Indian Journal of Nematology

Twelve species of Ditylenchus including 5 new species have been reported from Haryana state of India. D. hisariensis n. sp. Female: L=0.99–1.25 mm, c=11.8–17.1, c’=4.2–56., V=82.4–86.2, median bulb heart-shaped with slight thickening of valvular apparatus, crustaformeria quadricolumelate, tail short with sharply tapering posterior half and ending in a pointed terminus; D. zeae n sp. Female: L=0.69–0.81 mm, c=14.1–16.4, c’=3.5–4.5, V=82.5–84.5, MB=27.1–29.7, with distinct valvular apparatus, crustaformeria quadricolumellate, tail tapering gradually to end in a rounded terminus; D. triticus n. sp. Female: L=0.49–0.65 mm, c=7.6–9.8, c’=3.7–4.8, V=77.2–83.1, median bulb without valvular apparatus, genital tract forming a loop in the region of spermatheca, crustaformeria with 7–10 cells in each row, tail with hyaline region and a rounded terminus; D. robustus n. sp. Female: L=0.43–0.51 mm, c=9.1–10.8, c’=21.–4.1; V=79.8–82.0, median bulb without valvular apparatus, crustaformeria with 7–9 cells in each row, genital tract three to four times coiled between spermatheca and crustafomeria, tail elongated conoid with a pointed terminus; D. bhattii n. sp. Female: L=0.66–0.86 mm, c=7.5–13.0, c’=4.0–5.7, V=80.2–83.0, median bulb without valvular apparatus, crustaformeria with five cells in each row, tail with a dull-pointed terminus. Populations of D. mirus Siddiqi, 1963, D. medicaginis Wasilewska, 1965 and D. oryzae (Mathur et al., 1966) Fortuner & Maggenti, 1987 occurring in the state were compared with their original descriptions and commented upon.