Extracted from: Melissodes semiagilis perlusa Cockerell Am. Mag. Nat. Hist. 9(16). p. 231
Appears as Melissodes semiagilis perlusa in this excerpt.
Male.—Compared with typical M. semiagilis differs thus;-- Clypeus paler yellow; third antennal joint a little longer; hair of scutellum fulvous, contrasting with the paler or white hair of mesothorax; hind knee-plate black (red in type of semiagilis); hair on outer side of hind basitarsi much shorter; abdominal segments 1 to 3 without red before hyaline margins.