Abstract
The structure of the ovipositor sclerites and muscles was studied in the tephritid fly Oxyna parietina (Linnaeus, 1758) inducing galls on the stems of Artemisia vulgaris. Adaptations of the ovipositor structure associated with changes of the oviposition substrate due to new larval habits are analyzed. The ovipositor muscles of Oxyna parietina are compared to those of Campiglossa. The genera Oxyna Robineau-Desvoidy, 1830 and Campiglossa Rondani, 1870 belong to the same genus-group of Tephritini, but differ in their host associations and oviposition habits: the larvae of Campiglossa plantaginis (Haliday, 1833) develop in the capitula of Aster tripolium and other asters (Asteraceae). The ovipositor sclerites and muscles are similar in the two genera. Progression of hemolymph into the membranous sheath of the ovipositor and protraction of the aculeus are necessary conditions for laying eggs into the capitula of Asteraceae (Campiglossa plantaginis), as well as for insertion of eggs into the axils of Artemisia leaves (Oxyna parietina). The most significant characters of Oxyna and Campiglossa include the presence of the hyaline apodeme and associated muscles MVM 6 and MVM 7 (instead of the median apodeme in Urophora). Thus, in other tephritid flies similarity in the structure of the ovipositor muscles may reflect similar morphofunctional adaptations to laying eggs into similar substrates, but similarity of Campiglossa and Oxyna in the structure of the ovipositor muscles is due to their close relations.
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Original Russian Text © O.G. Ovtshinnikova, A.N. Ovchinnikov, 2015, published in Entomologicheskoe Obozrenie, 2015, Vol. 94, No. 4, pp. 796–802.
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Ovtshinnikova, O.G., Ovchinnikov, A.N. Musculature of the ovipositor of Oxyna parietina (Linnaeus, 1758) (Diptera, Tephritidae) and its relation to the larval habits. Entmol. Rev. 95, 1197–1202 (2015). https://doi.org/10.1134/S0013873815090079
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DOI: https://doi.org/10.1134/S0013873815090079