Review of the European species of Diglyphus Walker (Hymenoptera: Eulophidae) including the description of a new species

Abstract

The European species of Diglyphus Walker are reviewed. Fifteen species are included. One of these, D. clematidis sp. n., is described as new, and one, D. anadolucus Doganlar, is recorded as new to Europe. Several of the species have their geographical distribution increased as many new country records are introduced. New host records and compilation of host records from the literature are presented in tables. To facilitate the identification of the species a key and numerous illustrations are included. The identity of one of the species described from Europe, D. phytomyzae Ruschka, is unclear. It has not been possible to locate the type material of this species and the original description is not detailed enough to make an unambiguous interpretation possible. Two species, D. scapus Yefremova from Iran and D. sensilis Yefremova from Turkey, are discussed as they occur in the vicinity of Europe.

Life history and biocontrol potential of the first female-producing parthenogenetic species of Diglyphus (Hymenoptera: Eulophidae) against agromyzid leafminers

“…Diglyphus (Eulophidae) is an economically important genus of solitary ectoparasitoids against agromyzid leafminers 7 – 16 , with a wide distribution wordwide 15 (39 species). There are 15 and 16 species of Diglyphus distributing in Europe and China, respectively 7 , 14 , 17 .…”

Potential for biological control of the vegetable leafminer, Liriomyza sativae (Diptera: Agromyzidae), in Australia with parasitoid wasps

“…Diglyphus isaea is distributed widely in Europe, Asia and parts of Africa and South America, parasitising an extensive range of hosts (Carvalho et al . ; Hansson & Navone ; CABI ; Noyes ). In south‐eastern Australia, it has also been recovered from three agromyzid hosts (Bjorksten et al .…”

“…) and eight agromyzid hosts in New Zealand (McGregor ; Martin ). The wide distribution and broad host range of D. isaea suggests that it may represent a group of very closely related species (Hansson & Navone ). While Zhu et al .…”

Figure 1 from: Du S-J, Yefremova Z, Ye F-Y, Zhu C-D, Guo J-Y, Liu W-X (2021) Morphological and molecular identification of arrhenotokous strain of Diglyphus wani (Hymenoptera, Eulophidae) found in China as a control agent against agromyzid leafminers. ZooKeys 1071: 109-126. https://doi.org/10.3897/zookeys.1071.72433

“…Diglyphus (Hymenoptera: Eulophidae) are economically-important parasitoids against agromyzid leafminers (Zhu et al 2000;Yefremova et al 2011;Liu et al 2013;Hansson and Navone 2017), although there are a few species (e.g. D. begini, D. chabrias, D. isaea) that attack other hosts, such as Lepidoptera, Lyonetiidae and Nepticulidae (Noyes 2019).…”