Buenoa tumaquensis, Padilla-Gil, Dora N., 2010

Padilla-Gil, Dora N., 2010, Five new species of Buenoa (Hemiptera: Heteroptera: Notonectidae) from Colombia, Zootaxa 2411, pp. 22-32 : 22-24

Buenoa tumaquensis sp. n.

Type material. HOLOTYPE, braq ♂, allotype braq ♀ : 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: 1 macr ♀ ( PSO-CZ); 1 macr ♂, 1 macr ♀ ( CP). Description. Brachypterous form. Dimensions. Length M 7.2, F 6.8; greatest body width M 2.0; F 18. Macropterous form, F, length 7.8, greatest body width 1.8.

Color. Overall body bright white, with dark eyes. Mesothorax with two anterolateral brown areas. Abdominal venter black except keel and portions of connexivum white; abdominal dorsum white with irregular areas of black, and yellow apex. Female differs from male, with yellowish connexivum and abdominal dorsum.

Male structural characteristics: viewed from above, outline of head rounded with anterior margin of vertex continuous with that of eyes; greatest width of head approximately five times anterior width of vertex and less than humeral width of pronotum; synthlipsis approximately two-thirds of anterior width of vertex; along median longitudinal axis, head is as long as pronotum; tylus inflated, and glabrous; labrum’s width wider than its length, and a tuft of hairs; rostral prong ( Fig. 1 a) longer than third rostral segment, with base originating laterally and protruding anteriorly at distal end of third rostral segment, apex rounded. Pronotum humeral width approximately twice its median length (1.06/2.13), and with lateral margins parallel. Scutellum short, pronotum with median length 1.3 times median length of scutellum. Fore femur wide and somewhat thickened at apex; stridulatory area consisting of approximately 15–17 sclerotized ridges ( Fig. 1 b); perpendiculars to comb, five parallel striae visible. Fore tibia with stridulatory comb consisting of approximately 50 teeth ( Fig. 1 c), with 15 basal and irregular teeth in size. Male genital claspers normal. Spine from caudo-sinistral margin, narrow and with apex strongly acuminate.

Female structural characteristics: synthlipsis slightly smaller than two thirds anterior width of vertex; tylus inflated. Tylus and labrum without tuft of hairs found in male. Hind femur with 16 spines along the posterior margin.

Etymology: the name “ tumaquensis ” refers to the Colombian municipality of Tumaco (Nariño), from which the samples for this type were collected.

Comparative notes: Superficially this species resembles B. platycnemis (Fieber) , but differs in the number of combs of the stridulatory area found in the fore femur (11–14 in B. platycnemis ) and the number and shape of the stridulatory comb of the fore tibia (30–35 in B. platycnemis ).

Figures

FIGURE 1. Buenoa tumaquensis sp. n., male. 1 a Rostrum in lateral view; 1 b Fore leg; 1 c Tibial comb (100 X)