Colposcenia osmanica Vondracek 1953

Colposcenia osmanica Vondráček, 1953 Colposcenia kiritshenkoi Loginova, 1960: 57, syn. nov. Feeds on Colposcenia osmanica (as C. kiritshenkoi) has been recorded from Tamarix negevensis Zohary, T. parviflora DC., T. ramosissima Ledeb., T. senegalensis DC. and T. smyrnensis Bunge (Gegechkori and Loginova 1990, Spodek et al. 2017). In Bulgaria, we collected adults on T. ramosissima and perhaps also T. tetrandra Pall. ex. M. B., which often grows together with the first species in mixed stands. Distribution General distribution. South-eastern Europe (Bulgaria, Ukraine, southern Russia), Middle East, Caucasus, Central Asia. Distribution in Bulgaria (Fig. 12 d). Published records: ROP (Klimaszewski 1963, Klimaszewski 1965, Głowacka 1989), Bulgaria, without locality data (Gegechkori and Loginova 1990; as C. kiritshenkoi, Maryańska-Nadachowska (2002)); ROV (Pramatarova et al. 2024). Material examined: BN, BS, DW, PBT, ROM, ROP, ROV, RPP, RRE, SPE. Diagnosis Adult (Fig. 12 a, b, c). Vondráček (1953), Loginova (1974 b); Loginova (1960), Loginova (1974 b), as C. kiritshenkoi. Based on numerous specimens collected at different times at several places in Bulgaria, we conclude here that C. osmanica and C. kiritshenkoi are seasonal forms of one and the same species, differing only in their colouration (C. osmanica - summer form, C. kiritshenkoi - overwintering form). Both colour forms were collected by us in Bulgaria (Fig. 12 a, b). The male and female terminalia of specimens from Bulgaria are illustrated in Fig. 12 c. Further details on the proposed synonymy can be found in the ' Discussion' section below.