The variation in pattern among individuals of R. hastata
and R. subhastata
is much greater than the variation between the two species. In these 7 photos
; the first 2 are hastata
, and the last 5 are subhastata
. Could you tell which was which if the specimens weren't labelled? Since these two species have virtually identical geographic ranges, examination of genitalia is the only reliable way to separate the two.