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Species name

Diabrotica tortuosa Jacoby 1887: 530

 

Type locality

Mexico, Las Peras

 

Type depository

BMNH, lectotype, female, verified

 

Diagnosis

Body length 5.8-6.1 mm. Body width 2.9-3.0 mm. Head basic color orange or rufous. Antennae filiform, bi- or tricolored, antennomere 1 pale olivine, antennomeres 2-11 cinnamon brown. Maxillary palpi yellow, labrum yellow ocher. Pronotum paris green or green, subquadrate, deeply bifoveate, not shagreened. Scutellum yellow or ochraceous-orange. Elytra green, with three diffuse yellow bands and apical yellow spot. Area around scutellum and humeri are tinged with amber. Elytral epipleura completely green. Elytral surface not sulcate, sometimes with 2-3 short plicae in posthumeral area, sutural angle of elytra round, punctation dense, fine. Abdomen pale olivine or green. Tarsi and tibiae yellow or ochraceous-orange, femora uniform paris green.

 

Known distribution

Mexico

 

Host plants

Unknown

 

Potential problems with identification

Diabrotica tortuosa Jacoby is similar to D. viridula (Fabricius) and D. scutellata Jacoby. They can be separated by the following features: elytra surface in D. tortuosa is almost not sulcate, but with well-defined sulci in D. viridula and D. scutellata; there are three bands and one macula on elytra in D. tortuosa, but only two macula present on elytra in D. viridula and D. scutellata; the head is orange or rufous in D. tortuosa, but green in D. viridula.