Figs 17–18, 57–67, Map 1
Type. Male holotype from Laranjal do Jari (00°50’S 52°30’W), Almeirim, Pará, Brazil, 19.II.2003, J. Barreiros leg. (MPEG 10408, PBI_ OON 40521).
Etymology. The specific name is a noun in apposition taken from the type locality.
Diagnosis. Males resemble those of A. juruti sp. nov. and A. cachimbo sp. nov. by the endites with prolateral process with two retrolateral protrusions (Figs 18, 79, 119), but can be distinguished by the long, sinuous and sclerotized embolus (Figs 64–67).
Description. Male (PBI_ OON 40521, Figs 57–67): Total length 1.51. CEPHALOTHORAX: Carapace dark red-brown, ovoid in dorsal view, anteriorly narrowed to 0.49 times its maximum width or less, with rounded posterolateral corners, surface of elevated portion of pars cephalica granulate; non-marginal pars cephalica setae present, scattered. Eyes: ALE–PLE separated by less than ALE radius, PME touching throughout most of their length, PLE–PME separated by less than PME radius. Sternum orange-brown, furrow wrinkled, surface rugose, covered with small round pits, anterior margin with continuous transverse groove, lateral margin with infra-coxal grooves and anterior and posterior openings; setae evenly scattered. Mouthparts: paturon distal region unmodified. Labium triangular; with 3–5 setae on anterior margin. Endites anteromedian tip with backwards folded ridge, endites distally much more sclerotized as sternum. ABDOMEN: dorsum soft portions white. Posterior spiracles connected by groove. Pedicel tube medium. Dorsal scutum orange-brown, covering full length of abdomen, no soft tissue visible from above, middle surface reticulate, sides reticulate. Postepigastric scutum orange-brown, almost semicircular, covering about 3/4 of abdominal length, with short posteriorly directed lateral apodemes. LEGS: yellow, patella plus tibia I near as long as carapace, metatarsi I and II meso-apical comb absent, coxae orangebrown; darker as legs. GENITALIA: Epigastric region with sperm pore situated between anterior and posterior spiracles. Palp: bulb pale orange, 1 to 1.5 times as long as cymbium, distal part whit small slightly sclerotized hump retro-dorsal to embolus, embolus dark, prolateral excavation absent, as long as cymbium, s-shaped; strongly sclerotized at distal tip; with a dorsal notch around middle-length.
Female: Unknown.
Other Material Examined. None.
Distribution. Known only from the type locality.