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Species name

Diabrotica viridicollis Jacoby 1887: 515

 

Type locality

Nicaragua, Chontales

 

Type depository

BMNH, lectotype, male, verified

 

Diagnosis

Body length 6.6-6.7 mm. Body width 3.8-3.9 mm. Head basic color yellow. Antennae serrate, with thickened antennomeres 4-8, bi- or tricolored, antennomeres 1-3 pale olivine, antennomeres 4-8 gradually infuscated, antennomeres 9-10 yellow ocher, antennomere 11 cinnamon brown. Maxillary palpi yellow or yellow ocher, labrum black or chestnut. Pronotum paris green or green, subquadrate, nonfoveate, not shagreened. Scutellum black or amber brown. Elytra bicolored, with yellow disk and green margins, with two transverse bands, frequently redused to a variable degree, associated with humeral and sutural black or chestnut short vittae or spots. Elytral epipleura completely green. Elytra surface not sulcate, humeral plicae absent. Sutural angle of elytra obtuse-angled, punctation dense, coarse. Abdomen pale olivine or green. Tarsi yellow, tibiae bicolored, yellow, outer edge with piceous or testaceous line, or extensively darkened. Femora paris green. Aedeagus symmetric, with four internal sac sclerites.

 

Known distribution

Nicaragua, Costa Rica, Ecuador

 

Host plants

Unknown

 

Potential problems with identification

Diabrotica viridicollis Jacoby is very similar to D. v1n, D. v2n and D. v3n. They can be separated by the following features: head is yellow with chestnut vertex in D. viridicollis, green with brownish olive vertex in D. v1n and black in D. v2n and D. v3n; pronotum is nonfoveate in D. viridicollis, but foveate in D. v1n, D. v2n and D. v3n; pronotum not shagreened in D. viridicollis, but shagreened in D. v3n; black bands are strongly marked in D. viridicollis, but reduced to a substantial degree in D. v1n; body shape is more convex and wider in D. viridicollis than in D. v1n and D. v3n; D. viridicollis is larger than D. v3n, but smaller than D. v2n.