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Morphometric variation in the Geoica utricularia (Homoptera: Aphididae) species group on Pistacia (Anacardiaceae), with descriptions of new species and a key to emigrant alatae
Author(s) -
BROWN PAUL A.,
BLACKMAN ROGER L.
Publication year - 1994
Publication title -
systematic entomology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 66
eISSN - 1365-3113
pISSN - 0307-6970
DOI - 10.1111/j.1365-3113.1994.tb00582.x
Subject(s) - pistacia , biology , botany , key (lock) , homoptera , aphididae , ecology , pest analysis
. Variation within and between samples of emigrant alatae from galls on identified Pistacia species was studied using bivariate and multivariate techniques. The Geoica utricularia complex seems to include at least five taxa, including two newly identified; G.utricularia Passerini sensu stricto, on Pistacia terebinthus; G.muticae Mordvilko, on P.mutica; G.rungsi Davatchi & Remaudière, on P.atlantica; G.harpazi sp.n., also on P.atlantica ; and G. wertheimae sp.n. on P. palaestina. The emigrant alatae of the two new species are described, together with apterous exules reared from them, and a key is provided to emigrant alatae of all eight Geoica species now known to induce galls on Pistacia. The taxonomic status of anholocyclic, grass‐feeding populations in the Geoica utricularia group is discussed.