Scipopus (Phaeopterina) argentum, Lindsay & Marshall, 2023

Lindsay, Kate & Marshall, Stephen A., 2023, A revision of Scipopus Enderlein including the subgenera Scipopus s. str., Phaeopterina Frey and Parascipopus subgen. nov. (Diptera, Micropezidae, Taeniapterinae), European Journal of Taxonomy 904, pp. 1-189 : 114-117

Scipopus (Phaeopterina) argentum sp. nov.

urn:lsid:zoobank.org:act:94B9CF52-BB10-48EC-A26A-D626F5CD36A2

Fig. 47

Differential diagnosis

Scipopus (Phaeopterina) argentum sp. nov. resembles S. (Ph.) zeta and S. (Ph.) noturgidus sp. nov. in its brown first fore tarsomere, brown infuscate wings, and absence of postocellar setae, but differs by the short clypeus (width 2.0× height), the brown first hind tarsomere and the pale microtrichose spots anterior to the transverse suture.

Etymology

The species name, from the Latin word for ‘silver’ and refers to the broad silvery blue median sheen on the scutum.

Type material examined

Holotype

PERU • 1 ♀; Madre de Dios, Rio Pini Pini & Rio Amalia confluence, nr Manu Natl. Pk.; 17 Apr. 2004; M. von Tschirnhaus leg.; MUSM.

Paratypes

PERU • 1 ♀; Madre de Dios, Tambopata-Candamo ; 20–24 Feb 1994; A.A. Rios leg.; Malaise and Pan traps; UGIC127-15/MYCRO028-15 sequenced for CO1; MUSM • 1 ♂; Madre de Dios, Manu, Rio Manu, Pakitza ; 12°07′ S, 70°58′ W; 250 m a.s.l.; A. Freidberg leg.; MUSM .

Other material examined

BOLIVIA • 1 ♀; La Paz , Heath River Wildlife Centre , ~ 21 km SSW of Puerto Heath; 12°40′ S, 68°42′ W; 29 Apr.–11 May 2007; M.D. Jackson leg.; DEBU .

ECUADOR • 1 ♂; Napo, Res. Ethnica Waorani, 1 km S of Onkone Gare Camp, Trans Ent. ; 00°39′10″ S, 76°26″ W; 220 m a.s.l.; 4 Oct. 1994; T.L. Erwin et al. leg.; insecticidal fogging of mostly bare green leaves, some with covering of lichens or bryophytic plants in terra firme forest [= upland forest]; at trans. 2, stn 5, Project MAXUS, Lot 864; USNM (photographed, Fig. 47A–C ) • 1 ♀; Napo, Tiputini Biodiversity Stn ; 0°36′50″ S, 76°09′01″ W; May 2011; S.A. Marshall leg.; debu00339716/MYCRO572-19 sequenced for CO1–5′; QCAZ • 1 ♂; Napo, Jatun Sacha Res. ; 6 km E of Misahuali; 1°04′ S, 77°37′ W; 450 m a.s.l.; 2 May 2002; M. Buck leg.; debu00177942/MYCRO570-19 sequenced for CO1–5′; QCAZ (dissected and photographed, Fig. 47D ) • 1 ♀; same collection data as for preceding; 30 Apr.–8 May 2002; S.A. Marshall leg.; debu00178908/MYCRO812-20 sequenced for CO1–5′; QCAZ .

PERU • 4 ♀♀; Madre de Dios, Los Amigos Biol. Stn ; 2–14 Jun 2006; Paiero and Klymko leg.; DEBU • 1 ♀; Cusco, Estacion Biológica Villa Carmen ; 12°54′ S. 71°24′ W; 500–700 m a.s.l.; 20 Apr. 2014; trap VC-ML-75; USNM • 1 ♀; same collection data as for preceding; trap VC-ML-09; USNM • 1 ♂; same collection data as for preceding; 8 Jun. 2014; trap VC-ML-40A; USNM • 1 ♀ same collection data as for preceding; 27 Apr. 2014; USNM • 1 ♀; same collection data as for preceding; 20 Jul. 2014; trap VC-ML- 41A; USNM • 1 ♀; same collection data as for preceding; trap VC-ML-49; USNM • 1 ♀; same collection data as for preceding; 22 Jun. 2014; trap VC-ML-84; USNM • 1 ♂; same collection data as for preceding; 31 May 2014; trap VC-ML-77; USNM • 1 ♂, 1 ♀; same collection data as for preceding; 29 Jun. 2014; trap VC-ML-35; USNM • 2 ♀♀; same collection data as for preceding; 19 Jul. 2014; trap VC-ML-42; USNM • 1 ♀; same collection data as for preceding; 8 Jun. 2014; trap VC-ML-09; USNM • 1 ♂, 1 ♀; same collection data as for preceding; 6 Jul 2014; trap VC-ML-30; USNM • 2 ♀♀; same collection data as for preceding; trap VC-ML-40A; USNM (♀ photographed, Fig. 47F ) • 1 ♀; same collection data as for preceding; 27 Apr. 2014; USNM • 2 ♀♀; same collection data as for preceding; trap VC-ML-49; USNM • 2 ♀♀; same collection data as for preceding; 15 Jun. 2014; trap VC-ML-7B; USNM • 1 ♂; same collection data as for preceding; 27 May 2014; trap VC-ML-8B; USNM • 1 ♀; Cusco, Est. Biol. Villa Carmen , oroya, S side; 12.89111° S, 71.41046° W; 527 m a.s.l.; Dec. 2013; Norrbom and Sutton leg.; Malaise trap; USNM • 1 ♂, 1 ♀; same collection data as for preceding; Jan. 2014; M. Choque leg.; USNM (dissected and photographed, Fig. 47E ) • 1 ♀; same collection data as for preceding; 7 Apr. 2014; trap VC-ML-41A; USNM • 1?; same collection data as for preceding; 543 m a.s.l.; 16–26 Nov. 2012; J.K. Alvarez leg.; stream below waterfall, trap VC-ML-19; USNM .

Description

LENGTH. 11–14 mm.

HEAD. Palpus orange, white microtrichose and setulose on entire surface, narrow (length 4.2× width). Clypeus orange, width ~2.2× height, silvery microtrichose on entire surface. Frontal vitta dull, orange, microtrichose. Epicephalon shiny, light brown or orange, white microtrichose posteriorly, wide or narrow, clearly delineated from upper frontal vitta. Postocellar seta absent, one or two pairs of lower fronto-orbital seta; all other head chaetotaxy well-developed.

THORAX. Scutum dark brown with a wide, median silvery-blue sheen, and one pair of indistinct pale silvery-blue spots anterior to transverse suture ( Fig. 47B ). Female cervical sclerite relatively flat. Postpronotal lobe light or dark brown, with several scattered setulae on anterior surface. Notopleuron dark brown, with wide line of silvery microtrichia on ventral margin and outlining anterior notopleural seta. Thorax reddish-brown with blue sheen, entirely silvery microtrichose. Legs dark brown, mid and hind femur pale yellowish-brown on basal ⅛–¼, gradually fading to dark brown apically; first fore and hind tarsomere dark brown with ventral golden fringe. Wing brown infuscate.

ABDOMEN (J+ ♀). T1 with fine, long, white or pale yellow setae.

FEMALE ABDOMEN. T1+2 ~2.3 × length of T3. Posterior margin of T2 1.6× the width of T1. Oviscape dark brown or black, darker apically, white microtrichose on anterior ½, ~3.5 × length of T6. Paired and single spermathecal ducts arising separately from bursa copulatrix (single spermatheca duplicated so the distally bulbous “single” duct terminates in two small, rounded spermathecae with narrow, apical curled projections). Paired spermathecal duct narrow, long (6.0 × length of paired spermathecae), parallel-sided, swollen apically. Paired spermathecal stems narrow, longer than spermathecae, inornate. Paired spermathecae elongate, cup-like, with apical indentation.

MALE ABDOMEN. T1+2 ~2.0× length of T3. T6 short, genital fork 2.8 × as long as T6, with arms converging, inner basal process angled inwards, ¹/5 the length of arm. Epandrium elongate (length 2.0× height), very long setose on posteroventral margin. Basiphallus small, frame-like, with posterior notch. Basal distiphallus long (≈ in length to epandrium), with heavily sclerotized ventral plate, broad, ending in phallic bulb. Phallic bulb elongate (length>3.0 × height), complex, approximately dumbbellshaped. Distal distiphallus absent. Phallapodeme very expanded and broad apically. Hypandrium very broad and expanded anteromedially ( Fig. 47D ).

Distribution

Bolivia, Ecuador, Peru.

Figures

Fig. 47. Scipopus (Phaeopterina) argentum sp. nov. A. Head, ♀, lateral view, Ecuador, non-type (USNM). B. Head and thorax, ♀, dorsal view, Ecuador, non-type (USNM). C. External male terminalia, lateral view, Ecuador, non-type (USNM). D. Internal male terminalia, lateral view, Ecuador, non-type (QCAZ). E. Female spermathecae and associated structures, Peru, non-type (USNM). F. Habitus, ♀, Peru, non-type (USNM). Abbreviations: b = basiphallus; bc = bursa copulatrix; bdp = basal distiphallus; e = epandrium; ea = ejaculatory apodeme; h = hypandrium; pb = phallic bulb; pd = paired spermathecal duct; ps = paired spermatheca; pss = paired spermathecal stems; sd = single spermathecal duct; sp = sperm pump; ss = single spermatheca.