Deep phylogenetic divergence between Scolytoplatypus and Remansus, a new genus of Scolytoplatypodini from Madagascar (Coleoptera, Curculionidae, Scolytinae)

نویسنده

  • Bjarte H. Jordal
چکیده

Scolytoplatypodini Blandford is a monotypic tribe of ambrosia beetles found in Asia, Madagascar and Africa. Only three species are currently known from Madagascar and four additional species are here described as new to science. Phylogenetic analyses of morphological and molecular data revealed that four of the seven endemic species are deeply separated from all other species by genetic and distinct morphological characters and therefore placed in a new genus Remansus Jordal. The split between this ancient lineage and Scolytoplatypus Schaufuss was estimated to approximate Palaeocene age (63 Ma), extending the minimum age of ambrosia feeding for this tribe to the beginning of the Palaeocene‒Eocene thermal maximum (PETM). In addition to the ancient origin of Remansus in Madagascar during the Palaeocene, a second origin occurred in Scolytoplatypus no more than 13 Ma. A geographical origin of the latter in South-Eastern Africa was unequivocally inferred from the phylogenies.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Description of new Dryocoetes (Coleoptera, Curculionidae, Scolytinae) speciesfrom Afghanistan and Northern India and redescription of Scolytoplatypus kunala Strohm

A new bark beetle species, Dryocoetes brownei from Northern India and Afghanistan, is described as a new to science and redescription of Scolytoplatypus kunala Strohmeyer, 1908, previously known only from the female holotype, is provided.

متن کامل

Two new species of Aphanarthrum Wollaston (Coleoptera: Curculionidae, Scolytinae) associated with Euphorbia in South Africa

Two species of Aphanarthrum collected from dead spurges of Euphorbia in South Africa are illustrated and described as new to science. They represent the first records from the southern parts of Africa and thus significantly extend the known distribution of the genus. Analyses of the phylogenetic relationships of the species of Aphanarthrum and Coleobothrus based on molecular and morphological c...

متن کامل

New data on Neotropical Scolytus Geoffroy, 1762 with description of five new species from Peru (Coleoptera, Curculionidae, Scolytinae)

Five new species of Scolytus Geoffroy, 1762 (Coleoptera: Curculionidae: Scolytinae) are described from Peru, namely Scolytus woodi, Scolytus carveli, Scolytus vagabundus, Scolytus lindemani, Scolytus mozolevskae .The following new synonym is established: Scolytus angustatus Browne, 1970 (= Scolytus facialis Schedl, 1973, syn. n.) New records of the Scolytus species in Loreto, Junin ,Cusco and M...

متن کامل

New species and records of Cactopinus Schwarz with a key to species (Coleoptera, Curculionidae, Scolytinae)

Three new species in the genus Cactopinus Schwarz are described from Mexico and the U.S., bringing the total of known species to 21. New host and distribution records and a new key to species are included.

متن کامل

Wallacellus is Euwallacea: molecular phylogenetics settles generic relationships (Coleoptera: Curculionidae: Scolytinae: Xyleborini).

Euwallacea Hopkins and Wallacellus Hulcr & Cognato are ambrosia beetle genera within the tribe Xyleborini (Coleoptera: Curculionidae: Scolytinae). Several species have recently received attention due to their establishment in non-native regions with serious ecological and economic consequences. To clarify generic placement of these species, we tested reciprocal monophyly of the two genera and t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره 463  شماره 

صفحات  -

تاریخ انتشار 2013