Oligosita pallida Kryger, 1919

Triapitsyn, Serguei V., Adachi-Hagimori, Tetsuya, Rugman-Jones, Paul F., Kado, Natsuko, Sawamura, Nobuo & Narai, Yutaka, 2020, 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), ZooKeys 945, pp. 129-152 : 129

Oligosita pallida Kryger, 1919 Figure 5

Oligosita pallida Kryger, 1919: 318-319. 2 syntype ♀♀ [Zoological Museum, Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark (ZMUC)] (not examined). Type locality: Gentofte, Denmark.

Oligosita pallida Kryger: Viggiani 1987: 543-546 (synonymy, type material, diagnosis, distribution, host associations, illustrations); Liu and Li 2019: 1125 (key), 1126-1127 (taxonomic history, list of synonyms, distribution, hosts).

Oligosita sp.: Triapitsyn, 1998: 83 (reared from eggs of an Arboridia sp. in Turkmenistan).

Material examined.

Japan, Honshu Island, Shimane Prefecture: Izumo, Taisha (emerged from leaves of non-organic table grape infested with A. apicalis in a covered vineyard): 35°21'11"N, 132°40'59"E, 8 m, Shine Muscat grapes: collected 25.ix.2019, N. Kado, N. Sawamura, emerged 2-6.x.2019, S. V. Triapitsyn, N. Kado [2 ♂♂, UCRC]; collected 30.ix.2019, N. Kado, N. Sawamura, emerged 6.x.2019, S. V. Triapitsyn [1 ♀, UCRC]; collected 2.x.2019, N. Kado, Y. Narai, T. Adachi-Hagimori, S. V. Triapitsyn, emerged 3-5.x.2019, S. V. Triapitsyn, N. Kado [3 ♀♀, UCRC]. 35°21'21"N, 132°41'22"E, 3 m, Watanabe vineyard, Delaware grapes, collected 1.x.2019, N. Kado, N. Sawamura: emerged 3.x.2019, S. V. Triapitsyn, N. Kado [2 ♀♀, 1 ♂, UCRC]; emerged 4.x.2019, S. V. Triapitsyn, N. Kado [1 ♀, UCRC]. Unnan, Oku-Izumo vineyard, 35°17'20"N, 132°55'46"E, 155 m (organic Black Olympia table grapes heavily infested with A. apicalis in a covered vineyard), leaves collected 4.x.2019, N. Kado, N. Sawamura, T. Adachi-Hagimori, S. V. Triapitsyn, emerged 17.x.2019, N. Kado [1 ♀, UCRC].

Other material examined.

France, Gironde, Sainte Colombe, M. van Helden, in vineyards: 44°52'N, 00°02'W [3 ♀♀, UCRC]; Pitray, 44°54'N, 00°02'W [1 ♀, UCRC]. Iran: Isfahan, vi.2000, S. Hesami, from grape leafhopper [1 ♀, UCRC]. Khorasan, Fazd Village, 10.x.1994, J. Vafabaksh, from grape leaves [1 ♀, UCRC]. Turkmenistan, Ashgabat, 24.viii.1993, S. N. Myartseva, from eggs of Arboridia (Arboridia) hussaini (Ghauri) on grape [1 ♀, UCRC].

Distribution.

Palaearctic region: China ( Liu and Li 2019), Croatia ( Bakkendorf 1971 [for Oligosita tominici Bakkendorf, a synonym of O. pallida ( Viggiani 1987)]), Czech Republic, Denmark, Hungary, Iran, Italy, Netherlands, Turkey, UK ( Noyes 2019), France, Japan, and Turkmenistan (new records).

Hosts.

Cicadellidae : Arboridia (Arboridia) apicalis (Nawa), A. (Arboridia) hussaini (Ghauri) ( Triapitsyn 1998 [as Arboridia sp. for Oligosita sp.]) (new records), as well as A. (Arboridia) adanae (Dlabola) ( Viggiani 1987; Yiğit and Erkiliç 1987), A. (Arboridia) kermanshah Dlabola ( Mostaan and Akbarzadeh 1995), Edwardsiana rosae (L.) ( Viggiani 1987), Zygina (Zygina) eburnea Fieber ( Bakkendorf 1971 [as Erythroneura eburnea for O. tominici ]), and Zygina (Zygina) rhamni Ferrari ( Viggiani 1987).

Remarks.

Females of this distinctive species can be recognized by the uniformly pale color of the body (Fig. 5a ), while in males the sides of metasoma and sometimes mesosoma are dark (Fig. 5b ). Other distinguishing features of both sexes include a rather long clava of the antenna and a characteristic fore wing with a distinctive dark spot behind the apex of venation (Fig. 5 ), as described and illustrated by Kryger (1919) and Viggiani (1987).

Other examined female specimens of an Oligosita sp. in UCRC, collected from grape leaves in Iran, have several small dark spots on the sides of metasoma; thus, we cannot positively identify them as O. pallida without availability of a thorough assessment of intraspecific variation of body color in this species.

Figures

Figure 5. Oligosita pallida (Taisha, Izumo, Shimane Prefecture, Honshu Island, Japan) a habitus of female (lateral view) b habitus of male (dorsolateral view).