Anisarthron cyrus, an endemic species to Azerbaidjan and N Iran, develops analogously to its close relative Anisarthron barbipes (Schrank, 1781). Anisarthron cyrus is broadly polyphagous on deciduous trees preferring Fagus, Carpinus, Quercus, and Alnus. The limiting factor is the presence of a substrate convenient for its development. It comprises dead red-brown moist wood of wounded living trees (bases of dead branches, wounds in bark of trunks, etc.). The contact of the substrate with living tissue seems to be essential for the development of this beetle. The adult beetles are frequently found sitting on barkless wounds of living trees.
The beetle in the pictures was found sitting on a wound of a living Acer species in N Iran, prov. Mazandaran, Calus.
MH & MR © April 20, 2006
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