Diabrotica ochreata (Fabricius)

Species name

Diabrotica ochreata Fabricius 1792: 4 as Crioceris

Type locality

Insula Guadelupe

Type depository

ZMUC, lectotype, male, verified

Synonyms

pectoralis Dejean, 1837: 404 nomen nudum

Diagnosis

Body length 6.1-6.8 mm. Body width 3.1-3.5 mm. Head basic color yellow. Antennae filiformfiliform:
slender antennae with antennomeres of similar shape
, bi- or tricolored, antennomeres 1-10 sulphur yellow, antennomereantennomere:
"segment" of antenna, more or less clearly separated
11 brussels brown. Maxillary palpi yellow or yellow ocher, labrumlabrum:
the "upper lip" of beetles, a movable sclerite joined under clypeus
black or chestnut. Pronotumpronotum:
the notum of the prothorax with highly sclerotized pronotal disc
yellow or yellow ocher, subquadrate, nonfoveate, not shagreened. Scutellumscutellum:
small, usually triangular shield between the bases of elytra
piceous or black. Elytra uniform yellow ocher. Elytral epipleura completely yellow, elytral surface not sulcatesulcate:
bearing the carinae or ridges on the elytron
, transversely depressed in the middle of elytronelytron:
<em>(pl. elytra)</em> the fore highly sclerotized wing of beetle
. Sutural anglesutural angle:
the posterior angle or apex of the elytron near the suture
of elytra round, punctation dense, fine. Abdomen yellow or yellow ocher. Tarsi yellow or yellow ocher. Protibia bicolored, yellow, from 1/2 to 2/3 darkened with black or brown. Meso- and metatibia bicolored, yellow, apexapex:
<em>(pl. apices)</em> the far distal end of a structure; opposite of base
(approximately 1/3) is darkened with black or brown. Femora yellow or sulphur yellow. 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

West Indies

Host plants

Unknown

Potential problems with identification

Diabrotica ochreata (Fabricius) is very similar to D. olivieri Jacoby and D. graminea Baly. They can be separated by the following features: the head is yellow in D. ochreata, but black in D. olivieri and D. graminea, scutellumscutellum:
small, usually triangular shield between the bases of elytra
is piceous or black D. ochreata, but yellow in D. olivieri; elytra are uniformly yellow ocher in D. ochreata, but with black macula on the apexapex:
<em>(pl. apices)</em> the far distal end of a structure; opposite of base
in D. olivieri.