Bagous lutosus

ROBERTO CALDARA, CHARLES W. O’BRIEN & MASSIMO MEREGALLI, 2017, A phylogenetic analysis of the aquatic weevil tribe Bagoini (Coleoptera: Curculionidae) based on morphological characters of adults, Zootaxa 4287 (1), pp. 1-63 : 42-43

8. Bagous lutosus group

Diagnosis. Body elongate-oval. Tarsi short, tarsomere 3 subcordate and slightly wider than tarsomere 2. Penis body robust, with one pair of elongate sclerotized plates, up-turned at base and covering orifice (char. 79.4), movable (char. 80.1), and with ventral median vermiform sclerite (char. 81.1) only visible when plate is opened. Endophallus with W-shaped sclerite complex basally articulate (char. 84.4), entwined by membranous saccule with many very small spicules and open dorsally (char. 88.1).

Remarks. This monospecific group, presently composed only of B. lutosus , a species widespread in Europe and western and central Asia, is easily distinguishable from all other Bagoini by the unique characters of the sclerites of the penis.

Species included. PAL: * Bagous lutosus (Gyllenhal, 1813) .