Ernoporicus caucasicus (Lindemann, 1876)

Material examined. Golestan Province, Gorgan N 36º 47' 07", E 54º 22' 20", 274 m a.s.l., on Quercus sp. , Guilan Province, Asalem N 36º 22' 09", E 53º 18' 79", m a.s.l., breeding in twigs of Pterocarya fraxinifolia, Sudabe Amini leg., 9 specimens .

Pterocarya fraxinifolia is newly reported as a host plant for E. caucasicus which has previously been reported breeding in lindens ( Tilia caucasica) ( Tiliaceae) and oaks ( Quercus spp.) (Pfeffer 1995; Bright & Skidmore 2002).

In the Russian Academy of Sciences Zoological Institute there are specimens of these species collected in Lenkoran (Southern Azerbaijan) from the same host Pterocarya fraxinifolia . These data validate the new hosts for Ernoporicus caucasicus in Iran.