The odonate fauna of the Canary Islands has received much attention from European odonatologists. Twelve papers and even a small book (M. BAEZ. 1985. Las libelulas de las Islas Canarias, Act, Tenerife) are, at least partly, focused on the dragonflies of these islands. With only 10 species recorded, this attention seems somewhat out of proportion. Yet, these well-explored islands still hold some surprises. During our work in the collection of the Zoological Museum of Amsterdam, we found a 6 P. subdili-tata. labelled “Canary Islands, Tenerife, Puerto de la Cruz, 28 March 1971, J.H. Stocks”. This species was not known from the Archipelago and it was not expected there either. It is endemic to the Maghreb and widespread and common in large parts of Morocco, Algeria and Tunisia, It generally occurs at running waters, though breeding in stagnant waters as well (G. JACQUEMIN & J.- P. BOUDOT, 1999, Les like Rules du Maroc, SFO. Bois-d’Arcy; – R. JODICKE et al., 2000. Ini. J. Odonatol. 3: 41-71). As the odonate fauna of the Canaries is fairly well explored, it is unlikely that the species is indigenous.