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Species name

Diabrotica matina Bechyné 1958: 548

 

Type locality

Costa Rica: Matina

 

Type depository

NMB, holotype, male, verified

 

Diagnosis

Body length 6.5-7.6 mm. Body width 3.1-3.9 mm. Head basic color black. Antennae filiform, bi- or tricolored, antennomeres 1-3 yellow, upper sides darkened, antennomeres 4-8 and 11 brussels brown, antennomeres 9-10 light cadmium. Maxillary palpi and labrum black or piceous. Pronotum yellow or mustard yellow, transverse, nonfoveate, shagreened with minute wrinkles. Scutellum piceous or black. Elytra yellow or rufous, with three black bands, connected into four ring-shape maculae on each elytron, three of them on the disc and one on the side before the middle. Elytral epipleura yellow, darkened basally from 1/3 to 1/2. Sutural angle of elytra round, punctation dense, coarse. Abdomen yellow. Tarsi and tibiae black or piceous, femora bicolored, yellow, idarkened with black or brown from 1/2 to 2/3. Aedeagus symmetric, with four internal sac sclerites.

 

Known distribution

Costa Rica

 

Host plants

Unknown

 

Potential problems with identification

Diabrotica matina Bechyné is very similar to D. morosa Baly and D. f2n. They can be separated by the following features: procoxa and mesocoxa are black or brussels brown in D. matina, but yellow in D. f2n; mesosternum and mesepisternum yellow in D. matina, but black in D. morosa; mesepimeron black or brussels brown in D. matina, but yellow in D. f2n. Elytral epipleura yellow, darkened basally in D. matina, but usually completely black with a pale narrow interior edge or (rarer) basally darkened in D. f2n and completely black or tinged with piceous in D. morosa. Femora bicolored, yellow, partially darkened with black or brown in D. matina; in D. f2n profemora bicolored, partially darkened with black or brown; meso- and metafemora are bicolored, only apices are oartially darkened with black or brown; femora are black in D. morosa.