DYNAMICS OF RE-MIGRATION OF SEXUPARAE TO THEIR PRIMARY HOSTS IN THE GALL-FORMING FORDINAE (HOMOPTERA, APHIDOIDEA, PEMPHIGIDAE)

Migratory flight of sexuparae of gall forming Fordinae to 3 species of Pistacia hosts was monitored using sticky traps. Sexuparae arrived fr om late March to July. Species arrival time distributions overlapped b ut modes did not coincide. Although the Fordinae are strictly host-spe cific, sexuparae landed and reproduced not infrequently on the wrong P istacia host, a reproductive dead end. These results show that their h ost-selection ability is imperfect.