A redescription of Heterodera arenaria Cooper 1955, a cyst nematode from marram grass

Abstract

Sununary Helerodera arenana Cooper, 1955 is redescribed from marram grass (Ammophila arenana) from Gibraltar Point, Eastern England. The same species was also found on marram grass from seven other dune sites in Britain. H. arenana belongs to the H. avenae group of Helerodera species, the cyst cone is bifenestrate with prominent bullae but no underbridge. H. arenana differs from H. avenae in having a shoner vulval slit, longer second stage juveniles and larger females; in juveniles and males of H. arenana the stylet basal knobs are indented more anteriorly.