Thorne, 1974
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Description (from Thorne, 1974)
Body
slightly arcuate, usually somewhat twisted. Lip
region angular, set off by narrowing and depression. Spear
35 um long with broad flanged knobs, the duplex portion occupying 3/5 its
length. Esophagus
as slender tube until suddenly expanded into the basal
bulb which is about half the neck width and twice as long as wide.
Cardia simple, conoid. Anterior uterine branch a rudimentary pouch
2-3 times as long as body width, forming a large spermetheca which often
is filled with sperms. Posterior ovary slender and elongated, often
reflexed almost to vulva
and composed of 25-30 oocytes in single file. Female prerectum length
4-5 times body width.
Male tail more arcuate, with or without a single
ventromedian supplement.
Spicula with a slight
ventral angle.
Habitat: Native prairie sod in numerous locations
from Trinidad, Colorado north through Nebraska and South Dakota.
Sometimes also collected from windbreaks.
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