Pagiocerus

Type species

Pagiocerus rimosus Eichhoff

Adapted from Wood 1982, p. 245-246

Diagnosis

Pagiocerus is distinguished from Cnesinus LeConte by its procurvedprocurved:
pertaining to structure (antennae, setae) which is basally perpendicular to the body and whose apical part is curved anteriorly
clubclub:
the apical segment of the insect antennae that is enlarged or thickened such that it is anatomically differentiated from the preceding segments
sutures.

Description

Species in this genus range in length from 1.9 to 2.6 mm, and they are approximately 1.9 times as long as wide. The color of the species that occurs in the continental United States is dark brown. The usually wider than long pronotumpronotum:
the upper or dorsal surface of the first thoracic segment
is longitudinally strigosestrigose:
marked with fine, close-set grooves, ridges, or streaks
and unarmedunarmed:
having no granules, teeth, tubercles, spines, or other protective structures
. The scutellumscutellum:
a shield-like bony plate or scale, as on the thorax of some insects
is small. The declivitydeclivity:
the apical portion of the beetle elytra that slopes downward
is convex and unarmedunarmed:
having no granules, teeth, tubercles, spines, or other protective structures
. The short vestiturevestiture:
a surface covering of scales or setae on the body, wing, or other appendage
is usually restricted to the declivitydeclivity:
the apical portion of the beetle elytra that slopes downward
, where it consists of interstrial rows of short, semi-erect hair-like setaehair-like setae:
setae that are thin and similar to a hair
. The fronsfrons:
the upper anterior portion of the head capsule
is distinctly excavatedexcavated:
a pit, groove, or depression of the integument; a concave area on a surface
to flat. The anterior margin of the compound eye is sinuatesinuate:
descriptive of a narrow and winding thin structure or margin of a feature
. The scapescape:
the first and basal segment of the insect's antennae
is usually as long as the 7-segmented funiclefunicle:
the antennal segments located between the scape and the club in some Coleoptera
. The ovateovate:
egg shaped, with the narrow end apically
clubclub:
the apical segment of the insect antennae that is enlarged or thickened such that it is anatomically differentiated from the preceding segments
is marked by two procurvedprocurved:
pertaining to structure (antennae, setae) which is basally perpendicular to the body and whose apical part is curved anteriorly
sutures. The procoxaeprocoxae:
extra segment occasionally preceding coxa (hip joint) of the first or anterior pair of legs of arthropods
are widely separated.

Distribution

Southeastern United States, Texas to Argentina, and the West Indies

World fauna

Number of species: 5, Natives species: 1, Introduced species: 0

Hosts

Persea, Zea mays

            Pagiocerus frontalis , dorsal view

Pagiocerus frontalis, dorsal view

            Pagiocerus frontalis , lateral view

Pagiocerus frontalis, lateral view

            Pagiocerus frontalis , posterior view (declivity)

Pagiocerus frontalis, posterior view (declivity)

            Pagiocerus frontalis , anterior view

Pagiocerus frontalis, anterior view