01858nas a2200229 4500008004100000245011000041210006900151300001200220490000800232520114900240653001501389653001901404653003101423653000901454653001601463653001301479100001901492700002001511700002101531700002501552856005101577 2016 eng d00aSergey gen. n., a new doryctine genus from temperate forests of Mexico and Cuba (Hymenoptera, Braconidae)0 aSergey gen n a new doryctine genus from temperate forests of Mex a143-1640 v5893 a

The new doryctine genus Sergey gen. n. is described with four new species (S. cubaensis Zaldívar-Riverón & Martínez, sp. n., S. coahuilensis Zaldívar-Riverón & Martínez, sp. n., S. tzeltal Martínez & Zalídivar-Riverón, sp. n., S. tzotzil Martínez & Zalídivar-Riverón, sp. n.) from temperate forests of Mexico and Cuba. Similar to many other doryctine taxa, the new genus has a considerably elongated, petiolate basal sternal plate of the first metasomal tergite, although it can be distinguished from these by having the mesoscutum sharply declivous anteriorly with sharp anterolateral edges. The described species have been characterised molecularly based on two mitochondrial (COI, cyt b) and one nuclear (28S) gene markers. Based on the mitochondrial gene genealogies reconstructed, the evidence suggests the existence of incomplete lineage sorting or hybridization in the populations from Chiapas and Oaxaca assigned to S. tzeltal sp. n.

10aDoryctinae10aIchneumonoidea10aincomplete lineage sorting10akeys10anew species10ataxonomy1 aMartinez, J.J.1 aLázaro, R.N.M.1 aPedraza-Lara, C.1 aZaldivar-Riveron, A. uhttps://doryctinaekey.myspecies.info/node/190603170nas a2200217 4500008004100000245013800041210006900179520246000248653001902708653001002727653000902737653000902746100002502755700001902780700002402799700002102823700001502844700001702859700002502876856005102901 2014 eng d00aSystematics and evolution of gall formation in the plant-associated genera of the wasp subfamily Doryctinae (Hymenoptera: Braconidae)0 aSystematics and evolution of gall formation in the plantassociat3 a
Gall formation is a specialised form of phytophagy that consists of abnormal growth of host plant tissue induced by other organisms, principally insects and mites. In the mainly parasitoid wasp subfamily Doryctinae, gall association, represented by gall inducers, inquilines and their parasitoids, is known for species of seven genera. Previous molecular studies recovered few species of six of these genera as monophyletic despite their disparate morphologies. Here, we reconstructed the evolutionary relationships among 47 species belonging to six gall-associated doryctine genera based on two mitochondrial and two nuclear gene markers. Most of the Bayesian analyses, performed with different levels of incomplete taxa and characters, supported the monophyly of gall-associated doryctines, with Heterospilus (Heterospilini) as sister group. Percnobracon Kieffer and Jörgensen and Monitoriella Hedqvist were consistently recovered as monophyletic, and the validity of the monotypic Mononeuron was confirmed with respect to Allorhogas Gahan. A nonmonophyletic Allorhogas was recovered, although without significant support. The relationships obtained and the gathered morphological and biological information led us to erect three new genera originally assigned to PsenobolusFicobolus gen.n. (F. paniaguai sp.n. and F. jaliscoi sp.n.), Plesiopsenobolus gen.n. (Pl. mesoamericanus sp.n., Pl. plesiomorphus van Achterberg and Marsh comb.n., and Pl. tico sp.n.), and Sabinita gen.n. (S. mexicana sp.n.). The origin of the gall-associated doryctine clade was estimated to have occurred during the middle Miocene to early Oligocene, 16.33–30.55 Ma. Our results support the origin of true gall induction in the Doryctinae from parasitoidism of other gall-forming insects. Moreover, adaptations to attack different gall-forming taxa on various unrelated plant families probably triggered species diversification in the main Allorhogas clade and may also have promoted the independent origin of gall formation on at least three plant groups. Species diversification in the remaining doryctine taxa was probably a result of host shifts within a particular plant taxon and shifts to different plant organs.
10aage estimation10aclade10agall10akeys1 aZaldivar-Riveron, A.1 aMartinez, J.J.1 aBelokobylskij, S.A.1 aPedraza-Lara, C.1 aShaw, S.R.1 aHanson, P.E.1 aVarela-Hernandez, F. uhttps://doryctinaekey.myspecies.info/node/1822