Diabrotica olivieri Jacoby

Species name

Diabrotica olivieri Jacoby 1887: 526

Type locality

Cordova, Mexico

Type depository

BMNH, lectotype, female, verified

Diagnosis

Body length 5.7-6.1 mm. Body width 2.9-3.0 mm. Head basic color black. Antennae filiformfiliform:
slender antennae with antennomeres of similar shape
, bi- or tricolored, antennomeres 1-3 and 9-10 sulphur yellow, antennomeres 4-8 cinnamon brown, antennomereantennomere:
"segment" of antenna, more or less clearly separated
11 dark apically. Pronotumpronotum:
the notum of the prothorax with highly sclerotized pronotal disc
yellow or mustard yellow, subquadrate, weakly bifoveate, with wide shallow foveae, not shagreened. Scutellumscutellum:
small, usually triangular shield between the bases of elytra
yellow. Elytra yellow or rufous, maculatemaculate:
(here) marked by maculae or patches of a different shape and size, usually clearly separated from each other
, with one black macula on the apexapex:
<em>(pl. apices)</em> the far distal end of a structure; opposite of base
of each elytronelytron:
<em>(pl. elytra)</em> the fore highly sclerotized wing of beetle
. Elytral epipleura completely yellow, sutural anglesutural angle:
the posterior angle or apex of the elytron near the suture
of elytra obtuse-angled, punctation dense, fine. Abdomen yellow or pygidium (at least the apexapex:
<em>(pl. apices)</em> the far distal end of a structure; opposite of base
) black. Tarsi black or chestnut, tibiatibia:
<em>(pl. tibiae)</em> the forth part of the beetle leg articulated with femur on the one side and with tarsus on the other side
black or piceous. 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 five internal sac scleritessclerites:
(here) the sclerotized hooks, spines or plates in the internal sac
.

Known distribution

Mexico, Belize, Nicaragua, Costa Rica

Host plants

Unknown

Potential problems with identification

Diabrotica olivieri Jacoby is very similar to D. apicalis Baly and D. obscura Jacoby. They can be separated by the following features: elytra with apicalapical:
of or pertaining to the apex; opposite of basal
black macula on each elytronelytron:
<em>(pl. elytra)</em> the fore highly sclerotized wing of beetle
in D. olivieri, but completely yellow in D. obscura; D. apicalis is larger than D. olivieri; elytrla sides are almost parallel in D. apicalis, while the body shape in D. olivieri is roundish; elytra punctuation is stronger in D. olivieri than in D. apicalis, so elytra in D. olivieri have dull luster, whereas they are shining in D. apicalis.