Hypoxys runcinatus sp. n.

(Figures 13A–E, 20A–B, 21B)

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Material examined (n=7). Holotype ♂: BRAZIL. Amapá. Rio Amapari, 25.V.60, S. Navio leg. MPEG05022081 (MPEG) . Paratypes: ♀ same data holotype, MPEG05022080 (MPEG); ♂ same data holotype (UFRG); ♀ Serra do Navio, 10.VII.1980, P. Tadeu leg., MPEG 05022256 (MPEG) ; ♀ same data, IX.1957, J. Lane leg. (MZUSP); ♂ (I.C.O.M.I.) [ Indústria e Comércio de Minérios S.A.], II/ IV.1961, J.C.M. Carvalho leg. (MNRJ) ; ♀ Ressurreição, II.1964, J.C.M. Carvalho & Dyuce leg. (MNRJ) .

Measurements. Total length: 15.5–15.8; head length: 1.6–1.7; head width: 3.1; pronotal length: 2.8–3.0; pronotal width: 9.6–9.7; scutellum length: 7.0–7.2; scutellum width: 5.4–6.6; abdominal width: 8.4–8.6; length of antennal segments. I: 1.0; II: 1.6–1.8; III: 1.0–1.1; IV: 4.3; V: missing.

Diagnosis. Anterolateral margin of pronotum without dark stripe. Anterolateral margin scarcely punctured dorsally. Cicatrices of pronotum with brown punctures delimiting anterior sulci (Fig. 20A). Scutellum with anterior margin concolorous (Fig. 20A). Body ventrally with light brown stripes (Fig. 20B). Male genitalia (Fig. 13A–D). Pygophore dorsal rim slightly convex medially (Fig. 13A). Superior process of genital cup rectangular, flat dorsally, thin, ventrally with a conical projection; adjacent to dorsal rim; visible in dorsal view (Fig. 13A–C). Paramere clublike, head almost entirely black; anterior lobe large and truncated; posterior lobe well-developed and rounded; inner face of the stalk with carina evanescent ending at posterior lobe (Fig. 13B–C). Proctiger with dorsolateral tufts of long setae separated by dorsal broad ridge; posterior face pentagonal (Fig. 13A–D). Ventral rim with median excavation wide; expansions acuminated and slightly bent inwards; surpassing level of posterolateral angles in ventral view (Fig. 13D). Female genitalia (Fig. 13E). Valvifers 8 with posterior margin sinuous and sloping, inner angles acuminated and reaching base of valvifers 9; inner margins slightly divergent on distal half, median excavation cup like and broad. Valvulae 8 exposed.

Comments. The H. runcinatus like H. unguiculatus and H. crassimarginatum shows the head of the paramere broad with posterior lobe well-developed and rounded to acuminated, anterior lobe somewhat developed and rounded to truncated (Figs. 13B–C, 16B–C, 4B–C). The H. runcinatus is more related to H. unguiculatus due to the shape of the superior process of the genital cup, but H. runcinatus shows the ventral conical projection of superior process of the genital cup situated anteriorly (mesially in H. unguiculatus); posterior lobe of paramere short and truncate (longer and rounded in H. unguiculatus); and expansions of ventral rim acuminated (rounded in H. unguiculatus) (Figs. 13B–C, 16B–C).

Etymology. Name refers to the plain dorsal surface of superior process of the genital cup ( runcinatus = plane, flattened).

Distribution (Fig. 21B). BRAZIL: Amapá.