Diabrotica panamensis Jacoby 1887: 503
Panama, Volcan de Chiriqui
BMNH, lectotype, male, verified
Body length 6.5-7.5 mm. Body width 3.2-3.4 mm. Head basic color black. Antennae filiform, bi- or tricolored, antennomere 1 uniformly yellow, antennomeres 2-3 yellow, upper sides darkened, antennomeres 4-8 brussels brown, antennomeres 9-10 light cadmium, antennomere 11 dark apically. Maxillary palpi black or piceous, labrum black. Pronotum yellow or light cadmium, subquadrate, weakly bifoveate, with wide shallow foveae, shagreened with minute wrinkles. Scutellum piceous or black. Elytra black or piceous, maculate, with three sharp-edged yellow ocher maculae on each elytron, sometimes divided into two parts in sutural area. There is the additional small spot at the side of the anterior maculae; sometimes elytra uniformly yellow or testaceous, narrowly margined with black. Elytral epipleura completely black or tinged with piceous, sutural angle of elytra round or obtuse-angled, punctation scattered, fine. Abdomen yellow. Tarsi and tibiae black, femora yellow. Aedeagus symmetric, with five internal sac sclerites.
Potential problems with identification
Diabrotica panamensis Jacoby is similar to D. morosa Jacoby. They can be separated by the following features: legs are bicolored in D. panamensis, but completely black in D. morosa; body shape in D. panamensis is roundish and convex, while flattened and slender in D. morosa.