Diabrotica fucata Fabricius 1787: 381 as Crioceris
Insula St. Bartholomaei Americes
ZMUC, lectotype, female, verified
caijanensis Thunberg 1787: 48 as Crioceris (type locality: E. Cajana; type depository: type not located, may be in Uppsala) species inquirenda
Body length 5.4-6.0 mm. Body width 2.9-3.2 mm. Head basic color orange or rufous. Antennae filiform, uniformly yellow. Maxillary palpi yellow or yellow ocher, labrum black or chestnut. Pronotum green or olive, subquadrate, nonfoveate, not shagreened. Elytra yellow or rufous, maculate, with 2 fuzzy-edged round olive maculae on each elytron. Elytral epipleura olive basally, yellow apically. Sutural angle of elytra round, punctation scattered, fine. Abdomen yellow. Tarsi black or amber brown, tibiae black or piceous, femora olive. Aedeagus symmetric, with four internal sac sclerites.
Lesser Antilles, Martinique, French Guiana
Potential problems with identification
Diabrotica fucata (Fabricius) is very similar to D. luciana Blake. They can be separated by the following features: there are two maculae on the elytra of D. fucata, but three maculae in D. luciana; internal sac sclerite 4c in D. fucata is longer than in D. luciana.