G. it. Ent., 5 (27): 185-198
April 30, 1991
I Buprestidi della valle del Ticino sublacuale
(Coleoptera, Buprestidae)
di
MARCO BERRA
Abstract - The jewel-beetles of the Ticino Valley, to the south of Lake Maggiore (Coleoptera, Buprestidae) - 29 species of Buprestidae can be recorded from this "valley" in northern Italy; each of them is treated by an ecological point of view, focalizing their role in the complex ecosystem. More general considerations accompany the species. A theory on poly-, oligo- and monophagy in xylophagans is briefly proposed, also to explain the sympatric component which may intervene in their speciation processes.