Pseudoculio barclayi Pelsue & O'Brien, sp. n.
Creators: name: Pelsue, Frank W.
name: O'Brien, Charles W.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Curculionidae
Pseudoculio
Pseudoculio barclayi

description: Pseudoculio barclayi Pelsue & O’Brien sp. n.
Material examined: Holotype—Ceylon (Sri Lanka) Ƥ Ceylon /Haeifayo/1963/D. Calnido. (BMNH)
Description: Habitus (Figs. 23–24) Ƥ 2.9 mm (n=1) in length; 1.6 mm (n=1) in width. Head: 0.7 as broad as pronotum in frontal view; glabrous; gena with small white scales; punctures numerous, discrete; frons 0.22 as broad as head across eyes; clothed with small, narrow, decumbent, white scales. Rostrum: 1.8 mm in length; 0.62 as long as body; derm fuscous; cylindrical (tube-like); abruptly emerging from frons; straight to distal 3/4, there deflexed to apex; punctures very small; scrobe lateral; scape inserted in basal 1/3. Antennae: Scape 0.6 mm, funicle 0.9 mm in length; scape 0.66 as long as funicle; antennomere 1 twice as long as 2, 3–4 equal, 5 not as long as 6, 7 as long as 6; club 0.25 mm, as long as 5–7; derm testaceous. Thorax: 1.1 mm in length 1.3 mm in width; 0.87 as long as broad; anterobasal margin emarginate, base of disc almost as broad as base of elytra: punctures small with narrow margins, hexagonal in shape with small narrow elongate fuscous scales; laterobasal margin with narrow macula of clavate, apically truncate, recumbent, cretaceous scales; mesosternal intercoxal process not visible; scutellum not as long as wide, clothed with small narrow cretaceous scales; mesepimeron, mesepisternum, and metepisternum densely clothed with broad, clavate, cretaceous scales; metasternum discretely clothed with similar scales. Elytra: Striae deep, punctures large with broad clavate white scales; basal margin with short vittae on intervals 1–4 longest on 1 and gradually becoming shorter to interval 4; intervals broad, twice as broad as striae, with 3 short clavate fuscous scales in transverse rows; just past middle with broad fascia of clavate, decumbent, apically truncate white scales; in apical 1/5 crosshatched setae short, suberect, white. Legs: Pro-, meso-, and metafemoral teeth small; derm fuscous; clothed with narrow, elongate, decumbent, white scales; tibiae subsinuate, pro-, and mesouncus small, no metauncus; tarsal claws with long, narrow, outer teeth and shorter, rounded, inner teeth. Abdomen: Sternum I longer than II behind coxal cavity; sterna I–II fused medially, suture visible only laterally; sternum II ascending to III; III longer than IV; III–IV together as long as V; V with apex truncate, with shallow apical declivity; sterna I–II clothed with larger, clavate, cretaceous scales; sterna III–V with shorter, narrow, clavate, cretaceous scales. Pygidium: Visible, small, densely clothed with short, narrow, elongate, cretaceous seta-like scales. Genitalia: Not dissected.
Differential diagnosis: This species stands alone from the other species in this group, but could be confused with two other species in the Curculionina with similar scale patterns e.g. Curculio grypus (Marshall), and Curculio pusio (Marshall).
Specific epithet: Named in honor of Maxwell Barclay curator of Coleoptera in the Entomology Department of The Natural History Museum London.
description: Published as part of Pelsue, Frank W. & O'Brien, Charles W., 2011, A redefinition of the Curculionini of the world, with a key to subtribes and genera, and two new genera: Pseudoculio and Megaoculis (Coleoptera: Curculionidae: Curculioninae), pp. 27-49 in Zootaxa 3102 on page 35, DOI: 10.5281/zenodo.203409