Pseudoculio vittatus 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 vittatus

description: Pseudoculio vittatus Pelsue & O’Brien sp. n.
Material examined: Holotype—Java 3 Java/Mts. Djampang/Museum Paris/ex {Coll. R. Oberthür/1952] (MNHN) Paratypes—(4) 2 3 Java/Goen Halimoen/1937] [Museum Paris/ex Coll. R. Oberthür 1 (MNHN) 1 (FWPC) 2 Ƥ Goen Halimoen/1937] [Museum Paris/ex Coll R. Oberthür 1 (MNHN) 1 (FWPC).
Description: Habitus (Figs. 31–32) 3 2.5–3.2 mm (mean= 2.9 mm, n=3) in length; 1.2–1.7 mm (mean= 1.4 mm, n=3) in width. Head: 0.6 as wide as pronotum; small punctures, glabrous; gena with few, very small, narrow, recumbent, white scales; eyes subcircular; frons 0.25 as wide as head across eyes; few, narrow, elongate, decumbent, testaceous scales along margin of eye. Rostrum: 2.3 mm in length; 0.7 as long as body; derm fuscous;, basal median carinae reaching from base to almost reaching insertion of scape, flanked by numerous small punctures; straight to insertion of scape there evenly deflexed to apex; scrobe ventral; scape inserted just anterior to midpoint. Antennae: Scape 1.1 mm, funicle 1.1 mm, club 0.45 mm in length; scape as long as funicle; antennomeres 1 and 2 subequal, 3–5 equal in length (each much shorter than 1 or 2), 6 as long as 7, longer than 3–5; 7 as long as antennomere 1 of club; club oval-acuminate, as long as funicular antennomeres 4–7. Thorax: 1.0 mm in length, 1.3 mm in width; 0.77 as long as wide; derm fuscorufous; disc with numerous punctures appearing somewhat reticulate, with small narrow elongate decumbent testaceous scales, side margins rounded from base to constriction; median vitta of clavate, apically acute, tawny scales, and basolateral patch of 2–3 tawny scales; anteromedian macula of clavate, recumbent, white scales; scutellum as long as wide, densely clothed with tawny scales; mesosternal intercoxal process not visible; mesepimeron and mesepisternum densely clothed with clavate, ochroleucous scales; metepisternum with anterior macula extending into posterior base of metasternum, of clavate ochroleucous scales; metasternum with small, narrow, elongate, confused, discrete, ochroleucous scales emerging from deep punctures. Elytra: Derm fuscorufous; striae moderately deep, with small punctures, and small, narrow, testaceous scales; humeri prominent, rounded; with shallow postscutellar impression; intervals narrow with rounded crown; very small, elongate scales along margins of intervals; interval 1 with median vittae of densely packed clavate, ochroleucous scales ending at declivity, there clothed with testaceous crosshatched setae. Legs: Pro-, and mesofemoral teeth small, metafemoral tooth medium-sized; clothed with discrete, small, narrow, elongate, recumbent, testaceous scales; tibiae subsinuate, pro-, and mesouncus large; metatibiae with very long inner bifid process extending downward almost as long as tarsomere 1 (Fig. 29); metafemur with small node on dorsal surface of clava appearing apically acute; metafemur exceeding apex of elytra by 1/2 length of femur. Abdomen: Sternum I longer than II behind coxal cavity and medially declivous; sternum II ascending to III with posterior lateral margin extending over anterior lateral margin of III; III+IV together not as long as V; V apically truncate; sternum II with lateral macula of dense, clavate, ochroleucous scales; all other scales small, narrow, elongate, and white; side margins of V with few, clavate, tawny scales. Pygidium: Large, outwardly rounded; clothed with short, clavate, tawny scales. Male genitalia: Median lobe 0.75 mm long, 0.20 mm wide; base broad, then narrowing slightly and expanding evenly to apex, apex of endophallus dark and rounded; in lateral view, sides narrow basally, widening after deflexion, then narrowing to apex giving humped appearance; apodeme 1.0 mm long (Figs. 51–52). Female: 3.2–3.4 mm (mean=3.3, n=2) in length; 1.4 mm (mean=1.4, n=2) in width. Rostrum: 3.3 mm in length. Thorax: 1.0 mm in length; 1.2 mm in width. Female genitalia: Not dissected.
Differential diagnosis: This species is very similar to P. discreticoxis and P. confusicoxis in size and scale pattern. The male of this species and P. discreticoxis have the projecting, bifid, metatibial, hook-like process, and similar median lobes; but P. vittatus has the median vittae on the dorsum of the thorax and elytra extending from the anterior margin of the thorax to near the apex of the elytra.
Specific epithet: The specific epithet “ vittatus ” is taken from the Latin “ vitta ” meaning “longitudinal stripe.” 21 22 Figs. 21–22 —Habitus of Ƥ Pseudoculio promissus sp.n. 21) dorsal aspect 22) lateral aspect.
Figs. 23–24 —Habitus Ƥ Pseudoculio barclayi sp.n. 23) dorsal aspect 24) lateral aspect.
Figs. 25–26 —Habitus 3 Pseudoculio discreticoxis (Marshall) comb.n. 25) dorsal aspect 26) lateral aspect. Figs. 27–28— Habitus 3 Pseudoculio confusicoxis sp.n. 27) dorsal aspect 28) lateral aspect.
30 36 Fig 29 —Arrow indicating bifid hook-like process of 3 P. discreticoxis, P.vittatus metatibia. Fig. 30 —Arrow indicating blade-shaped hook-like process of 3 P. confusicoxis sp.n. metatibia. Figs. 31–32— Habitus 3 Pseudoculio vittatus sp.n. 31) dorsal aspect 32) lateral aspect.
Figs. 33–34— Habitus 3 Pseudoculio crinitus sp.n. 31) dorsal aspect 32) lateral aspect.
Figs. 35–36 —Habitus 3 Pseudoculio spiesi sp. n. 35) dorsal aspect 36) lateral aspect.
38 44 Figs. 37–38 —Habitus of Ƥ P. discreticoxis comb.n. 37) dorsal aspect 38) lateral aspect. Figs. 39–40 —Habitus of Ƥ P. confusicoxis sp.n. 39) dorsal aspect 40) lateral aspect. Figs. 41–42 —Habitus of Ƥ P. vittatus sp.n. 41) dorsal aspect 42) lateral aspect. Figs. 43–44 —Habitus of Ƥ P. spiesi 43) dorsal aspect 44) lateral aspect.
Figs. 45–46 —Habitus of Ƥ P. crinitus 45) dorsal aspect 46) lateral aspect.
57 58 Fig. 47–48 —Aedeagus and tegmen of P. discreticoxis 44) dorsal aspect 45) lateral aspect. Figs. 49–50— Aedeagus and tegmen of P. confusicoxis 49) dorsal aspect 50) lateral aspect. Figs. 51–52 —Aedeagus and tegminal apodeme of P. v i tt a t u s 48) dorsal aspect 49) lateral aspect. Figs. 53–54 —Aedeagus of P. spiesi 53) dorsal aspect 54) lateral aspect.
Figs. 55–56— Aedeagus of P. crinitus 55) dorsal aspect 56) lateral aspect.
Fig. 57 —Spermatheca of P. discreticoxis lateral aspect.
Fig. 58— Spermatheca of P. confusicoxis lateral aspect.
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 pages 40-44, DOI: 10.5281/zenodo.203409