Invasion

Invasion Description

1st Record: San Diego County/CA/San Dieguito River (Huang et al. 2003). 'We have not collected any specimens during our annual sampling since the initial collections we previously reported' (David Huang, 8/8/2018, personal communication)

Geographic Extent

San Diego County/CA/San Dieguito River (2000, Huang et al. 2003; 2004, Steele et al. 2007)