Liratella nigra

Identification
Jet black, the wings hyaline, the venation colorless, the legs pale lemon yellow, except the concolorous coxae. Tegulae brown, the antennae concolorous with the legs; scutum transeversely striate, the axillae, parapsides and scutellum smooth, also the abdomen and face; occipial margin of Vertex acute. Propodeum dorsally smooth, with a median sulcus and delicate but distinct lateral carinae. Last four funicle joints wider than long.

Distribution
Paraguay

Biology
Host ant:

Description
Female: Like Lirata Cameron but the third joint, though nearly twice longer than the fourth is only a fourth the length of the funicle; noring-joint;scutellar proscesses longitudinally carinate but the scutellum smooth; mesonotum hump-backed; distaj funicle joints wider than long, the club single. Thorax with a median groove. Male: The same but the abdomen smaller, compressed, the moderate petiole distinctly longer; the antennae 11-jointed, each funicle joint bearing from the same side a long branch, the distal joint two of them from its apex; scape short, pedicel wider than long, the short funicle joints transverse, the first and last longest. Ten antennal branches.