Two new species of the genus Cephalenchus (Goodey, 1962) Golden, 1971 with a key to species* Sultan M. Sarwat**, Jairajpuri M. Shamim Section of Nematology, Department of Zoology, Aligarh Muslim University, Aligarh-202001. * This work was carried out in the All India Coordinated Research Project on Nematode pests of crops and their control, sponsored by Indian Council of Agricultural Research, New Delhi-110001. ** Present address: Department of Plant Pathology, Punjab Agricultural University, Ludhiana-141004. Abstract Two new species of Cephalenchus (Goodey, 1962) Golden, 1971 from Almora and Nainital districts of Uttar Pradesh, India are described and figured. C. cylindricus sp. n. is characterized in having a body 0.62–0.75 mm long, broadly hemispherical head with well sclerotized cephalic framework and ring, 20–21 μm long spear, oesophagus measuring 98–108 μm with cylindrical basal bulb, anteriorly located vulva, a long tail measuring 190–225 μm and in the absence of males. This new species is close to C. leplus (Siddiqi, 1963) Golden, 1971 and C. emarginatus (Cobb, 1893) Golden, 1971. C. cephalodiscus sp. n. is characterized in having a body 0.62–0.69 mm long, broadly hemispherical head with 2–3 annules, 20–21 μm long spear, prominent cardia, anteriorly located vulva, spermatheca with sperms and a shorter tail. The male is characterized in having a shorter body measuring 0.59 mm, 15 p.m long spicules and 28 μm long bursa. This new species is close to C. leptus (Siddiqi, 1963) Golden, 1971 and C. lobus Dhanachand and Jairajpuri, 1980. A key to the species of the genus is given. Top |