Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
550211
| TX | Maverick | Rio Grande River between river mile 460 and 485. | 1992 |
13080002
| San Ambrosia-Santa Isabel | unknown |
43267
| TX | Webb | Casa Blanca Reservoir | 1981 |
13080002
| San Ambrosia-Santa Isabel | established |
44268
| TX | Webb | San Isabel Creek at Farm Road 1472 crossing near Rio Grande River | 1990 |
13080002
| San Ambrosia-Santa Isabel | collected |