Two species previously placed in Euconnus s. str. belong in the endemic Madagascan subgenus Glabriconnus (Coleoptera: Staphylinidae: Scydmaeninae)
Jałoszyński Pawel
Acta Entomologica Musei Nationalis Pragae 58(2): 553-558, 2018
Published online: 26th November 2018
Published in print: 31st December 2018
Views: 1206
Abstract: The Madagascan species Euconnus andringitrae Franz, 1986 and E. berentyensis
Franz, 1986 are redescribed and transferred from Euconnus s. str. to the
subgenus Glabriconnus Jałoszyński, 2016. They share with E. (Glabriconnus)
aterrimus Franz, 1986 the evenly convex frons and vertex, and lack of a pair of
diffuse longitudinal carinae (present in all remaining species of Glabriconnus),
and with E. (Glabriconnus) andranomenaus Jałoszyński, 2016 the presence of
two distinct hypomeral grooves (one variously distinct groove in remaining
Glabriconnus species). The unique character for Euconnus andringitrae and E.
berentyensis is the transverse antebasal groove connecting a pair of lateral
pits, which was not previously known in any other Glabriconnus. Consequently,
the diagnosis of Glabriconnus is here emended to include a considerable
variability in pronotal structures. The distribution of Glabriconnus in
Madagascar is summarized.
Key words: Coleoptera, Scydmaeninae, Glandulariini, Euconnus, taxonomy, Madagascar