Nisitrus vittatus ( Haan, 1844 )

Robillard, Tony, Tan, Ming Kai, Japir, Razy & Chung, Arthur Y. C., 2023, Notes on the Eneopterinae (Orthoptera, Grylloidea, Gryllidae) from eastern Sabah, Zootaxa 5315 (3), pp. 231-250 : 240-242

Nisitrus vittatus ( Haan, 1844)

( Figs 3C , 4B )

Gryllus (Platydactylus) vittatus Haan, 1844: 234 .

Nisitrus vittatus – Saussure, 1878: 511, 653; see Tan et al., 2021: 64 for the complete list of references.

New locality records

Borneo: Sabah: Sepagaya Forest Reserve, Tabin Wildlife Reserve; Mount Silam, Kawag Forest Reserve.

Comparison with N. danum

See above.

Ecology

Found in syntopy with Nisitrus danum in some places in Sabah ( Fig. 4B ).

Distribution

Sumatra, Borneo (Sabah: Mount Kinabalu, Trus Madi, Crocker Range, Mulu, Sandakan, Kinabatangan, Danum Valley, Tawau ; Sarawak; Kalimantan; Brunei Darussalam)

Figures

FIGURE 3. Juveniles of Nisitrus: A first instar Nisitrus danum in dorsal view (A); a young juvenile of N. danum in its natural environment in Tabin (B); a young juvenile of N. vittatus in its natural environment in Sepilok (C). The red arrows on the antennae in B and C indicate the key difference in the juveniles of sympatric N. danum and N. vittatus. Scale bar: 1 mm.

FIGURE 4. Natural habitat of Nisitrus danum in Kawag Forest Reserve (A) and a J adult (in the red circle) singing in the presence of Nisitrus vittatus (in yellow circle).