Key to species of Lingafelterellus

1) Sides of central area of elytra with a single row of coarse punctures (Fig. 5). Ecuador ................ L. barclayi sp. nov.

- Sides of central area of elytra with two rows of coarse punctures (Fig. 10)........................................ 2

2(1). Prothorax mostly yellowish brown; pronotum with dark macula; vertex with confluent punctures; femora distinctly bicolorous. Bolivia .............................................................. L. clarkei Santos-Silva & Galileo, 2017

- Prothorax from brown to dark brown; pronotum without dark central macula; vertex without confluent punctures; femora reddish brown, slightly lighter basally. Colombia .................................. L. birai Santos-Silva & Galileo, 2017