Sedulia

Tan, Ming Kai, Robillard, Tony & Kamaruddin, Khairul Nizam, 2016, Revision of the grasshopper genus Sedulia Stål, 1878 (Acrididae: Catantopinae) from Malay Peninsula, Zootaxa 4107 (2), pp. 255-266 : 265

Key to related genera and species of Sedulia

A key to species of Sedulia by Storozhenko (2009) used mainly measurements to differentiate the species. Here, we improve the key with the use of other female characteristics.

1. Tegmen with black shiny spot dorsal (in lateral view) or posterior (in dorsal view) half (median area)................... 2

- Tegmen with black shiny spot on ventral (in lateral view) or anterior (in dorsal view) half (costal area).................. 3

2. Male subgenital plate with long lateral lophi........................................................ Anasedulia

- Male subgenital plate without lateral lophi.................................... Grerenia (only brachypterous species)

3. Tegmina with parallel vienlets in costal field. Male tenth abdominal tergite without separated furculae along posterior margin........................................................................................... Striatosedulia

- Tegmen without parallel veinlets in costal field. Male tenth abdominal tergite with separated furculae along posterior margin 4

4. Female tegmen only reaching first abdominal tergite. Male cercus in apical third suddenly narrowed, with pointed apex................................................................................................. Leosedulia

- Female tegmen reaching third to fourth abdominal tergite. Male cercus in apical third narrowed, with truncated apex.................................................................................................... Sedulia (5)

5. Generally smaller in size: female PL = 7.3 mm; HFL = 17.3 mm; HTL = 14.9 mm. Pronotal disc with prozona 1.8 times longer than metazona (in female); with posterior margin broadly rounded. Tegmen with distal margin rounded. Shining black spot sometimes with yellow ring around the spot in females. Female hind femur brown with ventrolateral area black. Female cercus very swollen at base before tapering into an obtuse apex (in dorsal view)................................ S. specularia

- Generally larger in size: female PL = 8.6 mm; HFL = 20.0 mm; HTL = 17.1 mm. Pronotal disc with prozona about 1.5 times longer than metazona; with posterior margin angular. Tegmen with distal margin angular. Shining black spot sometimes without yellow ring. Female hind femur brown with black irregular spots along ventrolateral area. Female cercus not swollen at base (in dorsal view). [only female known]....................................................... S. perakensis