Figure 1.
Holotype worker (USNMENT00758173) (A, C, E) and Paratype gyne (USNMENT00758174) (B, D, F) of Cyatta abscondita.
(A, B) Full-face view. (C, D) Lateral view. (E, F) Dorsal view.
Figure 2.
Paratype worker (USNMENT00758223) of Cyatta abscondita.
(A) Habitus, lateral view. (B) Head, lateral view, indicating palp formula. (C) Head, full-face view. (D) Clypeal apron indicating origin of median unpaired seta. (E) Metasoma, posterior view. Pygidium (p) ‘V’-shaped, hypopygium (hyp) triangular. (F) Metasoma, ventral view, showing the median emargination of the pygidum and the triangular shape of the hypopygium.
Figure 3.
Male of Cyatta abscondita (USNMENT00758204).
(A) Full-face view. (B) Lateral view. (C) Dorsal view. (D) Wings: forewing (top), hindwing (bottom). Cells: basal (BC), costal (CC), submarginal (SMC1), marginal (MC), subbasal (SBC), and discal (DC1).
Figure 4.
(A) Lateral view. (B) Ventral view. (C) Head, dorsal view. (D) Head, anteroventral view. (E) Anchor-tipped hairs on dorsum. (F) Anal region (white arrows indicate setal sockets; ventral at top).
Figure 5.
Known distribution of Cyatta abscondita.
Figure 6.
(A, B) Fazenda Agua Limpa (FAZ). (A) Excavation of nest JSC100412-01 in dormitory garden area. (B) Cerrado senso stricto, where colonies were found on the side of the road. (C,D) Nest entrance of Cyatta abscondita (white arrows). (C) Worker entering nest. (D) Nest entrance of Cyatta abscondita, consisting of an inconspicuous ~1mm diameter hole in the ground. (E) Chamber with pendant fungus garden. (F) Excavation of nest 4 (JSC110920-01). Black bars indicate two chambers, the lower one 104 cm below the surface.
Figure 7.
Phylogenetic position of Cyatta abscondita.
This phylogeny of 66 fungus-farming and 26 outgroup ant species results from a Bayesian analysis of four nuclear protein-coding genes (see text for details). Fungus-farming ant species are indicated by bold black branches; the branch subtending Cyatta abscondita is indicated in red. Gray branches correspond to non-fungus-farming taxa. Blue dots on branches represent Bayesian posterior probabilities of 100; orange dots represent Bayesian posterior probabilities of 95–99. Divergence time of Cyatta and Kalathomyrmex estimated at 26 Ma (95% CI= 18–34) and divergence of the clade (Cyatta + Kalathomyrmex) from the rest of the Neoattini estimated at 44 Ma (95% CI= 37–51).