Description of Quinisulcius solani n.sp. (Nematoda: Tylenchorhynchidae) with a Key to the Species and Data on Scutylenchus koreanus from Pakistan
Abstract
A new species. Quinisulcius solani, is described and illustrated from specimens on Solanum tuberosum from Murree Hills, Pakistan. Q. solani n.sp. differs from its closest relative, Q. acutus (Allen, 1955) Siddiqi, 1971, by its spiral to open 'C' shaped body and stylet length of 19 [mu]n, vs. 17 [mu]m in Q. acutus. In Q. acutus the stylet knobs project anteriorly but slope posteriorly in Q. solani n.sp. Tail annules number 17 in Q. acutus but 38 in Q. solani n.sp.; also the phasmids in the former species are at mid-tail and in the latter are in anterior half of tail, at about 34%. Q. solani n.sp. is also closely related to Q. capitatus (Allen, 1955) Siddiqi, 1971 but differs in some characters. Head annules number eight and stylet length is 17 [mu]m in Q. capitatus, but head annules are six and stylet length is 19 [mu]m in Q. solani n.sp. In Q. capitatus T/ABW is 3 vs. 2.2 in Q. solani n.sp. Also, phasmids are located at mid-tail on Q. capitatus but at ahout one-third of the tail on Q. solani n.sp. A key to the 10 species of Quinisulcius is also presented. Scutylenchus koreanus (Choi & Geraert, 1971) Siddiqi, 1979 is recorded for the first time in Pakistan and morphometric data and illustrations given. Key words: taxonomy, new species, key.Downloads
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