Description (from Sher & Allen, 1953)
Female: Cuticle with transverse striae, about 1 um apart. Lateral field marked by four incisures. Lip region bears three annules not set off from body. Outer margin of heavily sclerotized labial framework extends conspicuously into body about two body annules and into lip region about one annule. Spear-guiding apparatus extends posteriorly from basal plate about four body annules. Spear 18 um long, broadly rounded basal knobs. Orifice of dorsal esophageal gland about 3 um behind spear base. Nerve ring surrounds esophagus just behind excretory pore. Hemizonid about one annule above excretory pore and about two annules long. Ovary does not extend to esophagus, consists of single row of oocytes except for a multiple row near anterior end. Spermatheca or spermatozoa not seen. Oviduct indistinct. Uterus short. Posterior uterine branch a little more than one and one-half times width of body at vulva. Phasmids slightly posterior to middle tail. Four lateral lines extend past phasmid. Tail bluntly rounded, no striations around terminus.
Male: Similar to female. Single outstretched testis consists of spermatocytes arranged in single row followed by region of multiple rows. Phasmids slightly posterior to middle of tail, do not extend into bursa. Spicula arcuate, hafted, rest upon trough-shaped gubernaculum.
Type Host: Around roots of grass.
Type Locality: University of California campus, Berkeley, California.
DNA Sequences Obtained
|Que 77-6||Quebec, Canada|
|Que 77-3||Quebec, Canada|