Generic revision and phylogenetic analysis of the Metriorrhynchinae (Coleoptera: Lycidae)

The subfamily Metriorrhynchinae is the most species-rich clade of Lycidae (Coleoptera). A recent proposal suggests that the Erotinae is a sister group of the Metriorrhynchinae. Within the Metriorrhynchinae, evidence is presented for the monophyly of the Conderini and Metriorrhynchini and their sister group position. The Trichalina, Hemiconderina and Metriorrhynchina form the tribe Metriorrhynchini. The relationships between the basal lineages of this group are poorly understood. Several clades are distinguished within the Metriorrhynchina, but there is only weak evidence supporting a relationships between them. The distribution of individual clades is discussed. Carathrix Kleine, 1926 (= Pseudodontocerus Pic, 1921), Dilolycus Kleine, 1926 (= Metriorrhynchus Gemminger et Harold, 1869), Flabelloporrostoma Pic, 1923 (= Metriorrhynchus Gemminger et Harold, 1869), Rossioptera Kasantsev, 1988 (= Xylobanellus Kleine, 1930), Samanga Pic, 1921 (= Broxylus C.O. Waterhouse, 1879), Strophicus C. O. Waterhouse, 1879 (= Enylus C.O. Waterhouse, 1879), and Tapromenoeus Bocak et Bocakova, 1989 (= Prometanoeus Kleine, 1925) are proposed as junior synonyms. Pseudosynchonnus Pic, 1922 is transferred to the Erotinae (Taphini) and Pseudosynchonnus Pic, 1922, Protaphes Kleine, 1926, and Parapyropterus Kleine, 1926 are proposed to be junior subjective synonyms of Lycoprogenthes Pic, 1915. Redescriptions of Metriorrhynchinae genera and a key to genera are provided.