Ligocatinus olivaceus

Chamorro-Rengifo, Juliana & Braun, Holger, 2010, The Tettigoniidae (Orthoptera) described by Salvador de Toledo Piza Jr. and deposited in the collection of the University of São Paulo, Escola Superior de Agricultura " Luiz de Queiroz ", Brazil, Zootaxa 2635, pp. 41-66 : 56

Ligocatinus olivaceus (Brunner von Wattenwyl, 1891)

Ligocatinus borellii ( Giglio-Tos, 1897) syn. nov.

Phaneroptera quadrivittata Piza, 1967 syn. nov.

The male holotype from south-eastern Brazil and a subsequently collected female from southern Brazil (labeled as not-described allotype) are misplaced in Phaneroptera , a genus with wide distribution in the Old World ( Ph. nana , a species recently introduced to California, is the only other Phaneroptera species recorded in the New World). The two specimens actually look like typical members of the neotropical genus Ligocatinus , and are very similar to L. olivaceus (Brunner von Wattenwyl, 1891) from southern Brazil and L. borellii ( Giglio-Tos, 1897) from southern Bolivia and northern Argentina. Piza’s male coincides in many habitus and coloration details with the male syntype of L. olivaceus (photos in OSF). The cerci seem to be a little longer. This would be diagnostic for L. longicercata from south-eastern Brazil (no images available), which was described in the paragraph preceding the descriprion of L. olivaceus . The other difference between the two species mentioned in Brunner’s (1891) key, is that the hind femora in L. longicercatus are by a third shorter than the tegmina (in male 18 vs. 29 mm), in contrast to only a little bit shorter in L. olivaceus (in male 16 vs. 20.5 mm). The measurements in Piza’s male (14 vs. 19 mm) are much closer to L. olivaceus . In combination with the near perfect agreement with the photos of L. olivaceus , we consider Phaneroptera quadrivittata identical with that species. Furthermore, L. borellii must the same species as well, since no differences are discernible (photos of a male and a female type in OSF; measurements of male hind femora and tegmina 17–18 vs. 18–20 mm). The male labeled as lectotype (designation apparently unpublished) shares with Piza’s male the yellowish pattern on the abdominal tergites, and also the cerci are very similar. For a phanteropterine tettigoniid with well-developed wings, which facilitate dispersal, the geographical records in Brazil, Bolivia and Argentina should be close enough, assuming that the ones from the latter two countries refer to lower elevations in the eastern Andean foothills of Potosí department and Jujuy province.