Cremnomymar fidalgoi Triapitsyn 2024, sp. n.
Creators: name: Triapitsyn, Serguei V.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Mymaridae
Cremnomymar
Cremnomymar fidalgoi

description: Cremnomymar fidalgoi Triapitsyn, sp. n.
(Figs 1–14)
? Parapolynema sp.: Huber 2013: 65 (habitus illustration).
Type material. Holotype female [MLPA], on slide labeled as in Fig. 1: ARGENTINA. Neuquén: Parque Nacional Lanín, Pucará, 40°09’59.3’’S 71°37’50.4’’W, 664 m, ca. 100–200 m off S shore of Lago Lácar, 24.ii.2007, S.V. Triapitsyn, G.A. Logarzo, E.G. Virla, yellow pan trap (UCRC ENT 163150). Paratypes: ARGENTINA. Neuquén: Parque Nacional Lanín: Lago Hermoso shore, 40°21’36’’S 71°28’19’’W, 1025 m, 26.ii.2007, S.V. Triapitsyn [1 ♀ on point, UCRC]. Pucará, 40°09’59.3’’S 71°37’50.4’’W, 664 m, ca. 100–200 m off S shore of Lago Lácar, 24.ii.2007, S.V. Triapitsyn [1 male on point, UCRC]. Parque Nacional Nahuel Huapi, Puerto Arrayán, at S shore of Lago Traful, 40°36’57.3’’S 71°32’48.1’’W, 826 m, 26.ii.2007, E.G. Virla, sweeping [1 ♂ on slide, UCRC]. Río Negro: Parque Nacional Nahuel Huapi, Puerto Blest, at Lago Nahuel Huapi shore, 41°01’21’’S 71°49’03’’W, 796 m, 28.ii.2007, S.V. Triapitsyn [1 ♀ on point, UCRC]. CHILE. Araucanía: Parque Nacional Nahuelbuta, 37°49’30’’S 72°58’27’’W, 1170 m, 8–24.ii.2005, UCR Expedition (J.M. Heraty et al.) [1 ♀ on point, UCRC]. Los Lagos: Archipiélago de Chiloé, Isla Grande de Chiloé: “Río Puntra & ruta [route]”, 24.ii.1988, L. Masner, screen sweeping on Nothofagus sp. (Nothofagaceae) [1 ♀ on slide, CNC]. Terao (S of Chonchi), 42°43’01’’S 73°38’47’’W, 96 m, 13.ii.2005, UCR Expedition (J.M. Heraty et al.) [1 ♂ on slide, UCRC]. Parque Nacional Puyehue, Antillanca, crater trail, 40°47’07’’S 72°11’29’’W, 1340 m, 17–18.ii.2005, UCR Expedition (J.M. Heraty et al.), yellow pan trap [1 ♀ on point, UCRC]. Magallanes and Chilean Antarctica: Fuerte Bulnes (30 km S of Punta Arenas), 4.ii.1990, T. Cekalovic [1 ♀ on slide, UCDC].
Diagnosis. In addition to the female characteristics mentioned in the key, C. fidalgoi differs from C. sagittifer, the most similar species, in the male lacking a distinct median carina on the propodeum (males with a distinct such carina in C. sagittifer).
Description. FEMALE (holotype [not photographed prior to slide-mounting]). Body dark brown except petiole brown; scape and pedicel light brown, F1–F5 brown, F6 and clava dark brown; legs light brown to brown (procoxa brown). Head wider than high; face with fine, inconspicuous mesh-like sculpture above toruli (as in Fig. 7). Antenna (Fig. 2) with scape, excluding short radicle (not fused with the rest of scape), 3.4× as long as wide; pedicel longer than any funicle segment and 1.5× as long as wide; F1 the shortest and F2 the longest funicle segments, F6 the widest funicle segment, all funicle segments short, their length to width ratios as follows: F1: 1.7, F2: 2.8; F3: 2.6; F4: 2.0; F5: 1.6; F6: 2.0; F6 without mps; clava 2.4× as long as wide, longer than combined length of the 3 preceding segments, with all mps in apical half. Mesosoma (Fig. 3) about 1.6× as long as wide; pronotum, mesoscutum and scutellum with reticulate mesh-like sculpture; mesoscutum much wider than long, with notauli distinct only anteriorly; scutellum about as long as mesoscutum; propodeum mostly smooth, with median carina almost complete but not touching anterior margin. Fore wing (Fig. 6) 3.5× as long as wide; venation with an apical process about as long as marginal + stigmal vein (Fig. 5); disc with 2 transverse bands beyond venation, the proximal band narrow and the distal one wide, densely setose beyond venation, the majority of discal setae modified; most of fringe setae on anterior margin thickened, the basal ones short and subapical ones long whereas apical ones thin (more or less normal); the longest marginal seta 1.1× greatest width of wing [hind wings lacking in the holotype so are described only for the paratypes]. Metacoxa almost smooth. Petiole (Fig. 4) cylindrical, with wrinkles dorsally. Ovipositor almost 0.8× length of gaster (Fig. 4), not exserted beyond gastral apex, and about 1.0× length of metatibia.
Measurements of the holotype (µm). Mesosoma: 256; petiole: 121; gaster: 303; ovipositor: 233. Scape (excluding radicle): 94; pedicel: 52; F1: 21; F2: 43; F3: 30; F4: 28; F5: 24; F6: 37; clava: 118. Fore wing: 750:215; longest marginal seta: 242.
Variation (paratypes). Body length (dry-mounted specimens, as in Fig. 8) 660–730 µm. In slide-mounted specimens, scape, excluding radicle, 3.6–4.1× as long as wide; fore wing 3.2–3.6× as long as wide, the longest marginal seta 0.9–1.15× greatest width of fore wing; hind wing (Fig. 9) 40–43× as long as wide, with disc slightly infumate apically and mostly bare except for admarginal rows of microtrichia, the longest marginal seta 8.7–11.0× greatest width of wing; and ovipositor 0.9–1.0× length of metatibia.
MALE (paratypes). Body length (dry-mounted specimen, Fig. 11) 610 µm. Similar to female in color except scape and pedicel light brown, and flagellum uniformly brown. Antenna (Fig. 10) with scape, excluding radicle, 2.7× long as wide, F1 the shortest flagellomere. Fore wing (Fig. 14) 3.9–4.0× as long as wide; the longest marginal seta 1.2–1.3× greatest width of wing; hind wing (Fig. 14) 32–34× as long as wide. Propodeum (Fig. 12) without a median carina. Genitalia (Fig. 13) 106–109 µm long.
Distribution. Argentina and Chile. A dry-mounted female deposited in CNC, whose habitus in lateral view was illustrated in Huber (2013, p. 65, fig. 19), is likely to belong to C. fidalgoi as it has a reticulate scutellum and a narrow proximal dark, transverse band on the fore wing. It was collected at 3200 m in Sorata environs, La Paz, Bolivia (Huber 2013).
Etymology. This species is named in honor of the late Patricio Fidalgo, fellow fairyfly taxonomist and friend, who is fondly remembered as a very generous and kind person.
description: Published as part of Triapitsyn, Serguei V., 2024, Review of Cremnomymar species (Hymenoptera: Mymaridae) in mainland South America, with a new generic synonymy, pp. 25-46 in Zootaxa 5463 (1) on pages 28-29, DOI: 10.11646/zootaxa.5463.1.2, http://zenodo.org/record/11610052