New species and a new genus of Philopotamidae from the Andes of Bolivia and Ecuador (Insecta, Trichoptera)

Abstract

A new genus and species of Philopotamidae (Philopotaminae), Aymaradellaboliviana, is described from the Bolivian Andes of South America. The new genus differs from other Philopotaminae by the loss of 2A vein in the hind wing and, in the male genitalia, the synscleritous tergum and sternum of segment VIII, and the elongate sclerotized dorsal processes of segment VIII. The first record of Hydrobiosella (Philopotaminae) in the New World is also provided with a new species from the Andes of Ecuador, Hydrobiosellaandina. In addition, a new species of the Neotropical genus Chimarrhodella (Chimarrinae), Chimarrhodellachoco, is described from the Choco-Andean region of Ecuador, and Chimarrhodellaperuviana (Ross) is recorded from Ecuador for the first time. Lastly, Wormaldiaimbrialis (Philopotaminae), new species, is described, also from the Ecuadorian Choco.

A new genus and new species of Ecuadorian Philopotamidae (Trichoptera)

“…-Touma et al (2017) predicted that ~ 50% of caddisflies species are yet to be discovered in Ecuador. In 2018, three new species of Philopotamidae were described and two new records, one of them a new continental record, were established for Ecuador (Holzenthal et al 2018). Here, we describe eight new species of philopotamids, including one new genus, which indicates, on one hand, the amazing diversity of caddisflies of the Tropical Andes, and on the other, that there are still many species to be discovered in this area, probably more than previously thought.…”

“…Pencil sketches were scanned and placed in Adobe Illustrator (Creative Cloud version) to serve as a template for vector illustrations. Morphological terminology follows that of Blahnik (1998Blahnik ( , 2002 and Holzenthal et al (2018). Each specimen or lot was affixed with a 2D data matrix barcode label bearing a unique alphanumeric sequence beginning with the prefix UMSP to serve as a specimen identifier for upload of collection, specimen, and taxonomic data to the University of Minnesota Insect Collection's Specify database [https://www.specifysoftware.org/], available via the SCAN portal [https://scan-bugs.org/portal/].…”

“…Here, we describe eight new species of philopotamids, including one new genus, which indicates, on one hand, the amazing diversity of caddisflies of the Tropical Andes, and on the other, that there are still many species to be discovered in this area, probably more than previously thought. Moreover, the biogeographical and phylogenetic relationships of Philopotamidae in this highly diverse area are still unknown (Holzenthal et al 2018). (Jonas Nilsson), and Finca Upano (RhoAnn Wallace and Galo Real) for the facilities during our field trips.…”

Two new species and a new distributional record of Alterosa (Trichoptera: Philopotamidae) from southeastern Brazil

“…Philopotamidae is a worldwide caddisfly family with 22 extant genera and approximately 1,300 described species distributed into three subfamilies: Rossodinae, with 16 species in the genus Rossodes Özdikmen & Darilmaz (2008); the cosmopolitan Chimarrinae, with about 800 extant species distributed into three genera; and Philopotaminae, with more than 400 described species within 18 genera (Blahnik, 2005;Özdikmen & Darilmaz, 2008;Gibon, 2013;Holzenthal et al, 2018). Most of the Philopotaminae genera have relatively restricted distribution .…”

“…Most of the Philopotaminae genera have relatively restricted distribution . Five genera are recorded in Neotropical region: Wormaldia McLachlan (1865), with about 200 species in all biogeographic regions except Australasian (50 of them occur in Neotropics); Hydrobiosella Tillyard (1924), with about 30 species in Australasia and one species from the Andes of Ecuador; the monotypic Aymaradella Holzenthal, Blahnik & Ríos-Touma (2018), restricted to the Bolivian Andes; Sortosa Navás (1918), with 20 extant species restricted to southern Chile and adjacent regions of Argentina; and Alterosa Blahnik (2005), endemic to Brazil with 39 described species (Blahnik, 2005;Muñoz-Quesada & Holzenthal, 2015;Holzenthal & Calor, 2017;Holzenthal et al, 2018).…”