Diabrotica hogei Jacoby

Species name

Diabrotica hogei Jacoby 1887: 525

Type locality

Jalapa, Mexico

Type depository

BMNH, lectotype, female, verified

Diagnosis

Body length 6.3-6.5 mm. Body width 3.0-3.2 mm. Head basic color black. Antennae filiformfiliform:
slender antennae with antennomeres of similar shape
, with thickened antennomeres 4-6, bi- or tricolored, antennomereantennomere:
"segment" of antenna, more or less clearly separated
1 and 9-10 sulphur yellow, antennomeres 2-3 yellow, upper sides darkened, antennomeres 4-8 brussels brown, antennomereantennomere:
"segment" of antenna, more or less clearly separated
11 dark apically. Maxillary palpi and labrumlabrum:
the "upper lip" of beetles, a movable sclerite joined under clypeus
black or piceous. Pronotumpronotum:
the notum of the prothorax with highly sclerotized pronotal disc
black, sides and a central band flavous, yellow, sulphur yellow or yellow ocher, subquadrate, weakly bifoveate, with wide shallow foveae, shagreened with minute wrinkles. Scutellumscutellum:
small, usually triangular shield between the bases of elytra
piceous or black. Elytra yellow, rufous or black, uniformly colored or testaceous, narrowly margined with black, or black, maculatemaculate:
(here) marked by maculae or patches of a different shape and size, usually clearly separated from each other
with three sharp-edged sulphur yellow maculae on each elytronelytron:
<em>(pl. elytra)</em> the fore highly sclerotized wing of beetle
, sometimes divided into two parts. Elytral epipleura completely black, narrow interior edge is pale. Sutural angle of elytra round or obtuse-angled, punctation scattered, fine. Abdomen yellow. Tarsi and tibiae black or chestnut. Femora uniformly 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
.

Known distribution

Mexico, Honduras

Host plants

Unknown

Remarks

The type of D. hogei in BMNH is a female. We studied the male in the MCZ collection bearing the label 'Playa Vicente, Mexico, Salle Coll.,' which is morphologically identical with the type. We treat it as the male of D. hogei. After study of additional material in the MCZ and USNM collections it was found that D. hogei is very variable species. We recognized at least four different color varietimorphs. The internal sac armament is the same in all of them.

Potential problems with identification

Diabrotica hogei Jacoby is very similar to D. h1n, D. panamensis Jacoby and D. olivieri Jacoby. They can be separated by the following features: the narrow interior edge on elytra epipleura is pale in D. hogei; but completely black in D. panamensis and completely yellow in D. olivieri; scutellumscutellum:
small, usually triangular shield between the bases of elytra
is black in D. hogei, but yellow in D. olivieri; the armament of the internal sac is quite different in all four species.