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Species name

Diabrotica costaricensis Derunkov, Prado, Tishechkin, Konstantinov 2015: 10

 

Type locality

San Carlos, Costa Rica

 

Type depository

USNM, holotype, male

 

Diagnosis

Body length 8.3-8.4 mm. Body width 4.4-4.5 mm. Head basic color black. Antennae serrate (sometimes only slightly so), bi- or tricolored, antennomere 1 pale olivine, antennomeres 2-3 yellow, upper sides darkened, antennomeres 4-8 gradually infuscated, antennomeres 9-10 light cadmium, antennomere 11 cinnamon brown. Maxillary palpi yellow, labrum black. Pronotum paris green or green, subquadrate, weakly bifoveate with wide shallow foveae, not shagreened. Scutellum black or amber brown. Elytra bicolored, with yellow disk and green margins, with three transverse black bands, two basal bands conjunct with each other forming round macula on each elytron. Elytral epipleura completely green. Elytra surface not sulcate, sometimes with one or two short plicae in posthumeral area. Sutural angle of elytra obtuse-angled, punctation scattered, fine. Abdomen yellow. Tarsi yellow or yellow ocher. Male metatibia spur elongate. 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

 

Host plants

Unknown

 

Potential problems with identification

Diabrotica costaricensis Derunkov, Prado, Tishechkin, Konstantinov is very similar to D. viridicollis Jacoby, and D. dmitryogloblini. They can be separated by the following features: male metatibia spur elongate in D. costaricensis, but short in all other species; head is black in D. costaricensis, green with brownish olive vertex in D. dmitryogloblini and yellow with chestnut vertex in D. viridicollis; pronotum is foveate in D. costaricensis, but nonfoveate in D. viridicollis; two basal bands on elytra conjunct with each other for forming round macula on each elytron, while black bands are reduced to a substantial degree in D. viridicollis and D. dmitryogloblini; body shape is more convex and wider in D. costaricensis than in all other species; D. costaricensis is larger than all other species.