| Recyear | | Physical quantity | The year of sample were collected |
| Recmonth | | Physical quantity | The month of sample were collected |
| Recday | | Physical quantity | The day of sample were collected |
| Watershed | | Nominal | Watershed |
| Repsite | | Nominal | Replication site for a treatment |
| Spcode | | Physical quantity | Species code |
| Genus | | Nominal | Abbreviated genus name |
| Species | | Nominal | Abbreviated species name |
| First | | Physical quantity | # of individuals 1st instar |
| Secthird | | Physical quantity | # of individuals 2nd & 3rd instars |
| Forth | | Physical quantity | # of individuals 4th instar |
| Fifth | | Physical quantity | # of individuals 5th instar |
| Female | | Physical quantity | # of individuals of adult females |
| Male | | Physical quantity | # of individuals of adult males |
| Total | | Physical quantity | Total # of individuals/all samples |