| simulium callidum | | Costa Rica: Guanacaste, unnamed streamstream coming from grassland, at road crossing | | 820958765 |
| simulium callidum | | Costa Rica: Guanacaste, Rio Cucaracho | | 820959087 |
| simulium callidum | | Costa Rica: Guanacaste, unnamed stream, at road crossing | | 820958997 |
| simulium callidum | | Costa Rica: Guanacaste, Rio Los Ahogados | | 820958865 |
| simulium callidum | | Costa Rica: Guanacaste, unnamed stream, at road crossing | | 820958355 |
| simulium callidum | | Costa Rica: Guanacaste, unnamed streamstream coming from grassland, at road crossing | | 820958285 |