Key to species of Choriphyllum Serville (adapted from Perez-Gelabert and Otte (1999) and Gundlach (1891))

1. Posterior part of median carina slightly concave................................................................... Choriphyllum plagiatum Walker, 1871 (Fig. 1A)

— Posterior part of median carina truncated........................................ 2

2. Median carina (general shape of pronotum) with crest uniformly elevated throughout its length, without undulations................................................................... Choriphyllum bahamensis Perez-Gelabert and Otte, 1999 (Fig. 3 A–5A)

— Median carina (general shape of pronotum) with crest not uniformly elevated throughout its length, with undulations..................................................... 3

3. Undulations evident only on the median to posterior part of median carina............................................... Choriphyllum saussurei Bolívar, 1887 (Fig. 2)

— Undulations evident perpendicular to the head..................................... Choriphyllum sagrai Serville, 1838 (based on Serville (1838): plate 8, fig. 5 – drawing).