Ochrotrichia buenosoria, Moreno & Desidério & Pes & Hamada, 2021

Moreno, Lucas, Desidério, Gleison Robson, Pes, Ana Maria & Hamada, Neusa, 2021, Novelties in centralAmazonian microcaddisflies: Three new species of Ochrotrichia Mosely (Trichoptera: Hydroptilidae), Zootaxa 5060 (2), pp. 250-264 : 256-259

publication ID

https://doi.org/ 10.11646/zootaxa.5060.2.6

publication LSID

lsid:zoobank.org:pub:AABD8818-6D30-46E5-B758-21659DD90A4E

DOI

https://doi.org/10.5281/zenodo.5633579

persistent identifier

https://treatment.plazi.org/id/546887A9-FFD3-FFFA-FF38-3EC003504482

treatment provided by

Plazi

scientific name

Ochrotrichia buenosoria
status

sp. nov.

Ochrotrichia buenosoria sp. nov.

( Figures 5A–5C View FIGURE 5 , 6A–6B View FIGURE 6 , 7A–7H View FIGURE 7 )

Material examined. Holotype male ( INPA). BRAZIL: Amazonas : Manaus , Reserva Ducke, Igarapé do Ipiranga, 02°58’53.6”S, 59°54’24.4”W, el. 95 m a.s.l., 07–19.iv.2017, A.M.O. Pes, G. R. Desidério, P. Barcelos-Silva legs., Malaise trap. GoogleMaps

Paratypes: BRAZIL: Amazonas : Manaus , Reserva Ducke, Igarapé do Ipiranga, 02°58’53.6”S, 59°54’24.4”W, el. 95 m a.s.l., 1 male ( INPA), 03–17.vii.2015, A.M.O. Pes, G. R. Desidério, P. Barcelos-Silva, W. Xavier legs., Malaise trap GoogleMaps .

Diagnosis. The new species shares the ellipsoid shape of the inferior appendages (in lateral view) and the apex of tergum X produced on the left side (in dorsal and lateral views) with O. manuensis being the most similar species. However, the new species has a robust tergum X, but O. manuensis has a narrow, triangular tergum X, tapering toward the apex. Also, the new species has each inferior appendage with a row of 3 or 4 long, basal spines on the inner margin, but these spines are absent in O. manuensis (see Flint & Bueno-Soria 1999).

The new species can be distinguished from all other species in the genus by having a robust tergum X, with each side of the base having an obliquely pointed lateral process in dorsal view, and the inferior appendages each having a row of 3–4 long, stout basal spines on the inner margin.

Description. Male adult (n = 2). Total body length 2.46–2.52 mm; length of each forewing 2.10–2.18 mm. General color dark brown (in 80% alcohol) ( Fig. 5A View FIGURE 5 ). Head with three ocelli; dorsally with two pairs of setal warts; ocellar pair closely appressed on midline, each subtriangular; posterolateral pair large, ellipsoid ( Fig. 5B View FIGURE 5 ). Metascutellum subpentagonal ( Fig. 5C View FIGURE 5 ). Wing venation nearly identical to that of O. belodes sp. nov. except that r and r-m crossveins present in forewings and apparent r-m crossvein (actual base of M 1+2) present in hind wings of this species ( Figs 6A, 6B View FIGURE 6 ). Tibial spur formula 0, 3, 4. Abdominal sternum VII with triangular mesoventral process ( Fig. 7B View FIGURE 7 ).

Genitalia. Segment IX, in lateral view, with upper anterolateral margins concave, mesoventrally produced; upper posterolateral margins produced posterad, apically blunt, each side with small, claw-shaped lobe below this process ( Figs 7A View FIGURE 7 1 View FIGURE 1 , 7C View FIGURE 7 ); in dorsal view, with deep U-shaped cleft posteriorly, dorsolateral lobes large, almost as long as tergum X ( Fig. 7E View FIGURE 7 ); in ventral view, subrectangular ( Figs 7G, 7H View FIGURE 7 ). Tergum X in lateral view long, apex obliquely truncate, dorsally sclerotized, mesoventrally membranous ( Fig. 7A View FIGURE 7 1 View FIGURE 1 , 7A View FIGURE 7 2 View FIGURE 2 ); in dorsal view, not divided, with each side of base having obliquely pointed and triangular lateral process, broad sub-hexagonal base ( Fig. 7E View FIGURE 7 ); apex setoff from basal portion, produced on left side and semi-membranous on right side ( Fig. 7E View FIGURE 7 ). Inferior appendages in lateral view ellipsoid; long (2.5× as long as wide), apically round ( Figs 7A View FIGURE 7 1 View FIGURE 1 , 7C View FIGURE 7 ); in dorsal view, surpassing tergum X, each with inner surface bearing numerous long, spine-like setae around apex and on mid-basal ridge ( Fig. 7E View FIGURE 7 ); in ventral view, with row of 3 or 4 long, thicker basal spines on inner margin ( Figs 7G, 7H View FIGURE 7 ). Phallus simple, tubular, elongate, 3.6× longer than inferior appendages, and thread-like ( Figs 7D, 7F View FIGURE 7 ).

Female and immature stages. Unknown.

Distribution. BRAZIL (Amazon: Amazonas State) ( Fig. 1 View FIGURE 1 ).

Etymology. This new species is named in honor of Dr. Joaquín Bueno-Soria (Universidad Nacional Autónoma de México - Mexico) in recognition of his contributions to the knowledge of Neotropical caddisflies, especially to the study of the microcaddisflies.

INPA

Instituto Nacional de Pesquisas da Amazonia

R

Departamento de Geologia, Universidad de Chile

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