Mikrischyrum, Cadena-Castañeda & Rodríguez & Res & Rodríguez & Arias, 2021

Cadena-Castañeda, Oscar J., Rodríguez, Nixon Oscar Parra, Res, Gustavo Costa Tava-, Rodríguez, Diana Marcela Trujillo & Arias, Ronald Fernando Quintana, 2021, Studies on Neotropical Pseudophyllinae: The status of the genus Brachyauchenus Brunner von Wattenwyl, 1895 and its species (Orthoptera: Tettigoniidae: Pseudophyllinae: Platyphyllini), Zootaxa 5027 (4), pp. 546-562 : 558

Key to Mikrischyrum n. gen. species

1. Very small species (12 mm.). Posterior margin of pronotum truncate; pronotal disc elongated, L/W ca 2.0; tegmina covering the apex of the abdomen; all genicular lobes armed with elongated spines, the most conspicuous being those of the internal lobes of the fore and middle legs, and the outer genicular lobes of the hind femora has the longest spine............................................................................................. M. minutus ( Nickle, 2006) n. comb.

- Small species (21 mm.) ( Fig. 7A ). Posterior margin of pronotum convex; pronotal disc proportionally smaller, L/W ca 1.6 ( Fig. 7B ); tegmina not covering the last two or three abdominal segments ( Fig. 7A ), only the external genicular lobes of the posterior femora armed by a medium-sized spine, the other genicular lobes unarmed............ M. festae ( Griffini, 1896) n. comb.

Figures

FIGURE 7. Mikrischyrum festae Griffini, 1896 n. comb. Male habitus A. Lateral and B. Dorsal view. (Photos: © Orthoptera Species File reproduced with permission).