Atopsyche refulioae, Rázuri-Gonzales & Holzenthal, 2025

Atopsyche refulioae sp. nov.

Figs 10 View Figure 10 , 11 View Figure 11

Type material.

Holotype. Peru • 1 ♂; Pasco, Yanachaga-Chemillén NP, Quebrada San Alberto at Refugio El Cedro ; 10.5452°S, 75.3578°W, 2421 m a. s. l.; 27 Aug. 2015; E. Rázuri, L. Figueroa and B. Portuguez leg.; light trap; UMSP 000220104 View Materials ( MUSM) GoogleMaps . Paratypes. Peru • 1 ♂ 2 ♀; same data as the holotype ( MUSM) GoogleMaps • 1 ♂ 2 ♀; same data as the holotype ( UMSP) GoogleMaps .

Diagnosis.

Atopsyche refulioae is related to species included in the A. batesi species group due to the unpaired dorsobasal process of the phallic apparatus. Among these species, A. refulioae is most similar to A. callosa Navás, 1924 ( Colombia, Costa Rica, Ecuador, Panama, Peru, Venezuela), A. majada Ross, 1947 ( Belize, Costa Rica, Guatemala, Honduras, Nicaragua, Mexico, Panama), A. minimajada Blahnik & Gottschalk, 1997 ( Costa Rica), and A. puharcocha Schmid, 1989 ( Bolivia, Ecuador, Peru) based on the shape of segment IX in lateral view and the presence of dorsal process on the phallic apparatus. Atopsyche refulioae can easily be distinguished from these species based on the shape of the first segment of the inferior appendage with the posteroventral corner produced into a point, which is produced into a digitate process of varying length in the other species. Also, the claw-like shape of the parapod in dorsal view (elongate and sinuous in lateral view) sets the new species apart from the other species, which have shorter and wider parapods.

Description.

Adult. Forewing length: male ( 7.25 mm, n = 2). Body pale brown, wings dark brown in the area delimited by the costal vein, the bifurcation of the R 1, the base of the M vein, and the vein that closes the discal cell, and along the apical margin, otherwise pale brown. Forewing with erect setae on veins forming irregular pattern of alternate dark brown and yellow setae, with dark brown setae along costal margin; apex of wing with fringe of brown and yellow setae. Wing venation as in Fig. 10 A, B View Figure 10 . Terga III and IV with oval glands, lined internally with spines (glands on tergum IV are smaller) (Fig. 10 C View Figure 10 ); process on sternum VI longer than its segment, slightly curved, bearing fine setae on its basal half increasing in thickness towards its apex, last few setae very prominent and spine-like; process on sternum VII short, less than half the length of its segment, straight, bare.

Male genitalia (Fig. 11 View Figure 11 ). Segment IX, in lateral view, quadrangular, much higher than long, dorsal margin very short, with setae on posterolateral and ventral surfaces (Fig. 11 A View Figure 11 ). Parapod in lateral view, broad basally, narrow apically, sinuous, mesally with a spinose acute process and a dorsal, rounded projection bearing long setae, apex acute and upturned, bearing three long setae (Fig. 11 A View Figure 11 ); in dorsal view, broad basally with transverse carina, mesal margin concave and lateral margin biconcave, mesal rounded projection, spinose acute process, and acute apex directed laterad (Fig. 11 B View Figure 11 ). Parapod, in lateral view, elongate, sinuous, broader basally, tapering into an acute, upturned apex, mesally with a spinose subacute process and a dorsal rounded projection bearing long setae, with short setae apically (Fig. 11 A View Figure 11 ); in dorsal view, elongate, sinuous, mesal processes directed laterad, most basal process rounded and bearing long setae, process at mid-length acute and bearing spine-like setae, acute apically. Filipod digitate, longer than parapods, with a patch of setae apically (Fig. 11 A View Figure 11 ). Preanal appendage short, rounded, setose (Fig. 11 A View Figure 11 ). First segment of inferior appendage, in lateral view, trapezoidal, ventral margin slightly concave, dorsal margin slightly convex subapically, posteroventral corner produced into a slightly upturned point, with setae on lateral surface and along ventral margin (Fig. 11 A View Figure 11 ); in ventral view, C-shaped, setose, lateral margin convex, mesal margin sinuous (this margin differs between the left and right sides) (Fig. 11 C View Figure 11 ); second segment of inferior appendage, in lateral view, finger-like, narrow at mid-length, slightly inflated apically, setose, dorsal margin convex, ventral margin concave, apex truncate (Fig. 11 A View Figure 11 ); in ventral view, digitate, slightly curved mesad, apex rounded (Fig. 11 C View Figure 11 ). Proctiger, in lateral view, narrow basally, wider apically, with a carina laterodorsally, ventral margin membranous basally, with long setae on apicodorsal corner and along carina, apex truncate (Fig. 11 A View Figure 11 ). Phallic apparatus complex; phallotheca broadly rounded basally, phallic apodeme indiscernible; with ventral process of the phallotheca articulating with inferior appendages; ventrolateral branches of the phallotheca absent, dorsal process of the phallotheca present, single, elongate, bearing short spines apically, apex acute, with ventrolateral flanges fused to ventral process of the phallotheca; posterior section of the phallotheca, in lateral view, same width throughout its length, directed slightly posteroventrad, apex covered with short setae, lateral surface produced into a large flap, produced laterad, apex rounded (Fig. 11 D View Figure 11 ); in dorsal view, with a narrow notch mesally, apex directed posterad (Fig. 11 E View Figure 11 ); phallic spine elongate, stout, with a slight ventral curvature near base, then straight (Fig. 11 D View Figure 11 ); in dorsal view, apex acute (Fig. 11 E View Figure 11 ).

Distribution.

Peru: Pasco Department.

Etymology.

The first author would like to dedicate this new species to Sonia Refulio for her support throughout the years.