Jt. Polhemus et P. Lindskog, THE STRIDULATORY MECHANISM OF NERTHRA SAY, A NEW SPECIES, AND SYNONYMY (HETEROPTERA, GELASTOCORIDAE), Journal of the New York Entomological Society, 102(2), 1994, pp. 242-248
A stridulatory mechanism is recognized for the first time for the genu
s Nerthra Say, located in the male genital capsule of all species stud
ied. Nerthra toddi NEW SPECIES replaces Nerthra mexicana, Todd 1955 (n
ec Melin, 1929). It is compared with Nerthra mexicana (Melin) (= Nerth
ra usingeri Todd, NEW SYNONYMY), with which it has been confused, Nert
hra martini Todd, and Nerthra stygica Say. N. martini, N. mexicana and
N. toddi all occur in Mexico, but are not known to be sympatric.