JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2010, Vol. 34 ›› Issue (04): 69-73.doi: 10.3969/j.jssn.1000-2006.2010.04.016

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Two new species of Ogma Southern, 1914(Nematoda: Criconematidae) from the rhizosphere of pines in Himachal Pradesh, India

Sapna Negi1,3, Deepak C Kalia1, Harish K Bajaj2, YE Jianren3   

  1. 1.Department of Biosciences, Himachal Pradesh University, Shimla 171005, India; 2.Department of Nematology, CCS Haryana Agricultural University, Hisar 125004, India; 3.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China
  • Online:2010-08-06 Published:2010-08-06

Abstract: Two new species of Ogma from the rhizosphere of pine trees (Pinus roxburghii Sarg.; P.wallichiana A.B.Jacks) from Himachal Pradesh, India were described and illustrated. O.varispinosum sp.n.: Female,L=0.41—0.46 mm, a=10.5—12.7, b=3.2—3.5, c=11.0—13.4, c′=1.3—2.3, V=83.9 %—85.7 %, stylet=86—88 μm,R=77—81, Res=23—25, RV=12—13, RVan=4—6, 8—9 longitudinal rows of scales, different shape of first annule. O.ornamentum sp.n.: Female, L=0.31—0.37 mm, a=8.2—11.6, b=3.2—3.8, c=6.8— 8.5, V=82.0 %—849 %, stylet=69.9—72.0 μm, R=59—62, Res=16—18, Rex=20, RV=11—12, RVan=1—2. Peculiar cuticular structure.

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