Egg parasitoids of Arboridia apicalis (Nawa, 1913) (Hemiptera, Cicadellidae), a leafhopper pest of grapevines in Japan, with description of a new species of Anagrus Haliday, 1833 (Hymenoptera, Mymaridae)

Abstract

<jats:p>Several species of egg parasitoids (Hymenoptera: Mymaridae and Trichogrammatidae) of the leafhopper pest of grapevines in Japan, Arboridia (Arboridia) apicalis (Nawa) (Hemiptera, Cicadellidae), were reared and identified for the first time. Using a combination of genetic and morphological evidence, Anagrus (Anagrus) arboridiae Triapitsyn &amp;amp; Adachi-Hagimori, <jats:bold>sp. nov.</jats:bold> (Mymaridae) is described and illustrated from Honshu Island (Shimane Prefecture) and Kyushu Island (Miyazaki Prefecture). It is shown to be different from Anagrus (Anagrus) japonicus Sahad and <jats:italic>A. flaviapex</jats:italic> Chiappini &amp;amp; Lin, to which it is most similar; the latter species was originally described from China and is newly recorded here from Okinawa Island, Japan. Mitochondrial and nuclear ribosomal DNA sequence data provide clear evidence for the separation of <jats:italic>A. arboridiae</jats:italic> from <jats:italic>A. flaviapex</jats:italic>, <jats:italic>A. japonicus</jats:italic>, and some other members of the Anagrus (Anagrus) atomus (L.) species group. Two other species of <jats:italic>Anagrus</jats:italic> Haliday, A. (Anagrus) avalae Soyka and <jats:italic>A. atomus</jats:italic>, are also identified in Japan from eggs of the leafhoppers <jats:italic>Edwardsiana ishidae</jats:italic> (Matsumura) and Eurhadina ? betularia Anufriev, respectively. An updated key to females of the Japanese species of <jats:italic>Anagrus</jats:italic> is given. <jats:italic>Oligosita pallida</jats:italic> Kryger (a new record for Japan), <jats:italic>Oligosita</jats:italic> sp., and an Aphelinoidea (Aphelinoidea) sp. (Trichogrammatidae) were the other, although much less abundant, apparent egg parasitoids of <jats:italic>A. apicalis</jats:italic> in Shimane Prefecture, mainly in non-organic vineyards.</jats:p>

Pest categorisation of Arboridia kakogawana

“…Although there are no reports of intraspecific variation for A. kakogawana, Tryapsin et al. (2020) suggest that the holotype of this species described by Matsumura (1932) may differ from specimens reported elsewhere. The reason is that there are no reports of A. kakogawana as a pest of cultivated grapes in its native range (i.e.…”

“…Interestingly, this insect is not considered a pest in Japan (Tryapsin et al, 2020), where it was originally described (Matsumura, 1931(Matsumura, , 1932.…”

A multidisciplinary approach in tackling invasive species: barcoding, morphology, and metataxonomy of the leafhopper Arboridia adanae

“…An alternative hypothesis is that Wolbachia might have been recently transferred horizontally to Arboridia through parasitoids [54][55][56] in Italy, after the leafhopper invasion. For example, it is known that parasitoids from Mymaridae and Trichogrammatidae can infect various Arboridia species and therefore horizontal transmission of Wolbachia might happen [63][64][65] .…”

Barcoding Hymenoptera: 11 Malaise Traps in Three Thai Forests: The First 68 Trap Weeks and 15,338 Parasitoid Wasp Sequences

“…The sources of species-level identifications were varied. Twelve species were identified because BOLD contained sequences representing named specimens sequenced in other projects, eleven were identified based on sequences that had been submitted to GenBank for currently unpublished research, ten were based on sequences submitted to GenBank as a part of published molecular phylogenetic studies [43][44][45][46][47][48], eight were from taxonomic revisions of various genera [13,49,50] that included barcode data, four were from studies of particular pest species and their parasitoid complexes [51][52][53][54], three were from a barcoding study of Canadian insects [33,55], two were from a barcoding inventory of Finland [56], and one was from the barcoding of German specimens held in a German museum [57]. The remainder are widespread, often commercially important parasitoids of crop or forestry pests; for example, the aphid parasitoids, Binodoxys acalephae and Lipolexis oregmae (both Braconidae, Aphidiinae) are important and widespread parasitoids of Aphis gossypii and numerous other aphids, and the almost-cosmopolitan polyembryonic encyrtid, Copidosoma floridanum, is a major and important parasitoid of many pest species of plusiine noctuid moths and, no doubt, of many more non-pest species [58,59].…”