寄生于粘虫的卵索线虫属一新种——中华卵索线虫(线虫纲:索科)  

A NEW SPECIES OF PARASITIC NEMATODE OF ARMY WORM: OVOMERMIS SINENSIS SP. NOV. (NEMATODA: MERMITHIDAE)

作　　者：陈果[1] 简恒[1] 任惠芳[1] 潘沧桑[2] 

机构地区：[1]中国农业科学院生物防治研究所,北京100081 [2]厦门大学生物系寄生动物研究室,361005

出　　处：《动物分类学报》1991年第3期270-277,共8页Acta Zootaxonomica Sinica

摘　　要：本文报道从河南省驻马店地区和山东省临沂地区麦田内采集的粘虫幼虫的寄生线虫优势种卵索线虫属一新种,命名为中华卵索线虫,新种Ovomermis sinensis sp.nov.A species of parasitic nematode was collected from the infected larvae of army worm (Mythimna separata Walker) in Zhu Ma Dian Prefecture, Henan Province and Lin Yi Prefecture, Shangdong Province (about 32° -35° N, 114°-119° E) in 1983-1986, It is identified as a new species of genus Ovomermis Rubzov, 1976,Ovomermis sinensis sp. nov. (figs. 1-15).Measurements are in micrometer unless otherwise indicated.Adults Body elongate, white in colour, tapered in the head region and tail region, blun- tly rounded at anterior end and posterior end; a shallow constriction in female head region. Cross fibers present in the cuticle, six hypodermal chords; mouth opening terminat; six cephalic papillae arranged in one plane on the left and right sides; amphids small in size, bacl-lliform, situated near the dorsal bases of lareral cephalic papillae; a small oblate chamber located at the midregion of lateral cephalic papilla of male adult, the amphidial opening placed behind and dorsal to the small oblate chamber.A pair of cervical papillae formed by narrow tubes, ear shaped, situated laterally, close behind the head, with some ducts leading to the surface of cuticle, Esophagus relatively short and less folded; nerve ring well developed; excretory pore not observed. Vulva elevated slightly, long shuttle shaped or winding fissure shaped, located posterior to midbody region; vagina U-shaped, anterior region expanding a vul-val cone with inner cavity crisscross form. Female and male genital tubes didymous. A papilla located at the ventral side of posterior part of female adult, has an indistinct tube which perhaps is the residue of anus. Spicules paired, curved slightly, shorter than the body width at cloaca and the tail length; cloaca pore flat-oblong.Female(n = 16) Body length 192(114-238)mm; body width at the level of cephalic papillae 75.8(58.3-89.9), at nerve ring 156.9(136.8-187.1), at vulva 330.8(264-407) and at the posterior end of trophosome 236.6(175.2-298.9), giving a ratio of 1:2.1:4.4:3.1. Distance from nerve ring to m

关 键 词：卵索线虫属 新种 中华卵索线虫 

分 类 号：Q959.171[生物学—动物学]