Buenoa anomala sp. n. Type material. HOLOTYPE, macr ♂, allotype macr ♀: COLOMBIA, Nariño, Tumaco, Finca Mar Agrícola, Universidad de Nariño, 0–3 m, 3 October 2007, leg. D. Padilla, (ICN). PARATYPES, same data as holotype, of these the following have been distributed: 3 macr ♀ (PSO-CZ), 1 macr ♂, 1 macr ♀ (CP). Macropterous form. Dimensions. Length M 7.7–8.1, F 7.3–8.1 greatest body width M 2.0, F 2.0. Color. General body bright white, dark eyes. Mesothorax with two anterolateral brown areas. Abdominal venter black except for keel and portions of connexivum, these white; abdominal dorsum white with irregular areas of black, and yellow apex. Female differing from male, with yellowish connexivum and abdominal dorsum. Male structural characteristics (based on the macropterous form): As viewed from above, outline of head rounded and anterior margin of vertex slightly indented; greatest width of head approximately five times the anterior width of vertex (1.73/0.33) and slightly wider than humeral width of pronotum; synthlipsis very narrow, 2.5 times smaller than anterior width of vertex (0.13/0.33); along median longitudinal axis, head as long as pronotum; tylus slightly inflated, and glabrous. Labrum is wider than long, with a tuft of setae; rostral prong (Fig. 2 a) longer than third rostral segment, its base originating at proximal end of third rostral segment, and with rounded apex. Pronotum tricarinate; lateral margins parallel; median width of pronotum 1.7 times its length. Scutellum short, pronotum with median length of 1.3 times median length of scutellum. Fore femur wide, narrowed slightly at the apex; square stridulatory area with 5 sclerotized ridges and a smaller one (Fig. 2 b); fore tibia with stridulatory comb consisting of approximately 35 teeth with irregular disposition (Fig. 2 c). In male, genital claspers normal. Spine from caudo-sinistral margin, long and narrow apically. Female structural characteristics: tylus slightly inflated, and lacking short setae; labrum also lacking tuft of setae; labrum also lacking tuft of setae and hind femur displaying 32 spines along its posterior margin. Etymology: Anomalous. A Greek adjective meaning “irregular,” referring to the irregular disposition of the comb of the fore tibia. Comparative notes: B. anomala is characterized by a square area of the fore femur with 5 + 1 sclerotized ridges, and with the fore tibia having a stridulatory comb of 35 teeth with irregular disposition (Fig. 2 c).

Published as part of Padilla-Gil, Dora N., 2010, Five new species of Buenoa (Hemiptera: Heteroptera: Notonectidae) from Colombia, pp. 22-32 in Zootaxa 2411 on page 24, DOI: 10.5281/zenodo.293945