Notas taxonômicas sobre Exaerete (Hymenoptera: Apidae: Euglossina), com a descrição de uma nova espécie

Abstract

OLIVEIRA, M.L. Taxonomic notes on Exaerete (Hymenoptera: Apidae: Euglossina), with the description of a new species. Biota Neotrop. 11(1): http://www.biotaneotropica.org.br/v11n1/en/abstract?article+bn02011012011.Abstract: Exaerete kimseyae sp. n., a cleptoparasitic bee apparently endemic to Panama is described. This new species was misidentified by Kimsey (1979) as E. trochanterica (Friese, 1910). For this reason Anjos-Silva & Rebêlo (2006), not knowing the true identity of Exaerete trochanterica, described an individual of this species collected in Mato Grosso, Brazil as a new taxon, Exaerete guaycuru. Here E. guaycuru is placed as junior synonym of Exaerete trochanterica.

Eufriesea zhangi sp. n. (Hymenoptera: Apidae: Euglossina), a new orchid bee from Brazil revealed by molecular and morphological characters

“…Although outstandingly conspicuous orchid-bee species have recently been described from time to time (e.g. Moure 1996, Nemésio 2006, Faria & Melo 2011, Oliveira 2011, the recent boom in orchid-bee alpha-taxonomy is mostly due to the recognition of cryptic or sibling species among long established taxa (e.g. Roubik 2004;Rasmussen & Skov 2006;Hinojosa-Díaz & Engel 2007;Bembé 2007Bembé , 2008Ayala & Engel 2008;Nemésio & Bembé 2008;Nemésio 2008Nemésio , 2010Nemésio , 2011bNemésio , c, d, 2012Eltz et al 2011;Hinojosa-Díaz et al 2011.…”

Population Traits and a Female Perspective forAglaeandExaerete, Tropical Bee Parasites (Hymenoptera, Apinae: Euglossini)

“…Because hundreds of E. frontalis have been recorded in that area during programmed 40-year-long studies totaling over 1000 person-hours (see [3,18]), it is unlikely another large Exaerete exists there, only the smaller E. smaragdina and E. dentata. Among larger Exaerete, the E. trochanterica group has a relatively long vertex and rounded head, scutellar knobs much closer together, and a slender hindleg [6][7][8], compared to the morphologically unique E. frontalis (Figures 4 and 5). The trochanterica group is not readily confused with E. frontalis of any size.…”

“…At species level, the identification of Aglae and Exaerete is straightforward. The taxonomic and possible phylogenetic importance of the male mesotibial tuft should not be understated, as past authors [e.g., [7,8,12]] have chosen to do. Those of dentata and trochanterica are very close, with a hirsute area or extended tibial tuft along the mesotibia for nearly half its length, on a margin of the velvet area.…”

“…However, within Euglossini there are no cleptoparasitic species within otherwise nonparasitic genera, as there are in Bombus Latreille [3]. In addition, Exaerete kimseyae Olivera is known from a single specimen [8], found on Barro Colorado Island, Panama, verily within the most intensively sampled euglossine region [3,[9][10][11]. Intensive study and baiting of males there have not produced any more of this species (see Discussion and Conclusion).…”

Three new cryptic species of Euglossa from Brazil (Hymenoptera, Apidae)

“…Although some orchid bee species continued to be described after this flurry of activity, a period of relative taxonomic stasis developed during late 1980s and through the 1990s, until the end of the 90s when new species again began to be described (e.g., Engel 1999 ). In addition to a critical reappraisal of historical type material, otherwise ‘hidden’ sibling and cryptic species were recognized and this led to a new wave of descriptive work over the last decade (e.g., Oliveira and Nemésio 2003 ; Roubik 2004 ; Ramírez 2005 , 2006 ; Parra et al 2006 ; Rasmussen and Skov 2006 ; Nemésio 2006 , 2007a , 2007b , 2008 , 2009 , 2010a , 2011b , 2011c , 2011d , 2012 ; Oliveira 2006 , 2011 ; Bembé 2007 , 2008 ; Hinojosa-Díaz and Engel 2007 , 2011a , 2011b ; Nemésio and Bembé 2008 ; Hinojosa-Díaz et al 2011 , 2012 ; Eltz et al 2011 ; Faria and Melo 2011 , 2012 ; Nemésio and Ferrari 2012 ).…”