Placonotus_afr Bestimmungstabelle

Genus Placonotus - African species

Coleoptera - Cucujidae - Laemophloeidae - Placonotus

By L.P. Lefkovitch (rearranged by Arved Lompe)
If you find any errors or omissions please mail me at mailbox@lompe.de

Lefkovitch, L.P. (1962): A revision of African Laemophloeinae (Coleoptera:Cucujidae) - Bulletin of the British Museum (Natural History) Entomology, 12(4):165-245 Private Datei: F:\taxa\coleo\scans\Lefkovitch1962 Laemophloeinae Afrika.pdf

Anterior angles of pronotum acute [fig.1].

...2

fig.1

Anterior angles of pronotum rounded [fig.2].

...12

fig.2

Black or reddish black in colour, without a lighter mark on each elytron; epistome truncate anteriorly.

...tastus Lefkovitch, 1962

Head and pronotum brown or yellowish in colour, or if black, then each elytron with a lighter mark at basal third; epistome emarginate anteriorly.

...3

Elytra unicolorous.

...4

Elytra with a lighter mark at basal third.

...11

Smaller species (about 1,5-2 mm.); pronotum distinctly transverse and head punctate; elytra 2,5-3-0 times as long as their combined width.

...5

Larger species (about 1,8-2,3 mm.); pronotum about as broad as long or if transverse, then head impunctate; elytra usually less than 2,5 times as long as their combined width.

...6

Epistome concave.

...dolce Lefkovitch, 1962

Epistome convex.

...mestus Lefkovitch, 1962)

Disc of head impunctate but strongly reticulate.

...mossus Lefkovitch, 1962

Disc of head punctured.

...7

Disc of head polygonally reticulate between punctures.

...donacioides (Wollaston)

Disc of head smooth or with irregular groove-like markings between punctures.

...8

Elytra rounded together posteriorly [fig.3].

...majus Lefkovitch, 1962

fig.3

Elytra separately rounded to apico-sutural angle, semitruncate [fig.4]. Good characters for the separation of females have not been discovered.

...9

fig.4

Habitus [fig.5]. Ventral claspers of male weakly developed [fig.6] [fig.7].

...ealaensis Lefkovitch, 1962

fig.5

fig.6

fig.7

Ventral claspers of male strongly developed.

...10

#10

Ventral claspers straight posteriorly; dorsal claspers incompletely divided, in shape together equivalent to a normal tenth tergite [fig.8].

...subtruncatus Lefkovitch, 1962

fig.8

Ventral claspers spatulate posteriorly; dorsal claspers completely divided except for a narrow strut anteriorly, posteriorly no broader than ventral claspers [fig.9].

...africanus Lefkovitch, 1962

fig.9

#11

Head and pronotum reddish brown.

...exornatus (Grouvelle)

Head and pronotum black.

...decoratus (Grouvelle)

#12

First visible abdominal sternite with femoral lines; pronotum convex between lateral lines; anterior angles of pronotum not produced [fig.2].

...politissimus (Wollaston)

fig.2

First visible abdominal sternite without femoral lines; pronotum almost flat between the lateral lines; anterior angles of pronotum somewhat produced.

...bolivari (Grouvelle)

africanus
bolivari
decoratus
dolce
donacioides
ealaensis
exornatus

majus
mestus
mossus
politissimus
subtruncatus
tastus

First prepared: 02.12.2019
Latest edit: 02.12.2019 - 18:04:22

Käfer Europas by Arved Lompe / Placonotus_afr by L.P. Lefkovitch
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