Table 1.
Acromyrmex spp. cytogenetically studied in this paper. Locality, sample size (number of colonies/individuals stained with Giemsa), diploid (2n) and haploid (n) chromosome number and karyotypic formula.
| Acromyrmex species | Locality (coordinates) | Colony – Individuals | 2n (n) | Karyotypic formula |
|---|---|---|---|---|
| Acromyrmex (Moellerius) balzani (Emery, 1890) | Viçosa – MG – Brasil (20°45'S; 42°51'W) | 3 – 12 | 38 | 2n = 12m + 10sm + 14st + 2a |
| Acromyrmex (Moellerius) balzani (Emery, 1890) | Paraopeba – MG – Brazil (19° 17'S; 44° 29'W) | 2 – 15 | 38 | 2n = 12m + 10sm + 14st + 2a |
| Acromyrmex (Acromyrmex) coronatus Fabricius, 1804 | São Tiago – MG – Brazil (20°54'S; 44°30'W) | 1 – 10 | 38 (19) | 2n = 12m + 8sm + 16st + 2a |
| Acromyrmex (Acromyrmex) coronatus Fabricius, 1804 | Paraopeba – MG – Brazil (19°17'S; 44°29'W) | 5 – 20 | 38 | 2n = 12m + 8sm + 16st + 2a |
| Acromyrmex (Acromyrmex) disciger (Mayr, 1887) | Santos Dumont – MG – Brazil (21°27'S; 43°32'W) | 2 – 15 | 38 | 2n = 10m + 12sm + 14st + 2a |
| Acromyrmex (Acromyrmex) niger (Smith, F. 1858) | Viçosa – MG – Brazil (20°45'S; 42°51'W) | 3 – 21 | 38 | 2n = 12m + 14sm + 10st + 2a |
| Acromyrmex (Acromyrmex) rugosus (Smith, F. 1858) | Florestal – MG – Brazil (19°52'S; 44°24'W) | 1 – 6 | 38 | 2n = 16m + 12sm + 8st + 2a |
| Acromyrmex (Acromyrmex) rugosus (Smith, F. 1858) | Paraopeba – MG – Brazil (19° 17'S; 44° 29'W) | 5 – 22 | 38 | 2n = 16m + 12sm + 8st + 2a |
| Acromyrmex (Acromyrmex) echinatior (Forel, 1899) | Barro Colorado – Panama (9°9'N; 79°50'W) | 2 – 10 | 38 | 2n = 8m + 6sm + 14st + 10a |