Diabrotica costaricensis Derunkov, et al.

Species name

Diabrotica costaricensis Derunkov, Prado, Tishechkin, Konstantinov 2015: 10

Type locality

San Carlos, Costa Rica

Type depository

USNM, holotype, male

Diagnosis

Body length 8.3-8.4 mm. Body width 4.4-4.5 mm. Head basic color black. Antennae serrateserrate:
in reference to antennae, saw-like, often with a sharp ridge on the outer margin
(sometimes only slightly so), bi- or tricolored, antennomereantennomere:
"segment" of antenna, more or less clearly separated
1 pale olivine, antennomeres 2-3 yellow, upper sides darkened, antennomeres 4-8 gradually infuscated, antennomeres 9-10 light cadmium, antennomereantennomere:
"segment" of antenna, more or less clearly separated
11 cinnamon brown. Maxillary palpi yellow, labrumlabrum:
the "upper lip" of beetles, a movable sclerite joined under clypeus
black. Pronotumpronotum:
the notum of the prothorax with highly sclerotized pronotal disc
paris green or green, subquadrate, weakly bifoveate with wide shallow foveae, not shagreened. Scutellumscutellum:
small, usually triangular shield between the bases of elytra
black or amber brown. Elytra bicolored, with yellow disk and green margins, with three transverse black bandsbands:
(here) transverse maculae on the beetle elytra
, two basalbasal:
of or pertaining to the base, as in the first, or basal segment of an appendage; opposite of apical
bandsbands:
(here) transverse maculae on the beetle elytra
conjunct with each other forming round macula on each elytronelytron:
<em>(pl. elytra)</em> the fore highly sclerotized wing of beetle
. Elytral epipleura completely green. Elytra surface not sulcatesulcate:
bearing the carinae or ridges on the elytron
, sometimes with one or two short plicae in posthumeral area. Sutural anglesutural angle:
the posterior angle or apex of the elytron near the suture
of elytra obtuse-angled, punctation scattered, fine. Abdomen yellow. Tarsi yellow or yellow ocher. Male metatibia spurmetatibia spur:
a short process at the apex of metatibia
elongate. Tibiae bicolored, yellow, outer edge with piceous or testaceous line, or extensively darkened. Femora paris green. 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

Nicaragua, Costa Rica

Host plants

Unknown

Potential problems with identification

Diabrotica costaricensis Derunkov, Prado, Tishechkin, Konstantinov is very similar to D. viridicollis Jacoby, and D. dmitryogloblini. They can be separated by the following features: male metatibia spurmetatibia spur:
a short process at the apex of metatibia
elongate in D. costaricensis, but short in all other species; head is black in D. costaricensis, green with brownish olive vertexvertex:
the upper part of the head capsule behind the eyes
in D. dmitryogloblini and yellow with chestnut vertexvertex:
the upper part of the head capsule behind the eyes
in D. viridicollis; pronotumpronotum:
the notum of the prothorax with highly sclerotized pronotal disc
is foveate in D. costaricensis, but nonfoveate in D. viridicollis; two basalbasal:
of or pertaining to the base, as in the first, or basal segment of an appendage; opposite of apical
bandsbands:
(here) transverse maculae on the beetle elytra
on elytra conjunct with each other for forming round macula on each elytronelytron:
<em>(pl. elytra)</em> the fore highly sclerotized wing of beetle
, while black bandsbands:
(here) transverse maculae on the beetle elytra
are reduced to a substantial degree in D. viridicollis and D. dmitryogloblini; body shape is more convex and wider in D. costaricensis than in all other species; D. costaricensis is larger than all other species.