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AbstractBursaphelenchus uncispicularis n. sp. is described and figured. The nematodewas found in wilted pine Pinus yunnanensis Franchet from a single localityin Longling county, Yunnan Province, China. The new species is characterisedby a relatively small stylet (11-15 μm long) with weakly developed basalswellings and lateral fields bearing four incisures. The male has relativelysmall, arcuate spicules with a distinct, dorsally bent, hook-like condylus,thorn-like rostrum, distinct cucullus and an ovoid terminal 'bursa' withminutely tripartite terminus. The female has a minute vulval flap and aconical tail with a relatively robust and blunt projection ca 1.2-4.5 μmlong. Both sexes are of moderate body length ranging from 676-1088 μ m inthe female and 552-1083 μm in the male with a slender body (a = 37-54 in thefemale and 36-54 in the male) and a relatively short tail (c = 26-39 in thefemale and 31-45 in the male). Bursaphelenchus uncispicularis n. sp. mostclosely resembles B. borealis, B. leoni and B. silvestris. However, the newspecies is easily distinguished from these three species by a number ofcharacters including spicule size and shape, female tail shape and length,and postvulval uterine sac length.
Nematology – Brill
Published: Jan 1, 2007
Keywords: TAXONOMY; MORPHOLOGY; NEW SPECIES; DESCRIPTION; MORPHOMETRICS
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