| the willow bud galler euura mucronata hartig (hymenoptera: tenthredinidae): one polyphage or many monophages? | the nematine sawfly euura mucronata hartig (hymenoptera: tenthredinidae) induces galls in the buds of over 30 willow species across the holarctic region. this extensive host range is surprising, since the other euura gallers are mostly monophagous; thus, the feeding habit of e. mucronata would represent a switch from monophagy to extreme polyphagy. previous morphological studies have divided e. mucronata into separate species, but the feeding ranges of these species are unknown, and it is even d ... | 2002 | 11920137 |