Table 2.
Wild population color ratios as observed during field surveys
| Field surveys | Surveyed larvae, n | Observed phenotype % yellow | Observed phenotype % Green | ||
|---|---|---|---|---|---|
| Site, subsite number | Observed % “yellow/green” | ||||
| Borrego Springs, CA, 03/2017 | 1 | 28 | 75 | 25 | – |
| 2 | 28 | 50 | 50 | – | |
| 3 | 9 | 33 | 67 | – | |
| 4 | 83 | 73 | 27 | – | |
| 5 | 25 | 44 | 56 | – | |
| Total | 173 | 64 | 36 | – | |
| Tucson, AZ, 08/2014 | 1 | 110 | 21 | 79 | – |
| Oro Valley, AZ, 07/2014 | 1 | 143 | 97 | 3 | – |
| Green Valley, AZ, 09/2013 | 1 | 3 | 33 | 67 | – |
| 2 | 16 | 19 | 81 | – | |
| 3 | 19 | 16 | 84 | – | |
| 4 | 44 | 29 | 71 | – | |
| Total | 82 | 24 | 76 | – | |
| Sierra Vista, AZ, 08/2013 | 1 | 80 | 12.5 | 87.5 | – |
| Portal, AZ, 08/2013 | 1 | 51 | 45 | 8 | 47 |
| 2 | 241 | 4 | 57 | 39 | |
| 3 | 105 | 15 | 48 | 37 | |
| 4 | 204 | 47 | 33 | 20 | |
| 5 | 9 | 100 | 0 | 0 | |
| Total | 610 | 25 | 42.5 | 32.5 |
Conducted at six sites, with up to five subsites per site in San Bernardino County, CA; Pima and Cochise Counties, AZ. Early surveys were conducted with three color categories: ‘yellow’, ‘green’, and ‘yellow/green’ and later changed to either ‘yellow’ or ‘green’. At each site/subsite, the total number of H. lineata larvae surveyed and the percent of larvae of each color morph observed was recorded.