Cladiopsocus amacayacuensis n. sp. Male

(Figs 1–7)

Diagnosis. Belonging in species group “1”, in the classification of Eertmoed (1986). Epiproct posteriorly concave. Unlike C. pacificus, C. bidentatus, C. roesleri, C. interruptus and C. mockfordi, presents a short, stout paraproctal prong, blunt ended, and a rounded process between the prong and the mesal tubercle (Fig. 5).

Color. Head (Fig. 3) brown, anteclypeus and labrum pale brown. Compound eyes dark brown, ocelli hyaline, with ochre centripetal crescents. Antennae pale brown, flagellomeres with clear distal ends; maxillary palps pale brown. Meso- and metanotum brown, thoracic pleura pale brown, legs creamy. Forewing membrane hyaline; pterostigma smoked-brown distally, proximally clear; wing margin with pale brown spots between the ends of R2+3, R4+5, M1-M2, M2-M3 veins, and areola postica (Fig. 1); veins pale brown, with brown spot on distal ends. Hindwing hyaline with a smoked spot at vein ends, and two-three spots at wing margin, between M and Cu1 (Fig. 2). Abdomen light brown, with subcuticular pale ochre bands; clunium, hypandrium and phallosome pale brown; epiproct cream proximally, more pigmented distally; paraprocts pale brown, paraproctal prong dark brown, distally more pigmented.

Morphology. As in diagnosis plus the following: head vertex slightly concave in the middle (Fig. 3). Compound eyes large, D is 56% the length of the head in front view; interommatidial setae present. Forewings (Fig. 1), membrane of pterostigma with setae; areola postica wide, apex rounded. Hypandrium (Fig. 6) broad, anteriorly concave and distally rounded, with setae as illustrated. Epiproct wide, posteriorly concave; posterolateral corners rounded, setae as illustrated (Fig. 4). Paraprocts (Fig. 5) with well-developed mesal tubercle, with abundant mid sized setae and macrosetae; short, stout paraproctal prong, blunt ended, striated; sensory fields with 18 trichobothria on basal rosettes. Phallosome piriform, slightly sclerotized, with two small anterior lobes and a small obtuse concavity posteriorly in the middle; external parameres slender, elongate, bearing pores; endophallic lobes broad, coalescing along the longitudinal midline; aedeagal arch absent (Fig. 7).

Measurements. FW: 2450, HW: 1830, f1: 450, f2: 335, f3: 290, Mx4: 157, IO: 220, D: 332, d: 220, IO/d: 1.0, PO: 0.66.

Specimen studied. Holotype male. COLOMBIA. Amazonas, Leticia, San Martín de Amacayacu. Maloca trail, 3º43’43.8”S: 70º18’49.9”W, 93 m. 14–15.VIII.2015. MUSENUV slide code 26134, N. Carrejo & R. Gregorio. Led light trap on forest canopy.

Etymology. The specific name refers to the National Natural Park Amacayacu (Leticia, Amazonas), where this species was found.