Key to Crematogaster kelleri group males

This male key is based on: Blaimer, B.B. & Fisher, B.L. 2013. How much variation can one ant species hold? Species delimitation in the Crematogaster kelleri-group in Madagascar. PLoS ONE 8(7): e68082 (doi:10.1371/journal.pone.0068082).

A more detailed treatment of the castes of this group can be found here: Crematogaster kelleri group

You may also be interested in:

• Key to Crematogaster kelleri group workers / queens
• Key to Crematogaster species groups of the Malagasy region
• Ants of Madagascar
• Crematogaster (genus)
• Crematogaster (subgenus)

1

• Antennae with second and third funicular segment longer than wide (Fig. 15); scutellum in dorsal view tapering greatly from anterior to posterior end, dorsoposterior part truncate (Fig. 16) . . . . . 2

Figure 15. Antennae with second and third funicular segment longer than wide C. kelleri

Figure 16. Scutellum in dorsal view tapering greatly from anterior to posterior end, dorsoposterior part truncate C. kelleri

• Antennae with second and third funicular segment globular, as long as wide (Fig. 17); scutellum in dorsal view moderately tapering (Fig. 18) . . . . . 3

Figure 17. Antennae with second and third funicular segment globular, as long as wide C. hazolava

Figure 18. Scutellum in dorsal view moderately tapering, dorsoposteriorly pointed C. hazolava

2

return to couplet #1

• Body size medium (HW 0.63, WL 1.18) . . . . . Crematogaster tavaratra

• Body size medium to small (HW 0.47–0.60, WL 0.85–1.19) . . . . . Crematogaster kelleri

3

return to couplet #1

• Scutellum and metanotum dorso-posteriorly pointed (Fig. 18) . . . . . Crematogaster hazolava

Figure 18. Scutellum in dorsal view moderately tapering, dorsoposteriorly pointed C. hazolava

• Scutellum and metanotum dorso-posteriorly rounded . . . . . Crematogaster madagascariensis