Epanthidiina, Parizotto & Melo, 2022

Parizotto, Daniele R. & Melo, Gabriel A. R., 2022, The bee subtribe Epanthidiina, a new taxon for the Neotropical clade of Anthidiini (Hymenoptera, Apidae, Megachilinae), Revista Brasileira de Entomologia (e 20220006) 66 (2), pp. 1-5 : 2

Epanthidiina subtrib. nov.

urn:lsid:zoobank.org:act:D4CF9618-547D-408C-838F-CA3D9CB4E93A

Type genus: Epanthidium Moure, 1947

Diagnosis and Comments. It corresponds to the clade referred as “ Anthodioctes group” by Litman et al. (2016). The phylogenetic relationships among the genera included here in Epanthidiina were recently investigated byParizotto et al. (2021). The results demonstrated that this subtribe constitute a monophyletic group that can be recognized by the following features: internal margin of the antennal socket projected; a carina on the inner surface of the scape; and a reduction on the ventral region of the gonocoxite of the male.

Additionally, the taxa usually have a juxtantennal carina (except in Tylanthidium Urban, Hypanthidium Cockerell,Allanthidium Moure, Anthidianum Michener, Chrisanthidium Urban and Notanthidium Isensee ) and the absence of dorsal region of gonobase (also absent in members of other subtribes, as Loyolanthidium Urban and some Anthidium Fabricius ). A complete list of the genera included in the subtribe Epanthidiina is presented in Table 1 .

Description. Sculpture of integument coarse, diameter of punctures more than twice the diameter of the setae arising from them; mandible with three or four teeth; maxillary palpi with two or three articles; juxtantennal carina usually present; paraocular carina present; internal margin of the antennal socket projected; inner surface of scape concave, with a longitudinal carina; first flagellomere of female short, equal to or shorter than length of second flagellomere;small postocellar area (distance between the posterior ocelli and the preoccipital margin is smaller than the distance between the posterior ocelli and compound eyes); pronotal lobe with carina or lamella; basal area of the propodeum usually with foveae (exceptions are Aztecanthidium Michener & Ordway and Notanthidium ); fovea of the propodeal spiracle usually delimited by a carina (except in Aztecanthidium ); S8 of male elongated, triangle-shaped; male genitalia with gonobase incomplete dorsally and gonocoxite narrow ventrally.