Plant Parasitic Nematodes From the Solomon Islands With a Description of Boleodorus Solomonensis

Abstract

Morphology and taxonomy of 14 species in 11 genera of plant parasitic nematodes collected from the Solomon Islands, are presented and discussed. Besides Eutylenchus vitiensis, Cephalenchus daisuce, Helicotylenchus erythrinae, H. hydrophilus, Criconema longulum, Ogma decalineatum, O. melanesicum, Discocriconemella limitanea, D. mauritiensis, Hemicriconemoides strictathecatus, Hemicycliophora litoralis, Xiphinema ensiculiferum and Aphelenchus isomerus, an undescribed species of Boleodorus was found, which is described here. All the species except O. decalineatum and X. ensiculiferum are new records for the Solomon Islands and four of them (Eutylenchus vitiensis, Helicotylenchus hydrophilus, Ogma melanesicum and Hemicycliophora litoralis) are rare and were found for the first time after their original descriptions. Boleodorus (Neobasiria) solomonensis n. sp. is characterized by its almost straight body, 550-650 μm long, head conical, lightly sclerotized, stylet 12.0-14.5 μm long, ovary with oocytes in one row, vulva at 53-58% of body length and tail elongate with rounded tip. Cephalenchus chilensis is synonymized with C. daisuce and Discocriconemella discolabia with D. mauritiensis. Scanning electron microscopy studies of Discocriconemella mauritiensis, Ogma melanesicum and Hemicycliophora litoralis are also included.