Rhagoletis completa Cresson, 1929

Korneyev, V. A., Mishustin, R. I. & Korneyev, S. V., 2017, The Carpomyini Fruit Flies Diptera: Tephritidae Of Europe Caucasus And Middle East: New Records Of Pests With Improved Keys, Vestnik Zoologii 51 (6), pp. 453-470 : 465

Rhagoletis completa Cresson, 1929 ( figs 5 , 1 , 7 , 3 )

Rhagoletis suavis ssp. completa Cresson, 1929: 412 ; Rhagoletis completa: Bush, 1966: 488 ; Merz, 1991: 56; 1994: 109; White & Elson-Harris, 1992: 359; Norrbom et al., 1999: 200; Verheggen et al., 2017: 1.

Material. USA: Washington: Asotin Co., Clarckston , ex Juglans regia , 17.10.1982, 1 Ơ, 17.10.1983, 1 Ơ, 2 ♀, 30.10.1988, exit 5.08.1989, 2 ♀ (W. J. Turner) (det. J. Jenkins) ( SIZK). No European material was available during this study .

Distribution. Austria, Croatia, France, Hungary, Germany, Slovenia, Spain, Switzerland ( Verheggen et al., 2017); Canada, USA.

Ho s t pl ant s. Juglans nigra L., J. microcarpa Berl. , J. hirsuta Manning , J. major (Torr.) Heller. , J. regia L., J. californica S. Watson , J. hindii Rehd. , J. regia L. ( Smith & Bush, 1999).

Remarks. According to Verheggen et al. (2017), invasive European populations of the walnut husk fly initially were recorded from Switzerland and Italy (1988–1991). This species has subsequently established in least seven additional countries in Europe, but still has not reached the limits of its potential distribution, mainly by natural adult dissemination and adult hitchhiker behavior, and, to a lesser extent, transportation of larvae in fresh fruits. When the fly is uncontrolled, 100% of walnut trees can be infested, and losses in walnut yields may be up to 80 %. Under phytosanitary control, the negative effect can be reduced to less than 10% yield loss. There is a strong need for R. completa monitoring across European countries. In Ukraine, it is expected to invade the Transcarpatian Region.

Figures

Fig. 5. Rhagoletis spp. mesonotums (1–8), dorsal view, and head (2), lateral view: 1 — R. completa; 2 — R. bagheera; 3 — R. berberidis; 4 — R. cerasi; 5 — R. flavicincta; 6 — R. flavigenualis; 7 — R. obsoleta, Myhiia; 8 — R. sp. near obsoleta, Mt. Hermon.

Fig. 1. Carpomyini. 1–2 — Carpomya pardalina, Kherson (1 — freshly emerged male; 2 — infested melon with holes in skin (cyan arrows) prepared by larvae for emerging of adults); 3 — Rhagoletis meigenii on Berberis fruit, Berlin; 4 — R. cerasi on Lonicera fruit, Kyiv, Grishko Botanical Gardens. Photos by R. I. Mishustin (1–2) and V. A. Korneyev (3–4).

Fig. 7. Rhagoletis spp. wings: 1 — R. obsoleta, Myhiia; 2 — R. sp. near obsoleta, Mt. Hermon; 3 — R. completa;

Fig. 3. Carpomya spp. mesonotums, dorsal view: 1 — C. (Goniglossum) wiedemanni; 2 — C. (G.) liat; 3 — C. (Myiopardalis) pardalina; 4 — C. (s. str.) incompleta; 5 — C. (s. str.) schineri.