Diabrotica brevilineata Jacoby

Species name

Diabrotica brevilineata Jacoby 1887: 521

Type locality

Panama, Bugaba

Type depository

BMNH, lectotype, male, verified

Diagnosis

Body length 6.0-6.9 mm. Body width 2.9-3.4 mm. Head basic color yellow. Antennae filiformfiliform:
slender antennae with antennomeres of similar shape
, bi- or tricolored, antennomeres 1-3 uniformly yellow, antennomeres 4-8 cinnamon brown, antennomeres 9-11 light cadmium. Maxillary palpi yellow or amber yellow, labrumlabrum:
the "upper lip" of beetles, a movable sclerite joined under clypeus
amber yellow. Pronotumpronotum:
the notum of the prothorax with highly sclerotized pronotal disc
yellow or buff yellow, subquadrate, weakly bifoveate with wide shallow foveae, shagreened basally with microsculptural narrow long meshes. Elytra yellow or rufous, maculatemaculate:
(here) marked by maculae or patches of a different shape and size, usually clearly separated from each other
, with two short black lines or small spots in the apicalapical:
of or pertaining to the apex; opposite of basal
part, usually associated with humeral and sutural black vittae. Elytral epipleura completely yellow. Sutural anglesutural angle:
the posterior angle or apex of the elytron near the suture
of elytra round, punctation dense, fine. Abdomen yellow. Legs yellow. Aedeagusaedeagus:
the main sclerotized part of the male genitalia; "aedeagus" is used here instead of "median lobe of aedeagus"
symmetric, with five internal sac scleritessclerites:
(here) the sclerotized hooks, spines or plates in the internal sac
.

Known distribution

Panama

Host plants

Unknown

Potential problems with identification

Diabrotica brevilineata Jacoby is very similar to D. apicicornis Jacoby and D. septemliturata Erichson. They can be separated by the following features: the femora and maxillar palpi of D. apicicornis are black, but yellow in D. brevilineata; the labrumlabrum:
the "upper lip" of beetles, a movable sclerite joined under clypeus
of D. brevilineata is yellow, but black in D. septemliturata. However, the most reliable feature that allows distinguishing D. brevilineata is the shape of the internal sac scleritessclerites:
(here) the sclerotized hooks, spines or plates in the internal sac
.