Species name

Diabrotica sexmaculata Baly 1879: 81


Type locality



Type depository

BMNH, lectotype, male, verified



Body length 6.5-8.0 mm. Body width 3.3-4.0 mm. Head basic color green. Antennae filiform, bi- or tricolored, antennomere 1 deep malachite green, antennomeres 2-3 olive ocher, antennomeres 4-10 orange rufous, antennomere 11 dark apically. Maxillary palpi yellow or mars yellow, labrum mars yellow. Pronotum green or deep malachite green, subquadrate, bifoveate, with small round foveae, shagreened with microsculpture narrow, long meshes. Scutellum black or olive. Elytra green, maculate, with three large diffuse round sulphur yellow maculae on each elytron. Elytral epipleura completely green, sutural angle of elytra dentiform, punctation dense, fine. Abdomen pale olivine or green. Tarsi and tibiae yellow or mars yellow, femora deep malachite green. Aedeagus symmetric, with four internal sac sclerites.


Known distribution

Mexico, Guatemala


Host plants




There is a handwritten, presumably Baly's label "Diabrotica sexpustulata" on the type of D. sexmaculata Baly 1879: 81 (Smith and Lawrence 1967: 122).


Potential problems with identification

Diabrotica sexmaculata Baly is similar to D. selecta Jacoby. They can be separated by the following features: head is green in D. sexmaculata, but orange or rufous in D. selecta; scutellum is black or olive in D. sexmaculata, but yellow, orange rufous or amber yellow in D. selecta. D. sexmaculata is more robust and on average longer and wider than D. selecta.