| canada | | megastigmus spermotrophus | species | 2 | 0 |
| canada | british columbia | megastigmus spermotrophus | species | 1 | 0 |
| france | | megastigmus spermotrophus | species | 6 | 0 |
| new zealand | | megastigmus spermotrophus | species | 2 | 0 |
| united states | | megastigmus spermotrophus | species | 1 | 0 |
| united states | | megastigmus spermotrophus nigrodorsatus | subspecies | 2 | 0 |