Photo Gallery- Nine-mile Prairie
lying in an almost closed C shape when relaxed by gentle heat.
region truncate,three times as wide as high. Cephalic framework lightly
about 10u long with well developed knobs. Terminus
minutely rounded. Ditylenchus obesus is distinctive because of the
obese body which somewhat resembles an Anguina, pyriform
basal bulb, elevated
labia of vulva, large eggs and vulva-anus distance 1 3/4 times tail
(Descripton- Thorne and Malek, 1968)
Female: L = 1. mm; a = 28; b = 8; c = 12.5; V = 79%.
Height of cephalic capsule only 1/3 diameter of its base, capsule rounded. Stylet 10u. Stylet heads spherical, large. Protractors obliquely oriented. Procorpus long, narrowed posteriorly. Metacorpal bulb strong, convex-oval, with sharply sclerotized valves. Nerve ring in anterior part of isthmus. Cardial bulb very large, rounded-pear-shaped, separated from the intestine by a deep constriction. Excretory pore and hemizonid opposite anterior part of cardial bulb. Ovary very long, its apex reaching or even passing the level of the nerve ring. Posterior uterus longer than corresponding body diameter. Vulva with developed lips; no anal protuberance. Tail conical, with pointed terminus. Found in grain, apparently wheat fields. Nebraska.
(Description- Skrjabin, 1970)