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Species name

Diabrotica virescens hausteca Krysan & Smith 1987: 454

 

Type locality

Vera Cruz, Panuco, Mexico

 

Type depository

MCZ, holotype, male, verified

 

Diagnosis

Body length 3.6-5.7 mm. Body width 1.8-2.7 mm. Head basic color green. Antennae filiform, bi- or tricolored, antennomere 1 pale olivine, antennomeres 2-3 olive ocher, antennomeres 4-11 cinnamon brown. Maxillary palpi yellow or yellow ocher, labrum black or chestnut. Pronotum paris green or green, subquadrate, deeply bifoveate, shagreened with minute tubercles. Scutellum black or amber brown. Elytra green, vittate, with one sutural and one humeral chestnut vittae and sulphur yellow diffuse area adjacent to suture and lateral margin of elytron. Elytral epipleura completely green. Elytra surface with four distinct sinuate sulci, strongest behind the humeral callus and extending beyond the middle. Sutural angle of elytra round, punctation dense, coarse. Abdomen pale olivine or green. Tarsi and tibiae black or chestnut, femora uniform pale olivine. Aedeagus symmetric, with three internal sac sclerites.

 

Known distribution

Mexico, Panama.

 

Host plants

Cucurbita moschata (Duchn. ex Lam.) Duchn. ex Poir, Cucumis melo L. (Krysan & Smith, 1987).

 

Potential problems with identification

Diabrotica virescens hausteca Krysan & Smith can be separated from another subspecies by the following features: maxillary palpi and labrum yellow in D. virescens virescens, but labrum black or chestnut in D. virescens hausteca; head tinged testaceous in D. virescens virescens, but head is green with only central area tinged cinnamon-brown in D. virescens hausteca. D. virescens hausteca is similar to D. virgifera. They can be separated by the following features: the yellow coloration adjacent to the sutural vitta is clearly contiguous with that vitta in D. virescens hausteca, but clearly separated from the chestnut sutural vitta in D. virgifera; sclerite 4B absent in the internal sac in D. virescens hausteca.