Specimens of Trichoceble Thomson, 1859, are often rare or, at least, uncommon. That

explains why this description of Trichoceble dogueti n. sp. has been carried out on just one specimen — the holotype— which was collected by Serge Doguet near Areopoli, southern Greece, in 1995. The specimen, previously preserved in the collection of Robert Constantin, was kindly given to the author and the former is gratefully acknowledged for the courtesy. The recent publication of a comprehensive revision of the European Trichoceble by Liberti (2012) makes possible the description on a singleton.

This article was written in tribute to the memory of Serge Doguet, to recall the field collections

we did, several years in a row, together with a group of coleopterists friends specializing in Chrysomelidae.

Materials and methods

Dissection has been carried out as described in Liberti (2005), embedding genitalia and related parts in Dimethyl Hydanthoin Formaldehyde (DMHF). Drawings have been made by means of a calibrated grid placed on the ocular lens of a

stereomicroscope. Photographs have been taken with a camera placed on the video tube of the

same stereomicroscope and the multiple focus frames assembled with Helicon Focus 6. Terms used in description can be found either in the glossary included in Coo ter & Barclay

(2006: 413) or in Liberti (2012). However, for easier reading, three terms are here below explained. – Aedeagus. The assemblage of two sclerotized organs: median lobe (carrying the inner structure named internal sac) (fig. 2) and tegmen (fig. 3: here separated from median lobe)

which, in family Dasytidae, is placed astride the median lobe; a drawing can be found in

Liberti (2012: 200, fig. 7). The internal sac of Trichoceble (as well as all other Rhadalinae) includes a membranous part and a sclerotized piece (named “ dorsal lever”), well visible when genitalia are embedded in a transparent medium like DMHF. – Dorsal lever. The mobile, sclerotized spine-shaped piece inside the median lobe (of

aedeagus) apical half, typical of the subfamily Rhadalinae (fig. 2: the part coloured black). – Parameres. The two symmetrical lobes which, together, constitute the apical part (about

two thirds) of tegmen. Bulletin de la Société entomologique de France, 123 (2), 2018 : 209-212.