Letana Walker, 1869

Nagar, Rajendra & Swaminathan, R., 2015, Occurrence of a new species of Letana (Orthoptera: Tettigoniidae: Phaneropterinae) in India, Zootaxa 4044 (3), pp. 429-445 : 430

publication ID

https://dx.doi.org/10.11646/zootaxa.4044.3.6

publication LSID

lsid:zoobank.org:pub:B51198D2-94B2-474D-8FAD-33425E4CE343

DOI

https://doi.org/10.5281/zenodo.5662353

persistent identifier

https://treatment.plazi.org/id/BA07879D-FFAC-1256-FF0E-F8B3EED7FC27

treatment provided by

Plazi

scientific name

Letana Walker, 1869
status

 

Genus Letana Walker, 1869

Diagnosis. The genus is of medium size, slender, quite delicate, often parapterous, but brachypterous forms also exist; usually green, rarely colourful species with a bilobate and arcuate sub-genital plate in the male; occiput is convex, fastigium vertices narrow, dorsally sulcate, distally depressed, circa right-angularly inserted with fastigum frontis; antennae thin ( Ingrisch, 1990). Pronotum short with disc almost flat, first transverse sulcus sub-interrupted in the middle; second transverse sulcus small, V- or Y-shaped, anterior margin concave, posterior margin straight to convex; tegmina translucent to opaque, with an irregular network of veinlets between the principal veins; branching of radial sector visible before or in the middle of tegmina; stridulatory file arcuate, sub-straight or sinuate, sometimes complex in structure, stridulatory pegs usually dense at the anterior end, larger and distinctly separated in the middle and at posterior end; prosternum obtuse, meso- and meta-sternum sub-lobate; tibial tympana open on both sides; ninth tergite arcuately prolonged behind and more or less covering abdominal apex; the 10 th tergite fused with epiproct to a large and highly modified supra-anal plate of varying shape, sub-basally bowed down in 45 0 to 90 0 angles, with or without lateral appendages.