Several taxonomical remarks on Palaearctic Cerambycidae (Coleoptera) with two new names and two new taxa

Neoplagionotus bobelayei huseyini, new name is proposed for a subspecies of N. bobelayei, separated by Özdikmen & Ali (2016) from South Russia, Transcaucasia, North Turkey and North Iran with unvalid name (junior homonym) “Plagionotus speciosus specious (Adams, 1817)”. Xylotrechus ilamensis zuvandiense, ssp. n. is described from Talysh area of Azerbaijan and from Mazandaran (Iran). Phytoecia (Helladia) demeltiana, new name is proposed as a replacement name for a secondary junior homonym Phytoecia (Helladia) demelti (Sama, 2003). Stictoleptura (Pyrrholeptura subgen. nov.) is described for a single species Stictoleptura (Pyrrholeptura) pyrrha (Bates, 1884)