Christoph Germann

Five new species of Setizembrus Germann in the subtribe Cotasteromimina are described: Setizembrus bannapei Germann sp. nov., S. brevipes Germann sp. nov., S. globosus Germann sp. nov., S. longipes Germann sp. nov. and S. ottobelli Germann sp. nov.. Based on these newly discovered species, the characters defining the genus are reassessed, and a new key to all ten species of the genus is presented.

The genus Setizembrus Germann gen. nov., type species Setizembrus geiseri Germann sp. nov., is described here with five new species from Malaysia. It belongs to the subtribe Cotasteromimina (Pissodini, Molytinae). Setizembrus shares morphological similarities with the genera Obhylius Germann, 2021, Pseudohylobius Morimoto, 1962, Seticotasteromimus Germann, 2013 and Zembrus Germann & Grebennikov, 2020. All of the new species (Setizembrus semai Germann sp. nov., S. bispinosus Germann sp. nov., S. geiseri Germann sp. nov., S. lyali Germann sp. nov.. and S. pendleburyi Germann sp. nov.) were collected on mountain peaks or on a high-elevation plateau. The species are described, extensively photographed, and a diagnostic key to genera within Cotasteromimina and to all new species of Setizembrus is given.

Dichotrachelus sonjaesp. nov. was discovered in a cold north-exposed scree slope in the Togano ridge area in Piemonte North of Val Grande. It is described and compared with the most similar species. Based on morphology and molecular data presented here, Dichotrachelus lepontinus Osella, 1971, distributed from Piemonte in Italy (Monte Rosa) eastwards to the Misox mountains of Switzerland, is its sister species. Dichotrachelus meregallii Osella, 1971 is another closely related species. Phylogeographic and biogeographical considerations on the development of that particularly lithophilous and high alpine living group of Dichotrachelus are presented.

We describe a new genus and species of weevils, Ymmox hermes gen. et sp. n., based on three specimens from Cameroon and Equatorial Guinea. A phylogenetic analysis using 24 terminals scored for 79 adult morphological characters places the new taxon into the monophyletic, although weakly supported, tribe Ithyporini of the subfamily Molytinae. The female elytro-tergal stridulatory system and the elongate shelf posterior to the ostium of the penis are two potential synapomorphies of the tribe. We illustrate the new species and provide its DNA barcode sequence. Zusammenfassung Wir beschreiben eine neue Rüsselkäfergattung und -art, Ymmox hermes gen. et sp. n., auf der Basis von drei Exemplaren aus Kamerun und Äquatorialguinea. Eine phylogenetische Analyse mit 24 terminalen Taxa und nach 79 morphologischen Merkmalen kodiert erlaubt es, das neue Taxon in den monophyletischen, jedoch nur schwach gestützten Tribus Ithyporini der Unterfamilie Molytinae zu stellen. Das elytrotergale Stridulationssystem der Weib-chen und der langgezogene hintere Schaft beim Ostium des Penis sind zwei mögliche Synapomorphien dieser Tribus. Wir illustrieren die neue Art und stellen einen DNA-Sequenzabschnitt zur Verfügung.

We here describe Phyllobius occultatus Germann, Wartmann & Winkelmann, a new species close to Phyllobius brenskei Schilsky, 1911 from Peloponnese, and Ph. nigrofasciatus Pesarini, 1975 from Turkey. A confusion of specimens attributed erroneously to Ph. brenskei led to the unawareness of the new species which had been photographed and known since its inclusion in the catalogue of Greek weevils.

We describe Brachysomus bulbosus sp. nov. from Plav municipality in Montenegro. The habitus of the new species shows similarities with Brachysomus (Hippomias) albanicus (Apfelbeck, 1911), B. (Hippomias) commutatus Kostal, 1992, but also with B. (s. str.) deceptorius Białooki & Krátký, 2015. Based on characteristics of the head, vestiture and genitalia we suggest a placement in the Brachysomus simplex species group. The new species differs remarkably from all congeners by its comparatively bare, shiny and subglobose body.

Überprüfte Sammlungsexemplare und aktuelle Funde des besonders selten gefundenen und nur äusserst lokal vorkommenden Adosomus roridus aus der Schweiz führten zur Entdeckung von Eiern, Larven und Puppen in einer neuen Wirtspflanze Artemisia absinthium L. in der subalpinen Felsensteppe in Zermatt. Fotos der Habitate, der Pflanze und der Präimaginalstadien werden gezeigt und die Funde werden vorgestellt und diskutiert.

During an excursion to northern Greece, a new species of Pseudomyllocerus Desbrochers des Loges, 1872 was discovered. It is described here as Pseudomyllocerus thracicus Germann, Kakiopoulos and Borovec sp. nov. and compared to all hitherto known species of that genus. Based on the examination of specimens, the new synonymies Pseudomyllocerus canescens (Germar, 1823) = P. invreae (F. Solari, 1948) syn. nov., and P. canescens = P. ophthalmicus (Stierlin, 1888) syn. nov. are established.

Anlässlich einer Exkursion in die Gebirgszüge im Norden Portugals konnten Imagines und Larven der wenig bekannten Donus-Art vom Doldenblütigen Heidekraut (Erica umbellata L.) auf submontaner Lage gesammelt werden. Bisher waren Heidekrautgewächse (Ericaceae) als Wirtspflanzen für Hyperinae gänzlich unbekannt. Eine durchgeführte Zucht bestätigte diese Wirtspflanzenbindung. Die nomenklatorische Änderung Donus proximus (Capiomont, 1876), comb. nov. von Brachypera wird eingeführt, Imago, Larve und der Kokon werden vorgestellt, und das Habitat wird charakterisiert.

The fourth species of Anchonidium sensu stricto from Western Europe is described, photographed and compared with its congeners; an updated key of the genus is given. The habitat in the northern mountain chains in Portugal in the native Quercus mountain forests is characterized and illustrated.