02531nas a2200205 4500008004100000245015300041210006900194300001200263490000800275520183400283653001502117653001402132653002402146653001602170653001502186100002402201700002402225700002502249856005102274 2019 eng d00aMolecular phylogenetics and evolution of generic diagnostic morphological features in the doryctine wasp tribe Rhaconotini (Hymenoptera: Braconidae)0 aMolecular phylogenetics and evolution of generic diagnostic morp a164-1710 v2793 a

The doryctine tribe Rhaconotini (Hymenoptera: Braconidae) is a cosmopolitan group of parasitoid wasps that currently comprises 13 valid genera. Despite the extensive taxonomic studies carried out for this tribe, its generic limits are still unclear due to the considerable variation of its diagnostic morphological features. Here we assessed the evolutionary relationships among representative species of eight rhaconotine genera based on mitochondrial and nuclear DNA sequence data. We also performed ancestral character reconstruction analyses of morphological features that are diagnostic at the genus level and assessed the times of origin and main diversification events in the tribe. The Rhaconotini was significantly supported as monophyletic. The widely distributed, speciose genus Rhaconotus Ruthe as well as Ipodoryctes Granger were recovered as non-monophyletic. Rhaconotus species with five visible metasomal tergites were nested in a single clade with the monotypic Aptenobracon Marsh, which also has this morphological feature. Most Rhaconotus species with six or more visible tergites were intermingled with other Oriental and Afrotropical genera that share this condition. The ancestral character reconstruction analyses of the remaining morphological features showed that they probably were gained and lost repeatedly during the evolution of the group. The origin and early diversification events in the Rhaconotini were estimated to occur during the late Eocene to mid-Miocene. Our results highlight the importance of assessing the evolution of diagnostic morphological features to improve the supraspecific classification of insect taxa with extensive morphological homoplasy.

10aBraconidae10aHomoplasy10amolecular phylogeny10aRhaconotini10aRhaconotus1 aJasso-Martinez, J.M1 aBelokobylskij, S.A.1 aZaldivar-Riveron, A. uhttps://doryctinaekey.myspecies.info/node/194100999nas a2200205 4500008004100000245010100041210006900142300001000211490000800221520038600229653001700615653001900632653000800651653001300659653001600672653001600688100001400704700001500718856006000733 2019 eng d00aNew species of the Rhaconotus jacobsoni group (Hymenoptera, Braconidae, Doryctinae) from Vietnam0 aNew species of the Rhaconotus jacobsoni group Hymenoptera Bracon a37-550 v8533 a

Four new species of the genus Rhaconotus Ruthe from Vietnam are described and illustrated – Rhaconotus directus Long, sp. nov., R. laevigatus Long, sp. nov., R. robustus Long, sp. nov., and R. simulatus Long, sp. nov. A key to species of Rhaconotus jacobsoni group from the Oriental region is provided.

10aAfrotropical10aIchneumonoidea10akey10aOriental10aRhaconotini10asystematics1 aOanh, Thi1 aLong, Dang uhttp://zoobank.org/334DE9B4-FDFE-4050-8B7A-04CD96A92155