Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
280
| AZ | Yuma | canal 4.0 km N San Luis | 1990 |
15030107
| Lower Colorado | established |
271
| AZ | Yuma | Colorado River 1.0 km N of Yuma | 1990 |
15030107
| Lower Colorado | established |
270
| AZ | Yuma | Colorado River 3.2 km WNW of Yuma | 1990 |
15030107
| Lower Colorado | established |
283
| AZ | Yuma | Colorado River at Morelos Dam | 1990 |
15030107
| Lower Colorado | established |
281
| AZ | Yuma | ditch 1.2 km N of Gadsden | 1990 |
15030108
| Yuma Desert | established |
282
| AZ | Yuma | ditch 1.5 km NW of Gadsden | 1990 |
15030108
| Yuma Desert | established |
284
| AZ | Yuma | ditch just W of 16th St. and Ave. C, 6.4 km W of Yuma | 1990 |
15030108
| Yuma Desert | established |
268
| AZ | Yuma | Hunter's Hole, Colorado River, 4.0 km NNW of San Luis | 1990 |
15030107
| Lower Colorado | established |
287
| CA | Imperial | Colorado River 2.3 km E of I-8 river crossing | 1990 |
15030107
| Lower Colorado | established |
269
| CA | Imperial | Colorado River near Pilot Knob, 8.4 km WNW of Yuma | 1990 |
15030107
| Lower Colorado | established |
286
| CA | Imperial | Colorado River, 3.3 km WNW of I-8 river crossing | 1990 |
15030107
| Lower Colorado | established |
927
| CA | Imperial | open canal in field 0.75 mi. southeast of San Pasqual School, north of Winterhaven | 1989 |
15030107
| Lower Colorado | collected |