Key to the species of Renclasea

1. Prosternal keel with carinal striae present (Fig. 6 A) ................................................................................ R. falli n. sp.

1'. Prosternal keel without carinal striae............................................................................................................................ 2

2. Substantial areas of dorsal body surface with alutaceous microsculpture, at least on elytral intervals and apical areas ..................................................................................................................................................................................... 3

2'. Dorsal body surface without alutaceous microsculpture .............................................................................................. 5

3. Dorsal striae inconspicuous, barely traceable; surface of pygidium smooth, shiny or finely microsculptured ........... 4

3'. Dorsal striae 1–4 distinct, almost complete, thin, impunctate and slightly costate, especially anteriorly; surface of pygidium rugose; disc of mesoventrite (in females) medially with circular flat microsculptured callus (Fig. 6 B) .......

.............................................................................................................................................................. R. helavai n. sp. 4. Surface of frons, vertex, pronotum, most of elytra and propygidium with alutaceous microsculpture; northern Mexico (Hidalgo) .................................................................................................................................... R. mexicana n. sp.

4'. Dorsal alutaceous microsculpture present as longitudinal bands at interstrial intervals on elytra, these being somewhat expanded and merged at posterior fourth (Fig. 1 B); southeastern United States (Florida and Georgia) ............... .............................................................................................................................................................. R. skelleyi n. sp.

5. Elytra with distinct traces of dorsal striae 1–3 and almost complete sutural striae; mesoventrite and anterior portion of metaventrite without medial longitudinal keel ........................................................................ R. occidentalis n. sp.

5' Elytra without any traces of dorsal and sutural striae; mesoventrite and anterior portion of metaventrite (in males) with sharp medial longitudinal keel (Fig. 2 B) ...................................................................................... R. cazieri n. sp.