Microcentrum

Da Silva Sovano, Rafael S. & Cadena-Castañeda, Oscar J., 2015, New species of Microcentrum Scudder, 1862 (Orthoptera: Tettigonioidea: Phaneropteridae) from Amazon rainforest, Zootaxa 3937 (3), pp. 591-600: 598

publication ID

http://dx.doi.org/10.11646/zootaxa.3937.3.10

publication LSID

lsid:zoobank.org:pub:3A502C96-AFE2-490B-B076-AA62BE7B2F48

persistent identifier

http://treatment.plazi.org/id/038887D3-FFE0-FFCD-80FF-FB20FA52F89D

treatment provided by

Plazi

scientific name

Microcentrum
status

 

Key to the species of Microcentrum   from the Amazon rainforest

1. Coloration mostly dark-green or light-green. Veins of tegmen not delineated. Costal vein without yellow spots or inconspicu- ous when present...................................................................................... 2

- Coloration light-green. Veins of tegmen delineated yellowish-green. Costal vein with conspicuous yellow spots................................................................................................... M. xavieri   n. sp.

2 (1). Anterior margin of the pronotal disc without projection....................................................... 3

- Anterior margin of pronotal disc with a triangle-shaped projection in the median portion.................... M. navigator  

3 (2). In dorsal view, stridulatory field dark-brown or black color........................................ M. lanceolatum  

- In dorsal view, stridulatory field without the color pattern above............................................... 4

4 (3) Fastigium two times wider than antennal scape. Central ocellus larger than the antennal pedicel. Tegmen slightly lanceolate, expanding in the median portion of the costal margin......................................................... 5

- Fastigium as wide as antennal scape. Central ocellus smaller than the pedicel antennal. Tegmen completely lanceolate, without expansions in the median portion of the costal margin................................................ M. irregular  

5 (4) Tegmen semicoriaceus. Pronotal disc smooth................................................................ 6

- Tegmen coriaceus. Pronotal disc densely porous.................................................... M. nauticum  

6 (5) Medium size (50 mm), tympanic area light-brown pigmented. Lanceolate epiproct, longer than wide. Stylus of the subgenital plate twice as long as a emargination in the posterior margin of the subgenital plate................. M. amacayacu   n. sp.

- Small size (35 mm). Tympanic area without pigmentation. Triangular-shaped epiproct, almost as long as wide. Stylus of the subgenital plate four times longer than the emargination in the posterior margin of the subgenital plate...... M. surinamense