Diabrotica octoplagiata Jacoby

Species name

Diabrotica octoplagiata Jacoby 1887: 511

Type locality

Guatemala

Type depository

BMNH, lectotype, male, verified

Diagnosis

Body length 4.9-6.1 mm. Body width 2.7-3.3 mm. Head basic color black. Antennae shape filiformfiliform:
slender antennae with antennomeres of similar shape
, bi- or tricolored, antennomeres 2-3 yellow, antennomeres 4-8 gradually infuscated, antennomeres 9-11 brussels brown. Maxillary palpi yellow or yellow ocher, labrumlabrum:
the "upper lip" of beetles, a movable sclerite joined under clypeus
black. Pronotumpronotum:
the notum of the prothorax with highly sclerotized pronotal disc
yellow or yellow ocher, subquadrate, bifoveate, with small round foveae, not shagreened. Scutellumscutellum:
small, usually triangular shield between the bases of elytra
piceous or black. Elytra yellow or rufous, maculatemaculate:
(here) marked by maculae or patches of a different shape and size, usually clearly separated from each other
with three sharp-edged chestnut maculae on each elytronelytron:
<em>(pl. elytra)</em> the fore highly sclerotized wing of beetle
, sometimes divided into two parts. Elytral epipleura completely yellow, sutural anglesutural angle:
the posterior angle or apex of the elytron near the suture
of elytra round, punctation dense, coarse. Abdomen yellow or yellow ocher. Tarsi and tibiae black or chestnut, femora yellow or yellow ocher. Aedeagusaedeagus:
the main sclerotized part of the male genitalia; "aedeagus" is used here instead of "median lobe of aedeagus"
symmetric, with four internal sac scleritessclerites:
(here) the sclerotized hooks, spines or plates in the internal sac
.

Known distribution

Guatemala, Nicaragua

Host plants

Unknown

Potential problems with identification

Diabrotica octoplagiata Jacoby is similar to D. variegata Jacoby. They can be separated by the following features: pronotumpronotum:
the notum of the prothorax with highly sclerotized pronotal disc
is yellow in D. octoplagiata, but chestnut in D. variegata; sutural anglesutural angle:
the posterior angle or apex of the elytron near the suture
of elytra round in D. octoplagiata, but dentiform in D. variegata.