Diabrotica rogersi Jacoby 1887: 509
Costa Rica, Rio Sucio
BMNH, lectotype, male, verified
Body length 7.5-8.2 mm. Body width 3.5-4.0 mm. Head basic color black. Antennae filiform, bi- or tricolored, antennomeres 1-3 yellow, upper sides darkened, antennomeres 4-8 brussels brown, antennomeres 9-10 sulphur yellow, antennomere 11 dark apically. Maxillary palpi and labrum black. Pronotum yellow, mustard yellow, red or rufous, subquadrate, weakly bifoveate, with wide shallow foveae, not shagreened. Scutellum black or amber brown. Elytra yellow or rufous, with two metallic black blue bands, one wide band in elytral base, another narrow band in apex. Bands may be connected, forming two irregularly round macula. Elytral epipleura completely yellow, sutural angle of elytra round, punctation dense, fine. Abdomen yellow. Tarsi and tibiae black or chestnut, femora yellow or sulphur yellow. Aedeagus symmetric, with five internal sac sclerites.
Costa Rica, Panama
Potential problems with identification
Diabrotica rogersi Jacoby is similar to D. pulchella (Jacquelin-du-Val), D. g1n and D. g2n. They can be separated by the leg color: black tarsi and tibiae in D. rogersi and completely yellow legs in D. pulchella, D. g1n and D. g2n.