%0 Journal Article
%T Descriptions of New Species of Leucotrichiinae (Trichoptera: Hydroptilidae) from Brazil
%A Robin E. Thomson
%J Psyche
%D 2012
%I Hindawi Publishing Corporation
%R 10.1155/2012/916718
%X Two new species of Hydroptilidae (Trichoptera) from Brazil are described: Betrichia alibrachia sp. n. and Leucotrichia bicornuta sp.n. Both genera are members of the subfamily Leucotrichiinae. Illustrations of male genitalia are provided with each description. These additions bring the total world fauna of Betrichia to 9 species and Leucotrichia to 29 species. 1. Introduction The subfamily Leucotrichiinae (type genus Leucotrichia Mosely, 1934) was established by Flint (1970) and currently contains 16 genera: Abtrichia, Acostatrichia, Alisotrichia, Anchitrichia, Ascotrichia, Betrichia, Celaenotrichia, Cerasmatrichia, Ceratotrichia, Costatrichia, Eutonella, Leucotrichia, Mejicanotrichia, Peltopsyche, Scelobotrichia, and Zumatrichia [1, 2]. The distribution of the subfamily is limited to the New World and found predominantly in Central America [3, 4]. Mosely (1939) established the genus Betrichia for a single species, Betrichia zilbra, from Brazil (Santa Catarina) [5]. No exact reasons were stated, but presumably the genus was erected on account of venational, antennal, and general male genitalic features [3]. Additional species and distributions have been provided by Angrisano, Flint, and Olah and Johanson [6¨C10]. Up to and including species described by Olah and Johanson in 2011, Betrichia contained a total of 8 extant species (Table 1) [2, 10]. As a genus, its distribution is limited to eastern South America (Table 1) [4]. Immature stages are unknown [3]. Adults are attracted to lights and can generally be found near lowland rivers [4]. Table 1: Species and distributions of Betrichia and Leucotrichia. Mosely (1934) established the genus Leucotrichia for a single species, Leucotrichia melleopicta, from Mexico (Tabasco) [11]. Additional species descriptions and distributions have been provided by Angrisano and Burgos, Banks, Botosaneanu (in Botosaneanu and Alkins-Koo), Bueno-Soria, Bueno-Soria et al., Flint, Olah and Johanson, Ross, Rueda Mart¨ªn, Sattler and Sykora, and Wells and Wichard [1, 10, 12¨C23]. Up to and including species described by Olah and Johanson and Rueda Mart¨ªn in 2011, Leucotrichia contained a total of 28 extant species (Table 1) [2, 10, 20]. The distribution of the genus includes most of the continental USA, the Greater and southern Lesser Antilles, Central America, and northern South America (Table 2) [4]. A single fossil species, Leucotrichia adela, is known from Dominican amber [22]. Adults occasionally come to light but are usually taken by net during the day from marginal foliage [4]. Table 2: Species groups of Leucotrichia. In
%U http://www.hindawi.com/journals/psyche/2012/916718/