Paracoenia, Cresson, 1935

Mathis, Wayne N. & Sepúlveda, Luciane Marinoni and Tatiana A., 2025, Phylogeny and taxonomy of the shore-fly tribe Ephydrini with comments on related tribes in Ephydrinae (Diptera: Ephydridae), Zoologia (e 24044) 42, pp. 1-42 : 27-28

Key to subgenera of Paracoenia

1. Both supra-alar and katepisternal setae either lacking or much reduced; midfemur of male lacking row of closely set setae along posteroventral surface; apical 4 tarsomeres explanate and comparatively short; pulvilli lacking; basal flagellomere short, less than length of pedicel; general coloration black......................................... Subgenus Thiomyia Wirth [ P. (Thiomyia) quatei (Wirth) ]

1’. Both supra-alar and katepisternal setae well developed; midfemur of male with row of closely set setae along posteroventral surface; apical 4 tarsomeres normally developed, cylindrical; pulvilli evident; basal flagellomere short, less than length of pedicel; general coloration olivaceous gray to dark green or bluish green.............................. Subgenus Paracoenia Cresson [P. ( Paracoenia ) ampla Mathis , P. (P.) beckeri (Kuntze) , P. (P.) bisetosa (Coquillett) , P. (P.) calida Mathis , P. (P.) fumosa (Stenhammar) , P. (P.) fumosalis Cresson, P. (P.) turbida (Curran) , P. (P.) wirthi Mathis ]