2699 Author Brown, Brian V. Author Kung, Giar-Ann text Zootaxa 2010 2010-12-03 2699 1 142 journal article 1175­5334 Dohrniphora acanthiventris sp. n. ( Figs 59–60 , 328 ) Species recognition. This species can be recognized by the combination of an elongate group of peglike setae with a pair of spinelike ventral processes on the hind femur. Description. Body length: 1.84–2.22 mm . Head: Frons dark brown, second row of setae concave. Flagellomere 1 oval, light brown. Palpus of normal size, yellow. Thorax: Scutum light brown. Scutellum dark brown, with setae broken. Pleuron whitish-yellow, except proepisternum and dorsum of anepisternum brown. Mean costal length 0.52 wing length, range 0.51–0.52. Halter yellow. Legs yellowish-brown. Forecoxa in lateral view yellowish-brown. Foretibia with 3–4 dorsal setae. Foretarsomeres 1–3 enlarged, inflated ( Fig. 328 ). Midcoxa brown. Hind coxa whitish-yellow. Hind coxal lobe yellow, short, with short, dorsally-curved ventral process. Posterior face of hind femur with basal, curved, double row of peglike setae; more distally with two sharp spines on ventral margin ( Figs 59–60 ). Abdomen: Abdominal tergite 1 light brown, tergites 2–6 yellow medially and brown laterally, with medial yellow area decreasing in every tergite posteriorly. Venter of abdomen whitish-yellow to gray, with few setae, larger on posterior margin of segment 5. Male terminalia dark brown, except cercus yellow. Distribution. Colombia and French Guiana . Derivation of specific epithet. From Latin for thorny belly, referring to the spiny ventral margin of the hind femur. Holotype . ♂ , FRENCH GUIANA : L’Oyapock : St. Georges de l’Oyapock , 3.88°N , 51.68°W , 7–9.ii.2006 , P. Cerdan , Malaise trap [ LACM ENT 236476 ] ( LACM ). Paratype . COLOMBIA : Amazonas : Amacayacu NP , Matamata , 3.82°S , 70.26°W , 1♂ , 11–24.iv.2000 , A. Feliz , Malaise trap #1, CAP-77 ( LACM ) .