A new species of Anteon (Hymenoptera, Dryinidae) from Turkey

A new species from Turkey, Anteon leleji sp. nov. (Hymenoptera, Dryinidae), is described and illustrated. Its relationship with Palaearctic and Afrotropical species of Anteon is discussed. The new species is close to A. xericum Olmi & van Harten described from Yemen, and known also from other Afrotropical countries. The key to the Palaearctic species of Anteon is modified to include the new species. New records of Anteon species from Turkey are registered.


Introduction
Dryinidae (Hymenoptera, Chrysidoidea) are parasitoids and often also predators of leafhoppers, planthoppers and treehoppers (Hemiptera, Auchenorrhyncha) (Guglielmino et al. 2013). The family consists of 52 genera , including Anteon Jurine, 1807. This genus includes 464 species and is known to parasitize leafhoppers of the family Cicadellidae (Olmi et al. 2019). Anteon species can be easily recognized for the following characters (see Olmi et al. 2019 for keys and figures): female with distinct ocelli; fore wing with distal part of 2r-rs&Rs vein much shorter than proximal part; chelate protarsus; rudimentary claw absent; inner side of the enlarged claw with a proximal prominence bearing one long bristle; male with three basal cells of the fore wing completely enclosed by pigmented veins; fore wing with PostabR1 (= radius) absent or shorter than pterostigma; pterostigma less than 4 × as long as broad; distal part of 2r-rs&Rs vein much shorter than proximal part; hypopygium not umbrella-shaped.
In 2020, we received on loan a specimen of Anteon collected in Turkey. It resulted to be a new species described herein.

Materials and methods
The description follows the terminology used by Olmi et al. (2019). The measurements reported are relative, except for the total length (head to abdominal tip, excluding antennae and sting), which is expressed in millimetres. The following abbreviations are used in the descriptions: POL -the distance between the inner edges of the two lateral ocelli, OL -the distance between the inner edges of a lateral ocellus and the median ocellus, OOL -the distance from the outer edge of a lateral ocellus to the compound eye, OPL -the distance from the posterior edge of a lateral ocellus to the occipital carina, TL -the distance from the posterior edge of an eye to the occipital carina. The term "disc of metapectal-propodeal complex" is here used in the sense of Kawada et al. (2015). It corresponds to the term "dorsal surface of propodeum" sensu Olmi (1984). The term "propodeal declivity" sensu Kawada et al. (2015) used here, corresponds to the term "posterior surface of propodeum" sensu Olmi (1984). The names of veins of the forewing are here used in the sense of Olmi et al. (2019). The "stigmal vein" (sensu Olmi 1984) is here named "second radial-radial sector crossvein & radial sector vein (2r-rs&Rs)".
The types of all Palaearctic species of Anteon have been previously examined by the authors.
The specimens examined in this paper were studied by a stereomicroscope Wild M5. The multifocal photos were taken by one of the coauthors (LC) using a mirrorless camera Sony Alpha 6300 with cross table Proxxon KT 70. Captured images were merged into a single in-focus image using ZereneStacker version 1.04. Plates were composed by Photoshop CS6. Line drawings were made by a camera lucida combined with a microscope Leitz Laborlux 12.

Discussion
Species of the genus Anteon usually have very large geographic distributions (Olmi 1999;Olmi et al. 2019). Species that have been recorded from only one country or region are expected to be found in other regions in future. Anteon leleji sp. nov. should not be an exception. As Western Europe is well known, probably A. leleji sp. nov. should be a species present in the Middle East or maybe also in Eastern Europe. The Middle East is insufficiently known. Recent investigations in Iran (mainly thanks to Prof. Ehsan Rakhshani research group, Zabol University, Iran) (Derafshan et al. 2016(Derafshan et al. , 2017(Derafshan et al. , 2020(Derafshan et al. , 2021 are trying to fill this gap. However, the work is hard, since the Middle East covers wide range and the number of involved researchers is too small. Another big gap regards the hosts of Anteon. They are almost unknown in the entire Middle East. The species, whose hosts are recorded in the Middle East, are only two (Guglielmino et al. 2013).
Following the description of A. leleji sp. nov., eight are the Anteon species recorded in the Middle East (Olmi 1999(Olmi , 2021Olmi and Xu 2015;present paper), of which seven registered from Turkey. However, the species present in Turkey are more numerous. We can register here the following six new records, based on material identified by the authors and deposited in OLL: Following the above new records, the species of Anteon recorded from Turkey are now 13.