1) Dipterous 
temples which have a double range of columns in the peristyle, as in the temple of Diana at Ephesus.[18]
• (a.) Having two wings only; belonging to the order Diptera. • (a.) Having a double row of columns on each on the flanks, as well as in front and rear; -- said of a temple.
Dip'ter·al adjective 1. (Zoology) Having two wings only; belonging to the order Diptera. 2. (Anc. Arch.) Having a double row of columns on each on the flanks, as well as in front and rear; -- said of a temple. 
dipterous.