Itauara marcellina Neto & Passos 2023, sp. nov.
Creators: name: Neto, Jaime De Liege Gama
name: Passos, Mahedy Araujo Bastos
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Glossosomatidae
Itauara
Itauara marcellina

description: Itauara marcellina sp. nov.
Figures: 1A–1C
Diagnosis. This new species belongs to the Itauara amazonica Species Group of Robertson & Holzenthal (2011), as recognized by the presence of a fused inferior appendage process. Known only from the male holotype, Itauara marcellina sp. nov. can be recognized by the presence of a pair of elongate, sclerotized horn-like lateral processes along the posterior margin of tergum X. This species is similar to I. peruensis Robertson & Holzenthal 2011 by having similarly shaped ventrolateral processes of tergum X. Itauara marcellina sp. nov. can be distinguished from I. peruensis by the phallicata with membranous, rounded, lateral flanges in the new species, but without lateral flanges in I. peruensis.
Description. Male (in alcohol). Body, wings, and appendages pale or tawny-brown in alcohol. Wings with conspicuous white spot at the arculus and faint transverse line along anastomosis. Forewing narrow past anastomosis, its apex acute. Forewing venation typical of the genus with forks I–III present. Hind wing margins nearly parallel, tapering only slightly past anastomosis; apical forks II, III, and V present. Tibial spurs 1,3,4; foretibial spur extremely reduced and hair-like. Sixth sternal process thumb-like, apex rounded, often associated with weak oblique apodeme posteriorly.
Male genitalia. Segment IX in lateral view ventrally short, much longer at mid-height, anterior margins rounded, posterolateral margins membranous or very slightly sclerotized (Fig. 1A); sternum IX transversely narrow (Fig. 1C). Tergum X incompletely fused to tergum IX, with membrane or lightly sclerotized region ventrolaterally (Fig. 1A), subrectangular in dorsal view (Fig. 1B); posterodorsal margin with pair of elongate, sclerotized, horn-like processes, apically pointed, projecting posterad (Figs. 1A, 1B, dm. pr.); ventrolateral margins each with flange-like process with several small, irregular, seta-bearing lobes (Figs 1A, 1B, vl. pr.). Inferior appendages fused as single, broad, irregular, setose process (Fig. 1A, inf. ap.), broadest basally, fused to phallobase basoventrally (Fig. 1C, inf. ap.). Parameres present, paired, arising basoventrally from fused endotheca and phallobase, sclerotized and rod-like, slender, elongate, recurved basally, nearly straight in mid-length, slightly upturned distally, pointed apically (Figs. 1A, 1C, pmr.). Phallobase reduced, membranous (Fig. 1C, phb.), difficult to discern in lateral view. Phallicata in lateral view forming short slightly sclerotized dorsal sheath (Fig. 1A, phc.), medially with pair of membranous rounded ventrolateral flanges fused mesobasally and projecting posteroventrad (Fig. 1A, phc. pr.), with U-shaped internal sclerite (Fig. 1C, phc. pr.). Endophallus in lateral view membranous and long, sinuous apically (Fig. 1A, enph.)
Female, larva, pupa, and egg. Unknown.
Holotype male. BRAZIL: Roraima: Iracema municipality, Vicinal Campos Novos (Fazenda Rancho Fundo), Second order stream, 2°21′26.22”N, 61°23′38.98″W, 209 m a.s.l., 16 Mar 2018. Pennsylvania light trap, J.L. Gama Neto, col. (alcohol; MPEG).
Distribution. Brazil (Roraima, type locality only).
Etymology. The epithet “marcellina” is a diminutive for the Portuguese feminine noun “Marcella”, in honor of Marcella Passos Gama, daughter of the authors, affectionately nicknamed “marcellinha” (= little Marcella) by friends and family.
description: Published as part of Neto, Jaime De Liege Gama & Passos, Mahedy Araujo Bastos, 2023, Protoptilinae (Trichoptera: Glossosomatidae) from Roraima state, northern Brazil: A new species of Itauara Müller 1888 and new distributional records for species of Protoptila Banks 1904, pp. 96-100 in Zootaxa 5244 (1) on pages 97-98, DOI: 10.11646/zootaxa.5244.1.9, http://zenodo.org/record/7645872