New species of Centris (Xanthemisia) Moure from the Mesoamerican Dominion and the Mexican Transition Zone (Hymenoptera: Apidae).

Three new species of oil-collecting bees of the genus Centris (Xanthemisia) Moure are described and illustrated: C. jakalteka sp. nov.

Species of the bee genus Centris Fabricius, 1804 described by Heinrich Friese (Hymenoptera: Apidae).

Primary types of Centris bees described by the German melittologist Heinrich Friese were studied. To stabilize the application of some names, lectotypes were designated for C. agilis abdominalis, C.

Lectotype designations taxonomic notes and new synonymies in some species of the bee genus Centris Fabricius, 1804 described by Frederick Smith (Hymenoptera: Apidae).

In this paper the primary types of Centris bees described by the British entomologist Frederick Smith deposited in the Natural History Museum, London and in the Oxford University Museum of Natural History, Oxford, United Kingdom were studied. To stabilize the application of some names, lectotypes were designated for C. agilis, C.

First record and new species of the parasitoid wasp Chaenotetrastichus Graham (Hymenoptera: Eulophidae) for the Neotropical Region, with notes on its biology and a key for the species of the genus.

Chaenotetrastichus neotropicalis sp. nov. from the Atlantic Forest, Brazil, is described and illustrated.

Lectotype designations, taxonomic notes and new synonymies in some species of the bee genus Centris Fabricius, 1804 described by Amédée Lepeletier de Saint-Fargeau (Hymenoptera: Apidae).

In this paper the primary types of Centris described by Amédée Lepeletier de Saint-Fargeau in 1841 deposited at Muséum National d'Histoire Naturelle, France and Hope Entomological Collection, Oxford University Museum of Natural History, United Kingdom were studied. To stabilize the application of some names, lectotypes were designated for C. bimaculata, C.

Lectotype designations, taxonomic notes and new synonymy in some species of the bee genus Centris Fabricius, 1804 described by William Henry Fox (Hymenoptera: Apidae).

In this paper, the primary types of Centris described by the American doctor and naturalist William Henry Fox deposited at the Academy of Natural Sciences, Drexel University, Philadelphia and in the United States National Museum, Washington, United States were studied. To stabilize the application of some names, lectotypes were designated for C. atriventris Fox (= C.

Taxonomic notes, lectotype designations and new synonymies in some species of the bee genus Centris Fabricius, 1804 described by Sándor Mocsáry and Heinrich Friese (Hymenoptera: Apidae).

In this paper some primary types of Centris bees described by Sándor Mocsáry and Heinrich Friese deposited at Magyar Természettudományi Múzeum, Hungary were studied. To stabilize the application of some names, lectotypes were designated for C. aeneiventris Mocsáry, C.

Taxonomic revision of Lepidura Townes, 1971 (Hymenoptera: Ichneumonidae: Mesochorinae) with the description of three new species, new distribution records and a key to the all known species.

A taxonomic review of Lepidura Townes is presented, with three new species described. The following species are recognized: L. abbreviata Dasch, L.

Ichneumonid wasps of the subfamily Mesochorinae: new replacement names, combinations and an updated key to the World genera (Hymenoptera: Ichneumonidae).

Mesochorinae is a relatively small but widely distributed subfamily of Ichneumonidae, with most species occurring in the Neotropical Region. Currently, there are two classifications in use regarding mesochorine genera, causing numerous taxonomic conflicts. To resolve nomenclature conflicts, seven new replacement names and twelve new combinations are proposed for species now recognized as members of Mesochorus Gravenhorst.

Discovery of two new Andean species of Scolomus (Townes Townes), with a key to all known species (Hymenoptera: Ichneumonidae: Metopiinae).

Scolomus Townes Townes is a widely distributed genus of the family Ichneumonidae, with most species occurring in the New World. Herein two new species from Chile are described and illustrated. Scolomus maculatus sp.

Taxonomic note on the oil-collecting bee Centris dimidiata (Olivier, 1789 (Hymenoptera: Apidae: Centridini).

Centris dimidiata (Olivier) is currently considered an easily recognizable species widely distributed throughout the Amazon basin, mainly in Brazil. For much of its taxonomic history, C. atriventris Mocsáry and C.

A synopsis of the subgenus Centris (Hemisiella) Moure, 1945 (Hymenoptera: Apidae: Centridini) in Colombia, with description of a new species.

A synopsis of the species of Centris subgenus Hemisiella Moure in Colombia is presented. The species included are Centris dichrootricha (Moure), C. facialis Mocsáry, C.

Two new species of Centris (Aphemisia) Ayala, 2002 from Colombia with a synopsis of the subgenus for the country (Hymenoptera: Apidae: Centridini).

A synopsis of the species of Centris subgenus Aphemisia Ayala in Colombia is presented. A total of six species were recognized: C. lilacina Cockerell, C.

Eleven new replacement names in the genus Mesochorus Gravenhorst, 1829 (Ichneumonidae: Mesochorinae).

Eleven new replacement names in the genus Mesochorus Gravenhorst, 1829 are proposed due the synonymy with Plectochorus Uchida, 1933 and Stictopisthus Thomson, 1886 made by Wahl in his cladistic analysis of the genera of Mesochorinae.

Lectotype designations and new synonymies in the Neotropical bee genus Centris Fabricius, 1804 (Hymenoptera: Apidae).

Ten name-bearing specimens of Centris Fabricius deposited in the Hungarian Natural History Museum are examined and nine lectotypes are designated for the following species: C. atripes Mocsáry, 1899; C. flavilabris boliviensis Mocsáry, 1899; C.

Taxonomic revision of the cleptoparasitic bee genus Epiclopus Spinola, 1851 (Hymenoptera: Apidae: Ericrocidini).

A taxonomic revision of the cleptoparasitic bee genus Epiclopus Spinola is presented. The following species are recognized: Epiclopus gayi Spinola, E. lendlianus (Friese), E.

Revision of the species of Centris (Xanthemisia) Moure, 1945 (Hymenoptera: Apidae: Centridini) from the Caribbean island.

A revision of the species of Centris subgenus Xanthemisia Moure from the Caribbean islands is presented. The species identified are C. aethiops Cresson, C.

Five new species of Baeus Haliday, 1833 (Hymenoptera: Platygastroidea: Scelioninae) from Brazil with an updated key to Neotropical species.

The species of the genus Baeus are small endoparasitoids wasps that attack spiders' egg sacs. Although there are data of occurrence in several biogeographical regions, their distribution records are scarce, especially due to their small size, mak- ing difficult to collect them in natural environments. In this paper, five new species of Baeus are described as results of collections made in southeastern Brazil: Baeus fluminensis new species, B.

A new species of Centris (Xanthemisia) Moure, 1945 from South America with a synopsis of the known species of the subgenus in Colombia (Hymenoptera: Apidae: Centridini).

A synopsis of the species of Centris subgenus Xanthemisia Moure in Colombia is presented. The species identified are Centris ferruginea Lepeletier, C. lutea Friese and C.

Revision of the bee subgenus Centris (Wagenknechtia) Moure, 1950 (Hymenoptera: Apidae: Centridini).

In this paper, a complete taxonomic revision of the species of Centris (Wagenknechtia) Moure is presented for the first time. The following species are recognized: Centris cineraria Smith, C. escomeli Cockerell, C.