Chaetorellia jaceae (Robineau-Desvoidy, 1830)

Korneyev, V. A. & Troshyn, A. M., 2022, Aberrant Chaetotaxy In The Species Of Terelliini (Diptera: Tephritidae), Ukrainska Entomofaunistyka 13 (2), pp. 29-31 : 30-31

Chaetorellia jaceae (Robineau-Desvoidy, 1830) ( Figs 2 , 4–5 )

Material. Ukraine: Kyiv Region: Mryhi , [50.26N, 30.57E], 26.06.2006, 1 ♂ (E. Kameneva), Khodosiivka , [50.23N, 30.53E], 18.07.2009, 1 ♂ (S. Korneyev) ( SIZK) .

This is a common species widespread from Western Europe to Central Asia infesting flower heads of Centaurea jacea and C. nigra . The. males on Figs 4–5 have an aberration of chaetotaxy hitherto not described for Chaetorellia species: one presutural or one postsutural dorsocentral seta are lacking only on the right side of mesonotum.

Figures

Figs 1–3. Orellia falcata (1,3) and Chaetorellia jaceae (2): 1, 2 — normal chaetotaxy and dark pattern of mesonotum; 3 — habitus, dirsal view, showing aberrant chaetotaxy and dark pattern of mesonotum (arrows show supernumerary setae and dark spots).

Figs. 4–5. Chaetorellia jaceae: aberrant chaetotaxy and dark pattern of the mesonotum (arrows show the absent setae and dark spots).