Albert Lea Seed House Oat Production Guide | Page 36

Return to preceding couplet (8).

pronotum
narrower
than
abdomen

club

no
club

pronotum
same width
as abdomen

Figure 9.1.

Figure 9.2.

9

9’

Antennae long with segments uniform
in shape, pronotum narrower than
abdomen, abdomen and pronotum
slightly rounded (not parallel sided),
may be spider-like in appearance.
Spider Beetles - Ptininae
Return to preceding couplet (9’).

Insect with antennae variable in length
(usually short) but end in more or less
distinct club, pronotum and abdomen
same width.
Go to couplet 10

teeth

Figure 10.1.

Figure 10.2.

10

10’

36

Abdomen and pronotum parallel
sided, not round in shape;
cylindrical in cross section; shiny
and uniform in colour; pronotum
with rasp-like teeth.
Lesser Grain Borer – Rhyzopertha
dominica

Round or oval in overall shape,
covered with setae (hair) or scales and
appearing hairy or fuzzy; colour
variable and may be patterned; front
edges of pronotum strongly curved.
Hide Beetles or Larder Beetles Dermestidae