Review of Kermes roboris (Geoffroy, 1785), with new records for host plants, associated ants, occurrence, Italian distribution, and nomenclatural history (Hemiptera Coccoidea Kermesidae)

The nomenclatural history of the scale insect Kermes roboris (Geoffroy, 1785) is reviewed. The authorship of this species is corrected in Geoffroy in Fourcroy, 1785 (or simply Geoffroy, 1785) and the synonymy of Lecanium quercus Burmeister, 1835 with Kermes roboris (Geoffroy in Fourcroy, 1785) is discussed and confirmed. Two new host plants of K. roboris are recorded from Spain: Quercus faginea Lam. and Q. pyrenaica Willd. First records of ant species associated to this scale insect are also given, namely Formica pratensis Retzius, 1783 and Lasius fuliginosus (Latreille, 1798), in addition to others Formicinae identified at genus level. The general and Italian distribution of K. roboris are reviewed, and the first record for the region Trentino-Alto Adige is given. Further new Spanish records from the web are also reported.