Figure 3. Landmarked images of Halictus forewings, including: (a) Halictus tripartitus from the mainland (UCSB-IZC00042220); (b) H. tripartitus from Santa Cruz Island (UCSB-IZC00040420); (c) H. ligatus (UCSB-IZC00039120; mainland); and (d) H. farinosus (UCSB-IZC00036955; Santa Cruz Island).