Mesoleptobasis

Garrison, Rosser W. & Ellenrieder, Natalia Von, 2009, Redefinition of Mesoleptobasis Sjöstedt 1918 with the inclusion of Metaleptobasis cyanolineata (Wasscher 1998) comb. nov. and description of a new species, Mesoleptobasis elongata (Odonata: Co, Zootaxa 2145, pp. 47-68: 51-52

publication ID

http://doi.org/ 10.5281/zenodo.188653

persistent identifier

http://treatment.plazi.org/id/03FC87D3-EB06-FF85-01B2-F8BA87F54093

treatment provided by

Plazi

scientific name

Mesoleptobasis
status

 

Key to Females of Mesoleptobasis 

1. Pronotum with projections (as in Fig. 4 a; Fig. 5 d) ............................................................................................. 2

1 '. Pronotum lacking projections, its posterior margin slightly bi-or trilobate ( Figs. 5 a, b, e, f) .................................... 3

2. Pronotal projections in dorsal view with a common stem and apices directed dorso-laterally ( Fig. 5 d); Guyana and Saramacca and Marowijne Districts in Surinam ( Fig. 21View FIGURE 21) ............................................................ M. cyanolineata 

2 '. Pronotal projections in dorsal view with no common stem, acuminate apices directed laterally (as in Fig. 4 a); Rondônia State in Brazil............................................................................ M. sp. ( M. acuminata sensu Santos, 1961  )

3. Costal side of FW pt shorter than basal side, its posterior margin convex ( Fig. 12View FIGURE 12 a); posterior lobe of pronotum trilobate with medial lobe smoothly convex and extending posteriorly beyond level of lateral lobes ( Fig. 5 a); Amazonian region of Peru ( Fig. 21View FIGURE 21) ........................................................................................................ M. acuminata 

3 '. Costal side of FW pt subequal to longer than basal side, its posterior margin slightly convex ( Figs. 12View FIGURE 12 b, 13 b –c); posterior lobe of pronotum bi- or trilobate, in the latter case medial lobe reaching same level as lateral lobes posteriorly ( Figs. 5 b, c, e –g).............................................................................................................................................. 4

4. FW CuA ending one or two cells proximal to vein descending from subnodus ( Fig. 13View FIGURE 13 b); Para District in Surinam and Amazonas State in Brazil ( Fig. 21View FIGURE 21) ............................................................................................. M. elongata 

4 '. FW CuA ending at or one or two cells distal to vein descending from subnodus ( Fig. 12View FIGURE 12 b, 13 c) ............................ 5

5. Middle lobe of hind margin of prothorax bent anteriorly ( Figs. 5 f, g); ovipositor surpassing tip of cerci for a distance shorter than length of cerci ( Fig. 16View FIGURE 16 e); Amazonas State in Venezuela and Amazonas and Rondônia States in Brazil ( Fig. 21View FIGURE 21) ............................................................................................................................................... M. incus 

5 '. Middle lobe of hind margin of prothorax not bent anteriorly ( Figs. 5 b, c); ovipositor surpassing tip of cerci for a distance subequal to length of cerci ( Fig. 16View FIGURE 16 b); Amazonas and Rondônia States in Brazil ( Fig. 21View FIGURE 21) .............. M. cantralli