Panscopus (Parapanscopus) ovatipennis Buchanan, 1936

Spanton, Timothy G. & Anderson, Robert S., 2016, A Taxonomic Revision of Weevils of the Genus Panscopus Schönherr (Coleoptera: Curculionidae: Entiminae: Tropiphorini), The Coleopterists Bulletin (mo 15) 70, pp. 1-86 : 13-14

Panscopus (Parapanscopus) ovatipennis Buchanan, 1936

( Figs. 2 , 28 , 53 , 74 , Map 2 )

Panscopus (Parapanscopus) ovatipennis Buchanan 1936: 6 . Blackwelder 1939: 66; Bousquet et al. 2013: 345.

Panscopus ovatipennis ; O’ Brien and Wibmer 1982: 63; Bright and Bouchard 2008: 262.

Panscopus (Parapanscopus) ovatipennis verrucosus Buchanan 1936: 7 .

Panscopus ovatipennis verrucosus ; Blackwelder 1939: 66; O’ Brien and Wibmer 1982: 63.

Type Material. Holotype of P. ovatipennis

( USNM Type No. 50646): “Hamilton, Canada ”

(no date or collector indicated); holotype of P. ovatipennis verrucosus : “Rockville Pa[rk]. 30-III-1909, Coll. by Kirk and Champlain” ( USNM Type No. 50832) .

Notes about Synonymy. Buchanan (1936) described P. ovatipennis verrucosus based on specimens in which the pronotal tubercles are slightly more isolated and the intermediate segments of the funicle are slightly shorter. This variation is within that found among specimens of P. ovatipennis .

Specific Epithet. “Ovatis” is a Latin adjective, meaning egg-shaped; “pennis”, also a Latin adjective, is derived from “penna”, meaning feather, wing, arrow, or pen. This is probably in reference to the oval or egg-shaped elytra.

Diagnosis. A pair of setae on the ventral surface of the prementum, situated near the anterior margin, distinguishes specimens of P. maculosus and P. ovatipennis from other species of Panscopus . Panscopus ovatipennis is distinguished by the vestiture of setae and broad scales on the scape, nearly concealing the integument (especially apically), and pronotal tubercles shaped as round or polygonal raised areas, each with a ring of scales and a seta in the middle.

Redescription. Females: Length 6.1 mm; width 2.9–3.1 mm (n = 2). Males: Length 4.4–5.1 mm; width 1.7–2.2 mm (n = 2). Head: Broad, transverse depression between eyes, frons and rostrum apparently discontinuous in lateral view; frons with dark pit, or short narrow, longitudinal sulcus medially, between eyes; rostrum with broad, pronounced median longitudinal carina dorsally and with lower, less pronounced lateral longitudinal carinae, one on each side; angular nasal plate indistinct, merging with punctate region near apex of rostrum, head and rostrum with dense, appressed scales and 2 indistinct rows of semi-erect setae each side of middle, supraorbital setae scattered, not in form of dense clump above eye. Antennae: Scape clothed from near base to apex with thin, decumbent setae and appressed scales, scales seta-like and sparse basally, broader, more scalelike setae nearly hiding integument near apex; antennomeres 2–8 elongate, antennomere 8 obviously longer than broad. Pronotum: Wider than long, widest at about middle, broader posteriorly than anteriorly, without median longitudinal sulcus, dorsally with numerous polygonal raised areas, each distinctly separated and with a ring of 5–8 flat, appressed scales surrounding a central seta-bearing puncture. Elytra: Lateral margins gradually convergent from middle toward apex; apical declivity, in lateral view, straight near apex and reflexed in female, not so in male; intervals subequally slightly convex, 3 and 5 slightly elevated near basal margin, each interval with a single row of thin, semi-erect setae; surface vestiture of dense, flat, appressed scales covering integument, in irregular pattern of pale tan, cupreous, and brown, surface mottled. Legs: Femora longer than wide, together wider than tibia 1, with few small denticles on ventro-lateral margin apically; femora and tibiae with dense vestiture of flat scales, nearly obscuring integument, and sparse decumbent setae; tibia 3 with corbellar area closed, enclosed area glabrous. Abdomen: With 5 ventrites in males and females; vestiture of densely spaced, appressed, overlapping scales nearly hiding integument; in females, ventrites 1 and 2 convex at middle; in males, ventrite 1 concave at middle, ventrite 2 nearly flat or with slight concavity, ventrite 5 deeply impressed medially. Genitalia: Females ( Figs. 2 , 28 ): tergum VIII broadly convex dorsally, somewhat conical in shape and angled toward rounded apex; sternum VIII (spiculum ventrale) with apical expansion broadly spade-shaped, convex ventrally, rounded at apices, cleft medially in apical portion, with fine setae apically; coxites 1 and 2 broadly angular in dorsal view, rounded at apex in lateral view, styli with 3 or 4 setae apically, vagina shorter than coxites, membranous, without sclerites internally; spermatheca sickle-shaped, broad, and tubular in crosssection, pointed at apex, with fine rugae laterally in inside of curve. Males ( Figs. 53 , 74 ): aedeagus with median lobe decurved, concave ventrally; apex broadly rounded in dorsal and ventral views, manubrium of tegmen slightly longer than median lobe; median struts of aedeagus 2/3 longer than median lobe, internal sac membranous with sclerites comprised of median flagellum-like structure curved ventrally and pair of lateral lobes, loosely connected to base of flagellum, located apically in sac (anteriorly, in un-everted sac); apical portion of spiculum gastrale with tubular, sclerotized structure projecting apically.

Life History. The few adults known were collected in the months of March, May, and June.

Plant Associations. No plant information is available regarding this species.

Geographical Distribution. This species is known from eastern North America , from southern Ontario (holotype) southward to southern North Carolina. It occurs in MD, NC, ON, VA, and WV ( Map 2 ) .

Chorological Affinities. The ranges of this species and P. maculosus are adjacent but non-overlapping.

Material Examined. In addition to the two holotypes, 10 specimens were examined. USA: Maryland: Bear Island, W. of DC, C&O Canal , 6.VI.1971, G. F. Hevel (1, USNM) . North Carolina: Cherokee Co., Hiwassee Dam , 20-23.V.1961 (1, CWOB) . Virginia: Montgomery Co., Blacksburg , 25.V.1947, C.L. Perkins (1, CMNC) . Wise Co., High Knob Recreation Area , 36.89721 −82.61666 ,

1231m, 11.IV.2016, R.S. Anderson, hardwood litter, 2016-027 (1, CMNC) . West Virginia: Fayette Co., Clifftop, Babcock State Park , 14.V- 21.VIII.1983, S.&J. Peck (2, CMNC) ; Beauty Mountain, near Edmond , 25.V.-8.VI.1989, R. Canterbury, pitfall trap (1, CMNC) ; 10-22.VI.1989, R. Canterbury, pitfall trap (1, CMNC) ; 23.VI.-13. VII.1989, R. Canterbury, pitfall trap (1, CMNC) ; 1 mi. S.E. Lansing, 1.X.1989, K.A. Buhlman, pitfall trap (1, CMNC) .

Figures

Map 2. Geographical distribution of Panscopus ovatipennis.

Figs. 1–8. Panscopus species, sternum 8 (spiculum ventrale), ventral (a) and left lateral (b) views. 1) P. maculosus; 2) P. ovatipennis; 3) P. alternatus; 4) P. erinaceus; 5) P. impressus; 6) P. costatus; 7) P. capizzii; 8) P. convergens. Scale bar = 1 mm.

Figs. 27–32. Panscopus species, coxites and vagina, dorsal (a), ventral (b), and left lateral (c) views. 27) P.maculosus; 28) P. ovatipennis; 29) P. alternatus; 30) P. erinaceus; 31) P. impressus; 32) P. costatus. cx = coxites; st = stylus. Scale bar = 1 mm.

Figs. 53–55. Panscopus species, aedeagus, dorsal (a), ventral (b), and left lateral (c) views. 53) P. ovatipennis; 54) P. alternatus; 55) P. impressus. b = belt of tegmen; is = internal sac; mb = manubrium of tegmen; ml = median lobe; ms = median strut; t = tegmen. Scale bar = 1 mm.

Figs. 74–76. Panscopus species. 74) P. ovatipennis: a) Dorsal view of tergum 7 (t7), pygidium (pg), and apex of apical tubular structure (at), b) Ventral and c) Lateral views of spiculum gastrale (sg), pygidium, and apical tubular structure; 75) P. gemmatus: a) Dorsal view of pygidium, b) Ventral view of spiculum gastrale and pygidium; 76) P.abruptus: a) Lateral and b) Ventral views of spiculum gastrale and pygidium. Scale bar = 1mm.