Leptomyrmex species

Smith, Derek J. & Shattuck, Steve, 2009, Six new, unusually small ants of the genus Leptomyrmex (Hymenoptera: Formicidae), Zootaxa 2142 (1), pp. 57-68: 58-59

publication ID

http://doi.org/ 10.11646/zootaxa.2142.1.5

publication LSID

lsid:zoobank.org:pub:B3414A2D-1D66-4955-A3A0-E2A5D0AB64E8

persistent identifier

http://treatment.plazi.org/id/03E687DE-FFB0-FFA9-FF08-F994FA18FEAB

treatment provided by

Felipe

scientific name

Leptomyrmex species
status

 

Key to the workers of micro- Leptomyrmex species   based on workers

1. Scapes short (scape length <1.1 mm, SI <150, Fig. 20 View FIGURES 19–20 ); head short (CI> 82, Fig. 19 View FIGURES 19–20 ); hind tibial spurs with barbules approximately as long as spur diameter ( Fig. 24 View FIGURES 23–24 ) ........................................................................... ramorniensis  

-. Scapes long (scape length> 1.0 mm, SI> 170, Fig. 20 View FIGURES 19–20 ); head long (CI <81, Fig. 19 View FIGURES 19–20 ); hind tibial spurs with barbules approximately half as long as spur diameter ( Fig. 23 View FIGURES 23–24 ) ................................................................................................. 2

2. Pubescence long, dense and decumbent ............................................................................................................ pilosus  

-. Pubescence short, sparse and adpressed ..................................................................................................................... 3

3. Petiolar node flat dorsally in anterior view ................................................................................................... aitchisoni  

-. Petiolar node convex dorsally in anterior view ........................................................................................................... 4

4. Antennal scapes relatively long (SI> 220, Fig. 20 View FIGURES 19–20 ), extending beyond vertex by more than half their length ............. ................................................................................................................................................................ dolichoscapus  

-. Antennal scapes relatively short (SI <220, Fig. 20 View FIGURES 19–20 ), extending beyond vertex by about half their length ................ 5

5. Anterior mesonotum raised into a bump ( Fig. 5 View FIGURES 1–6 ), dorsum of node highly and uniformly convex in anterior view....... .......................................................................................................................................................................... burwelli  

-. Anterior mesonotum without a raised bump ( Fig. 11 View FIGURES 7–12 ), dorsum of node weakly convex in anterior view, the sides more strongly curved than the central region .................................................................................................... garretti