Tersomia Kirby, 1904

Original Description

Antennae only one third the length of the front femora, 23-jointed; scape flattened, twice as long as broad; second joint rather longer than broad, flattened, narrower than the scape, the rest slender, linear; third joint the longest, three times as long as broad, the fourth scarcely longer than broad, the rest gradually increasing in length to beyond the middle and then gradually shortening to the extremity. Head considerably longer than broad, narrowed behind, with a pair of short, stout, very obtuse horns on the vertex between the eyes. Legs and body long, slender, smooth, legs nearly straight; tibiae carinated to the extremities, terminal spines of the front femora and outer side of the middle femora very slightly marked, those on the inner side of the middle femora and on both sides of the hind femora more conspicuous; first joint of tarsi at least as long as all the rest together; median segment fused with the metanotum, longer than broad; segments 2-7 of the abdomen from two to four times longer than broad; three terminal segments slightly longer than broad, carinated above, terminating in a very long operculum, trifid at the extremity.
Appear to be allied to Clonistria, Stål, but with much shorter antennae and very long operculum.

Geographic distribution. Brazil.

Systematic position.
Superfamily Phasmatoidea | Family Bacteriidae | Tribe Hesperophasmatini