STUDIES ON PLANT PARASITIC NEMATODES ON ECONOMICALLY IMPORTANT CROPS IN FUJIAN Ⅲ. DESCRIPTION OF MELOIDOGYNE FUJIANENSIS N. SP. (NEMATODA: MELOIDOGYNIDAE) INFESTING CITRUSIN NANJING COUNTY
PAN CANGSANG (Parasitology Research Laboratory, Xiamen University, Fujian)
Meloidogyne fujianensis sp. nov. (fig. 1-10)Female: Stylet 11.4-12.6 μ long; dorsal gland opening 3.6-5.4 μ from stylet base. Excretory pore situated 2-4 stylet length behind the head apex. Posterior cutieular pattern oval in shape. Arch moderate in height. A small swelling with a central pit outside the right edge of the vulva.Male: Dorsal gland duet opening 5.4-7.2 μ behind stylet base. Lateral field consisted of 3 unareolated bands (4 incisures).Second-stage larva: 348-464μ in length; a=20-26, c=7.8-10.1, stylet is 13-14 μ long. Hemizonid situated at same level of the excretory pore. Rectum undilated.Posterior cutieular pattern: Vulva 22.4-25.2 μ in width and 16.1-19.6 μ from anus; interphasmidial distance 15.4-25.2 μ; distance from anus to an imaginary line joining the phasmids: 7-8.4 μ.Holotype allotype and paratype specimens are deposited in the Parasitology Research Laboratory, Xiamen University, Fujian.Host-plants: Citrus reticulata Blanco.Locality: Nanjing County, Fujian, China.Prevalence: 30-60% of Citrus plants were infected with this nematode from July to September, 1983.Remarks: The most important distinguishing feature of Meloidogyne fujianensis n. sp. is that the female has a small swelling with a central pit outside the edge of the vulva.