Three new genera and new species of hystrignathid nematodes (Nematoda: Thelastomatoidea) from passalid beetles (Insecta: Passalidae) from Yunnan Province, China with phylogenetic analysis of Hystrignathidae Author Zhang, Ningning Author Yin, Shi Author Carreno, Ramon A. Author Zhang, Luping text Zootaxa 2021 2021-11-23 5071 2 206 222 journal article 3292 10.11646/zootaxa.5071.2.2 15c88b50-3c7a-48c4-981d-6d9239529e04 1175-5326 5723542 2D907411-3227-409E-B644-2FB86937D2FF Huntia gen. n. Diagnosis : Female body robust. Cervical cuticle unarmed, without annulation. Body cuticle with distinct transverse striations and longitudinal striations. Lateral alae present. Head well developed, continuous with body but without transverse and longitudinal striations. Head bearing eight rounded papillae arranged in 4 pairs. First cephalic annule absent. Oesophagus consisting of a muscular, sub-cylindrical procorpus, short isthmus, and spherical basal bulb with valve plate well developed. Vulva located near mid-body. Vagina muscular, anteriorly directed. Didelphic-amphidelphic. Eggs ovoid, ornamented with rough longitudinal ridges on shell. Eggs arranged transversely in single row in uteri. Tail conical, subulate, ending in a sharp tip. Male unknown. Type species : Huntia morffei gen. n. et sp. n. Distribution : China . Etymology : The generic name is derived from Dr. D. J. Hunt, Commonwealth Institute of Parasitology, England .