Labrundinia belizensis Namayandeh & Vasquez, 2026, sp. nov.

Labrundinia belizensis sp. nov. Fig. 3 Type material. Holotype, • 1 male; Belize: Guanacaste National Park, Belize River; 17.262083, -88.788134; leg. A. A. Vasquez; dep. ARC. Paratypes, • 2 males, same as holotype. Diagnostic characters. The adult male of Labrundinia belizensis sp. nov. differs from related species by the combination of the following characters: Abdominal tergite I with a faintly greyish-brown mid tergite patch, tergite II with a darker and smaller mid-tergite patch; posterior 2 / 3 rd of tergite III with transverse brown band; posterior 1 / 3 rd of tergite IV with transverse brown band; tergites V – IX and hypopygium brown; AR 0.89–0.91; eye ratio 1.2–1.4; acrostichals 26; transverse sternapodeme without anterior process. Description. Male (n = 3; unless otherwise stated). Total length 1.79–2.08, 1.90 mm. Wing length 1.20–1.27, 1.24 mm. Total length / wing length 1.40–1.53, 1.47. Wing length / profemur length 4.08–4.77, 4.43. Coloration. Head, thorax brown. Abdominal tergite I with a faintly greyish-brown mid-tergite patch, tergite II with a darker and smaller mid-tergite patch; posterior 2 / 3 rd of tergite III with a transverse brown band; posterior 1 / 3 rd of tergite IV with a transverse brown band; tergites and sternites V – IX and hypopygium brown (Fig. 3 A). Sternites I – III light. Wings greyish brown. Halteres light. Femurs of all legs brown; tibia of all legs with anterior and posterior brown bands. Head (Fig. 3 B, C). Antenna last flagellomere 258–271, 265 μm long; apical nipple with numerous short microtrichia and 6 sensilla chaetica (Fig. 3 B); AR 0.89–0.91, 0.90 (n = 2); subapical setae missing. Temporal setae 12, including 2 outer verticals and 6 inner verticals, horizontally uniserial, and 4 postorbitals, vertically uniserial (Fig. 3 B). Eye ratio 1.2–1.4 (2). Tentorium 103–133, 119 μm long. Clypeus 75–92, 84 μm long and 52–64, 60 μm wide (at widest section), bearing 9–15, 12 setae. Cibarial pump 179–180 μm long. Palpomeres 4 and 5 missing in all specimens examined; lengths of palpomeres 1–3 (in μm): 38–41, 40; 37–44, 41; 101–111, 106. Thorax (Fig. 3 D). Acrostichals 30–34, 32, biserial, starting close to antepronotum reaching near scutellum; dorsocentrals 10–13, 12, irregularly uniserial; prealars 7, stretching close to parapsidal suture; supraalars 2; scutellars 8, uniserial. Antepronotal lobe with 5 basolateral setae. Wing (Fig. 3 E). Anal lobe reduced. Costal 1.0– 1.07 mm long. Distance from vein r-m to arculus 447–466, 456 μm long; R with 24–30, 27 setae; R 1 with 19–27, 23 setae; R 4 + 5 with 52–64, 58 setae. Brachiolum with 3–4 setae. Squama with 8 setae. VR 0.66–0.69, 0.67. Legs (Fig. 3 F, G). All tarsal segments missing. For and mid tibia spurs small, with 2 minute inner teeth, 16–20, 18 μm long. Hind tibia spur absent; comb with 7 spines and several dorsolateral long bristles. Fore to hind tibia width (in μm) at apex as follows: 27–30, 29; 24–27, 25; 34–35. Lengths and proportions of leg segments as in Table 1. Hypopygium (Fig. 3 H). Tergite IX with 10–12 anterior setae. Membranous anal point dome-shaped, 27 μm long. Transverse sternapodeme 34–52, 42 μm long, without anterior process. Phallapodeme 51–52 μm long. Gonocoxite 85–103, 92 μm long. GcR 2.0–2.2. Gonostylus narrowing apically, 50–57, 54 μm long; megaseta 10–13, 11 μm long. HR 1.56–1.80, 1.69. HV 3.17–3.70, 3.51. Etymology. The new species is named after the country of Belize, where it was collected. The suffix - ensis is Latin, and it denotes belonging to a location. Remarks. The coloration of the abdominal tergite of the new species resembles that of Labrundinia costaricae Silva, 2014, Labrundinia johannseni Beck & Beck, 1966, and Labrundinia neopilosella Beck & Beck, 1966. The pattern of the brown bands of the new species differs on tergites I and II from that of the latter species. The new species also differs from the three related species by a higher eye ratio, a lower number of acrostichals, and a complete lack of the anterior process of the sternapodeme. It also differs from L. johannseni and L. neopilosella by a lower AR, and it differs from L. neopilosella by having an anal point without a notch (see da Silva et al. 2014).