| Antigen | Relative amount | Relative importance | Molecular weight | Corresponding protein in Solenopsis richteri |
| Sol i 1 | 2 to 4% | Minor allergen | 37 kd | Sol r 1 |
| Sol i 2 | 50 to 65% | Major allergen | 13 kd | Sol r 2 |
| Sol i 3 | 15 to 25% | Minor allergen | 24 kd | Sol r 3 |
| Sol i 4 | 8 to 10% | Minor allergen | 13 kd | None |
