#3
This keys out to D. venustus as you suggest. The pale antennae, black and yellow side margins of the tergites and the black stripe on the hind margin of sternite 2 all point to D. venustus.
Interestingly, there may be a species compelex hiding behind D. venustus and it's close resembling 'sister' species of D. hilaris.
Greets,
Ectemnius
