Nisitrus sumatrensis (Rehn, 1909) junior synonym of N. insignis Saussure, 1878, syn. nov. Table 2

Crystallomorpha sumatrensis Rehn, 1909: 209 .

N. vittatus – Chopard 1968 12: 352.

Nisitrus sumatrensis – Otte 1994: 67. — Cigliano et al. 2020 ( Orthoptera Species File online).

Material examined

Holotype

INDONESIA – Sumatra • ♂; R. Weber leg.; AMNH.

Type locality

Indonesia: Sumatra.

Remarks

Based on the study of the type from Sumatra, we consider N. sumatrensis as a junior synonym of N. insignis, even though the colour pattern of the types of both species is slightly different. After the examination of the material from Sumatra identified “ N. sumatrensis ” and “ N. insignis ”, we observed that the colour patterns form a continuum between a lighter version in N. insignis and the darker, more contrasting specimens previously identified as in the type of N. sumatrensis . There are also little diagnostic differences in the male and female genitalia for both series.