Rhagoletis batava Hering, 1958

Korneyev, S. V., Smith, J. J., Hulbert, D. L., Frey, J. E. & Korneyev, V. A., 2022, A New Species Of Rhagoletis (Diptera, Tephritidae) From Switzerland, With Discussion Of Its Relationships Within The Genus, Zoodiversity 56 (1), pp. 1-20 : 8-10

Rhagoletis batava Hering, 1958 ( fig. 4 )

Rhagoletis batava Hering, 1958: 2 (description); Kandybina, 1977: 145 (larvae); Norrbom et al., 1999 (catalogue); Korneyev et al., 2018 a: 462, 2018 b: 43 (key; distribution); Korneyev & Korneyev, 2019: 93 (key).

T y p e m a t e r i a l. Holotype ♀: The Netherlands: Terschelling I. , Boschplaat (Theowald) ( SMNS).

N o n - t y p e m a t e r i a l. Kyrgyzstan: Tien Shan, 1500 m, “Pristan-Przewalsk”, near Karakol (= Przewalsk) , 42.5756º N, 78.3011º E, 28.07.1986, 4 Ơ (Korneyev); Karakol, on Hippophae , 15.08.1994, 1 ♀ (Korneyev); Terskei Alatau, Karakol ravin, h = 2050–2850 m, 42.4431º N, 78.4129º E, 12– 13.08.1998, 3 Ơ; 2 ♀ (Korneyev & Kameneva); Yssyk-Kol Region , Chong-Kyzyl-Suu , 42.250º N 78.130º E, 16– 17.08.1998, 3 Ơ, 1 ♀ (Korneyev & Kameneva); Alai, 45 km S of Kyzyl-Kiya, Kichik-Alai Ridge, Isfairam-Sai basin, Langar , h = 1800–1900 m, 39.8264º N, 72.1133º E, 30.07.1999, 4 Ơ; 3 ♀ (Korneyev & Kameneva) ( SIZK) , idem, 3 Ơ, 3 ♀ in alcohol (Korneyev & Kameneva) ( MSU) ; Russia: Altay, Chikhachev Ridge , reared ex fruits Hippophae rhamnoídes 09.1966– 17.03.1967, 3 Ơ, 2 ♀ (Litvinchuk) ( SIZK) ; The Netherlands: Hompelvoet Z.H. 10– 18.07.2000, 2 Ơ, 3 ♀ (B. V. Aartsen) ( SIZK) ; Tajikistan: Peter First Range , 39.14382º N, 71.56161º E , 3 km S Muk , 2320 m asl, swept from Hippophae rhamnoides , 26.07.2018, 3 Ơ, 7 ♀ ; 39.07035º N, 70.79778º E, Mirazyon, 1950 m asl, swept from Hippophae rhamnoides , 27.07.2018, 1 Ơ; Turkestan Range, N slope, 39.520714º N, 68.925904º E, 25 km SE Dzharkutan , 2840 m asl, 6.08.2018, 3 ♀ (V. Korneyev) ( SIZK) .

Diagnosis. Rhagoletis batava is similar to R. bagheera and R. merzi in general appearance and in having black femora, differing from R. bagheera by its larger size (wing length = or> 3 mm in R. batava vs. <2.5 mm in R. bagheera ) and from R. merzi by the conspicuously longer posterior lobe of the lateral surstylus (1.3 times as long as surstylus basal of prensisetae ( fig. 4 , d) vs. only 0.6–0.7 times as long as surstylus basal of prensisetae in R. merzi ( fig. 8 , b)) in the male and by spermatheca size and shape in the female (oval, 0.03 mm in diameter, and with the neck as long as the spermatheca in R. batava ( fig. 4 , i) vs. spherical, 0.09 mm in diameter, with the neck at most 0.8 times as long as the spermatheca itself in R. merzi ( figs 2 , f; 8 f )), as well as by the different host plants.

Measurements. Body length Ơ = 3.64 mm; body length ♀ = 3.9 mm; wing length Ơ = 3.0–3.6 (m = 3.38) mm; wing length ♀ = 3.3–4.2 (m = 3.8); costal cell length = 0.9; aculeus length = 0.78 mm; aculeus length /costal cell length = 0.9.

H o s t p l a n t. Hippophae rhamnoides L. ( Elaeagnaceae ) ( Kandybina, 1962).

Distribution. Europe ( Korneyev et al., 2018 b); south of West and East Siberia; Middle Asia.

Figures

Fig.4.Rhagoletis batava male (a, с–e) and female (b, f–j): a — habitus dorsal, b — same, left; c, d — epandrium, hypandrium and surstyli (c — left, d — posterior), e — phallus glans; f — aculeus apex, g — ovipositor, h — spermatheca; i — eversible membrane, ventral. Scale: f — 0.1 mm, g — 0.5 mm.

Fig. 8. Rhagoletis merzi sp. n. paratypes (SIZK): male (a–с) and female (d–g): a, b — epandrium, hypandrium and surstyli (a — left, b — posterior), c — phallus glans; d — aculeus apex, e — aculeus, f — spermatheca; g — eversible membrane, ventral. Scale: d, f — 0.1 mm, e, g — 0.5 mm.

Fig. 2. Palearctic species of Rhagoletis species similar to R. merzi, epandrium and surstyli, posterior view (a–c) and spermatheca (d–f): a, d — R. batava; b, e — R. flavigenualis; c, f — R. merzi sp. n.