Diabrotica underwoodi Bowditch 1911: 95
San Jose, Costa Rica
MCZ, holotype, male, verified
Body length 6.7-7.2 mm. Body width 3.1-3.5 mm. Head basic color black. Antennae filiformfiliform:
slender antennae with antennomeres of similar shape
, bi- or tricolored, antennomeres 1-3 yellow, antennomeres 4-8 cinnamon brown, antennomeres 9-11 light cadmium. Maxillary palpi black or chestnut, 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 mustard yellow, quadrate, weakly bifoveate, with wide shallow foveae, not shagreened. Scutellumscutellum:
small, usually triangular shield between the bases of elytra
black or amber brown. Elytra yellow or rufous, vittatevittate:
(here) marked by longitudinally extended maculae different from the basic color of elytron
with two black laterallateral:
located near the sides of the body
vittae and two black vittae on elytral disk reaching almost elytral apexapex:
<em>(pl. apices)</em> the far distal end of a structure; opposite of base
; there is usually a short sutural vitta. Elytral epipleura completely yellow, sutural anglesutural angle:
the posterior angle or apex of the elytron near the suture
of elytra round, punctation dense, fine. Abdomen yellow. Legs yellow. 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
.
Costa Rica
Unknown
Diabrotica underwoodi Bowditch is similar to D. curvilineata Jacoby, D. c1n and D. pl1n. They can be separated by the following features: head is black in D. underwoodi, but yellow in D. curvilineata and D. c1n; scutellumscutellum:
small, usually triangular shield between the bases of elytra
is black or amber brown in D. underwoodi, but yellow in all other species; tibiae are yellow in D. underwoodi, but black in D. curvilineata and D. c1n; antennae are filiformfiliform:
slender antennae with antennomeres of similar shape
in D. underwoodi, serrateserrate:
in reference to antennae, saw-like, often with a sharp ridge on the outer margin
or moniliformmoniliform:
(here) antennae with bead-like, slightly elongate and swollen antennomeres
in D. pl1n.