Diabrotica spangleri Derunkov, et al.

Species name

Diabrotica spangleri Derunkov, Prado, Tishechkin, Konstantinov 2015: 49

Type locality

Turrialba, Costa Rica

Type depository

USNM, holotype, male

Diagnosis

Body length 6.7-7.5 mm. Body width 3.2-4.2 mm. Head basic color black. Antennae filiformfiliform:
slender antennae with antennomeres of similar shape
, inner margin of antennomeres 4-11 with thin longitudinal costa, bi- or tricolored. Antennomeres 1-3 uniformly yellow, antennomeres 4-8 gradually infuscated, antennomeres 9-10 uniformly light cadmium, antennomereantennomere:
"segment" of antenna, more or less clearly separated
11 dark apically. Maxillary palpi chestnut, penultimate joint slightly incrassate, labrumlabrum:
the "upper lip" of beetles, a movable sclerite joined under clypeus
black. Pronotumpronotum:
the notum of the prothorax with highly sclerotized pronotal disc
ochraceous-orange, subquadrate, nonfoveate, not shagreened. Scutellumscutellum:
small, usually triangular shield between the bases of elytra
ochraceous orange. Elytra yellow or rufous, with three transverse metallic black blue bandsbands:
(here) transverse maculae on the beetle elytra
. Elytral epipleura completely yellow. Elytra not sulcatesulcate:
bearing the carinae or ridges on the elytron
, sutural anglesutural angle:
the posterior angle or apex of the elytron near the suture
of elytra dentiform, punctation scattered, coarse. Abdomen yellow. Tarsi yellow ocher. Male protibiaeprotibiae:
tibiae of fore legs
thickened. Tibiae bicolored, yellow, outer edge with piceous or testaceous line, or extensively darkened. Femora 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

Costa Rica

Host plants

Unknown

Potential problems with identification

Diabrotica spangleri Derunkov, Prado, Tishechkin, Konstantinov is very similar to D. pulchra (Sahlberg), D. salvadorensis, and D. perkinsi. They can be separated by the following features: there are five internal sac scleritessclerites:
(here) the sclerotized hooks, spines or plates in the internal sac
in D. spangleri, but four scleritessclerites:
(here) the sclerotized hooks, spines or plates in the internal sac
in D. salvadorensis; the hook at the base of sclerite 5A is thick and strong, folded on another side with associated flat plate in D. spangleri, but hook and plate in sclerite 5A lie in the same plane in D. pulchra; sclerite 5A is a pointed hook widened basally and bearing a short pointed hook on the base in D. perkinsi; legs are yellow with bicolored tibiae in D. spangleri, but femora are bicolored in D. perkinsi, and legs are black in D. salvadorensis; there are three bandsbands:
(here) transverse maculae on the beetle elytra
on elytra in D. spangleri, but four bandsbands:
(here) transverse maculae on the beetle elytra
in all other species.