphesinae) from Xinjiang, China.

Four species of the cosmopolitan genus Walker, 1834 (Hymenoptera: Chalcidoidea: Asaphesinae, family incerta sedis) are recorded from Xinjiang Uyghur Autonomous Region, China, bringing the number of known species in China to eight. In addition to (Nees ab Esenbeck), 1834 and Walker, 1834, Li & Zhang, is newly described based on females and Girault, 1917, previously known only from North and South America, is newly recorded from China. These four species are differentiated using an integrative taxonomic approach that includes COI barcode data and morphometrics, and are illustrated using macrophotography.

Leptoomidae, a new family of Eocene fossil Chalcidoidea (Hymenoptera), and family classification of Eocene fossil genera originally described in Neanastatinae (Eupelmidae).

Leptoomidae Gibson fam. nov. (Chalcidoidea) is described for the Eocene Baltic amber fossil genera Leptoomus Gibson, type genus, reassigned from Tanaostigmatidae, and Neanaperiallus Gibson, reassigned from Neanastatinae (Chalcidoidea: Eupelmidae) sensu Gibson (2009).

Revision of the Old World genus Mesocomys Cameron (Hymenoptera: Eupelmidae).

The Old World genus Mesocomys Cameron (1905) (Hymenoptera: Eupelmidae: Eupelminae) is revised. Eleven species, including two newly described species, are recognized and keyed in two previously established species groups, the albitarsis and the pulchriceps species groups sensu Gibson (1995), but with additional features provided to distinguish members of the two groups. Five species are recognized in the pulchriceps group-Mesocomys anelliformis n.

Review of the species of Anastatus (Hymenoptera: Eupelmidae) known from China, with description of two new species with brachypterous females.

Fourteen species of Anastatus (Anastatus) Motschulsky, 1859 (Hymenoptera: Eupelmidae) are treated from China, of which A. (Anastatus) flavaeratus Peng and Tang n. sp.

Redescription of Anastatus mantoidae Motschulsky, the type species of Anastatus Motschulsky 1859, and Anastatus echidna (Motschulsky), the type species of Cacotropia Motschulsky 1863, with respect to taxonomy of Anastatus (Hymenoptera: Eupelmidae: Eupelminae).

Both sexes of Anastatus mantoidae Motschulsky, the type species of Anastatus Motschulsky, 1859, and females of Anastatus echidna (Motschulsky), the type species of Cacotropia Motschulsky, 1863, the oldest junior synonym of Anastatus (Hymenoptera: Eupelmidae: Eupelminae), are redescribed and illustrated based on original type material and compared to more recently collected material. Anastatus mantoidae, previously known only from Sri Lanka, is newly reported from Indonesia (Java and Sumatra) and Thailand, and a very similar species, A. motschulskyi n.

Motschulsky (Hymenoptera, Eupelmidae): egg parasitoids of Moore (Lepidoptera, Saturniidae) in China.

Four species of Motschulsky (Hymenoptera, Eupelmidae, Eupelminae) are newly reported as egg parasitoids of the Japanese giant silkworm, Moore and, as an alternate laboratory host, the Chinese oak silk moth, (Guérin-Méneville) (Lepidoptera, Saturniidae) in China. The four species, Sheng & Wang, 1997, Chen & Zang, , Ashmead, 1904, and Sheng, 1998, were reared initially from eggs of collected in Gansu, Jilin and Liaoning provinces and subsequently cultured in the laboratory on eggs of . An illustrated key to differentiate females of the four species, and males of some of the species is provided.

Validation of Psomizopelma metallicum Gibson, 2018 (Hymenoptera: Eupelmidae).

Gibson (2018) recently revised the species of Psomizopelma Gibson, 1995 (Hymenoptera: Eupelmidae), in which P. metallicum was described based on females as one of four new species. In the section on "type material" for this species, one paratype was stated as deposited in the CNC (Canadian National Collection of Insects, Arachnids and Nematodes, Agriculture and Agri-Food Canada, Ottawa, ON, Canada), whereas the holotype and three other paratypes were stated as deposited in UCFC (University of Central Florida Collection of Arthropods, Orlando, FL, USA).

The species of Ecnomocephala Gibson (Hymenoptera: Eupelmidae).

The species of the New World genus Ecnomocephala Gibson (Hymenoptera: Chalcidoidea: Eupelmidae: Eupelminae) are revised. Seven species are recognized, the type species, E. townesi Gibson, 1995 (♀♂: USA), and the following six new species: E.

The species of Psomizopelma Gibson (Hymenoptera: Eupelmidae).

The species of the New World genus Psomizopelma Gibson (Hymenoptera: Chalcidoidea: Eupelmidae: Eupelminae) are revised. Five species are recognized, including one species with macropterous females, P. macropterum n.

Revision of Lutnes Cameron (Hymenoptera: Eupelmidae).

Argaleostatus Gibson, 1995 is synonymized under Lutnes Cameron, 1884 (Hymenoptera: Chalcidoidea: Eupelmidae: Eupelminae) n. syn. and its type species, Eupelmus testaceus Cameron, 1884, is transferred to Lutnes as L.

Synonymy of Yoshimoto under Walker (Hymenoptera: Chalcidoidea: Eupelmidae), with a checklist of world species and a revision of those species with brachypterous females.

Reikosiella Yoshimoto, 1969 is synonymized under Merostenus Walker, 1837 n. syn. and treated as M.

Revision of the Neotropical genus Macreupelmus Ashmead (Hymenoptera: Chalcidoidea: Eupelmidae).

The Neotropical genus Macreupelmus Ashmead (Eupelmidae: Eupelminae) is revised based on females, males being unknown for the genus. The genus is redescribed, its phylogenetic relationships within Eupelminae discussed, and the species keyed, described and illustrated through macrophotography. Nine species are recognized-Macreupelmus auranticrus n.

A new species of Oozetetes De Santis (Hymenoptera: Chalcidoidea: Eupelmidae) from Colombia with an updated key for the bucheri species-group.

Oozetetes lucidus sp. nov. (Hymenoptera: Eupelmidae) is described from Colombia, South America, and through macrophotography compared with all described species in the bucheri species-group of Oozetetes De Santis.

Revision of the Palaearctic species of Eupelmus (Eupelmus) Dalman (Hymenoptera: Chalcidoidea: Eupelmidae).

One hundred-four extant species of Eupelmus Dalman (Hymenoptera: Eupelmidae: Eupelminae) are recognized from the Palaearctic region, of which 76 species of E. (Eupelmus) are recognized following a revision of the Palaearctic fauna of the subgenus. The following 25 species are described as new: E.

Revision of Paranastatus Masi (Eupelmidae, Eupelminae) with descriptions of four new species.

Paranastatus Masi, 1917 (Eupelmidae, Eupelminae) was originally described based on two species from Seychelles: Paranastatus egregius and Paranastatus violaceus. Eady (1956) subsequently described Paranastatus nigriscutellatus and Paranastatus verticalis from Fiji. Here, four new species of Paranastatus are described: Paranastatus bellus Scallion, sp.

The presence of Notanisus Walker (Hymenoptera: Pteromalidae) in North America and revision of the oulmesiensis species group.

The presence and distribution of two species of Notanisus Walker (Hymenoptera: Pteromalidae) in North America is reported. Notanisus sexramosus (Erdős), originally described from Hungary and previously reported from Maryland, USA, is recorded also from Massachusetts and Pennsylvania based on a male and macropterous and brachypterous females. Males of Notanisus are shown to have two types of flagellar structure, ramose and pedicellate, and diagnostic features are given for the previously unknown males of N.

An integrative study of Thomson (Hymenoptera: Eulophidae) associated with invasive pests in Europe and North America: taxonomic and ecological implications.

The species of attacking two invasive pests of tomato and canola in Europe and North America, respectively, (Meyrick) (Lepidoptera: Gelechiidae) and (Marsham) (Coleoptera: Curculionidae), have been revised using an integrative taxonomy approach. Molecular data from the mitochondrial cytochrome oxidase subunit I and the nuclear D2 expansion region of the 28S ribosomal subunit and internal transcribed spacer 2, the discovery of new morphological features, and study of type material resulted in the delineation of three species groups, the , , and groups, the discovery of four new species, and the resurrection of three taxa from synonymy. Lectotypes have been designated for 13 species originally described in by Walker.

The parasitoids of the asparagus miner (Diptera: Agromyzidae): field parasitism and the influence of food resources on life history.

The goals of this study were to identify pupal parasitoids of the asparagus miner, Ophiomyia simplex Loew (Diptera: Agromyzidae), and examine the effect of different diets and floral resources on the lifespan of adult asparagus miners and their parasitoids. We also measured the effect of parasitism on stem damage caused by the asparagus miner. The identity and abundance of the parasitoids of the asparagus miner were determined in asparagus fields in Michigan from weekly asparagus miner pupal collections during the 2010-2013 seasons.

A phylogenetic analysis of the megadiverse Chalcidoidea (Hymenoptera).

Chalcidoidea (Hymenoptera) is extremely diverse with an estimated 500 000 species. We present the first phylogenetic analysis of the superfamily based on both morphological and molecular data. A web-based, systematics workbench mx was used to score 945 character states illustrated by 648 figures for 233 morphological characters for a total of 66 645 observations for 300 taxa.

The extinct Baltic amber genus Propelma Trjapitzin, a valid genus of Neanastatinae (Hymenoptera, Eupelmidae).

The extinct Eocene Baltic amber genus Propelma Trjapitzin 1963 is removed from synonymy under Eupelmus Dalman 1820 (Hymenoptera, Eupelmidae, Eupelminae) and treated as a valid genus within Neanastatinae Kalina 1984 based on examination of the holotype female of Propelma rohdendorfi Trjapitzin. Propelma rohdendorfi is redescribed, illustrated by photomacrographs, and compared to other described extant and extinct genera of Neanastatinae. Taxonomic, morphological and geological diversity of Neanastatinae relative to Eupelminae and Calosotinae is also discussed relative to potential age of the subfamily.

Hymenopteran parasitoids of the ant-eating spider Zodarion styliferum (Simon) (Araneae, Zodariidae).

Calymmochilus dispar Bouček & Andriescu (Hymenoptera, Eupelmidae) and Gelis apterus (Pontoppidan) (Hymenoptera, Ichneumonidae) are newly recorded as parasitoids of the ant-eating spider Zodarion styliferum (Simon) (Araneae, Zodariidae). The larvae of both parasitoid species fed on juvenile spiders. The final instar larva and pupa of Calymmochilus dispar and the male of Gelis apterus are described for the first time.

Revision of the species of Jaliscoa Bouček within a review of the identity, relationships and membership of Jaliscoa, Catolaccus Thomson, Eurydinoteloides Girault, Lyrcus Walker and Trimeromicrus Gahan (Hymenoptera: Pteromalidae).

The limits of Lyrcus Walker (1842), Catolaccus Thomson (1878), Eurydinoteloides Girault (1913a), Trimeromicrus Gahan (1914), and Jaliscoa Bouček (1993) are re-evaluated and redefined to better reflect observed distribution of morphological features. Nine of 13 New World species of Catolaccus are transferred to other genera and photographs of the primary type specimens are given to assist future recognition. New features are provided to assist identification of the remaining four Nearctic species of Catolaccus and these are compared to European species, with the observation that C.

Calosota Curtis (Hymenoptera, Chalcidoidea, Eupelmidae) - review of the New World and European fauna including revision of species from the West Indies and Central and North America.

Two of three species previously classified in Calosota Curtis (Hymenoptera: Eupelmidae) from the Neotropical region are transferred to Eupelminae. Calosota eneubulus (Walker) from Galapagos Islands is transferred to Eupelmus Dalman as Eupelmus (Eupelmus) eneubulus (Walker), comb. n.