Scipopus (Scipopus) planus, 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 : 74-77

Scipopus (Scipopus) planus sp. nov.

urn:lsid:zoobank.org:act:596FA239-FF99-4BF7-BBAA-617A15584416

Figs 6A , 29–30

Differential diagnosis

Scipopus planus sp. nov. resembles Scipopus convexus sp. nov. in having a paracephalon with strongly convex, upturned bumps, but differs by the white first fore tarsomere and the fine white setae on T1.

Etymology

The name, from the Latin adjective for ‘flat’, refers to the flat dorsal surface of the head (most obvious when viewed from the side).

Type material examined

Holotype

BOLIVIA • 1 ♀; La Paz , Heath River Wildlife Centre , ~ 21 km SSW of Puerto Heath; 12°40′ S, 68°42′ W; 1–11 May 2007; S.M. Paiero leg.; rainforest, Malaise; CBFC (photographed, Fig. 29A, C ).

Paratypes

BOLIVIA • 4 ♀♀; same collection data as for holotype; 29 Apr.–11 May 2007; M.D. Jackson leg.; CBFC (♀ dissected and photographed, Fig. 29E–F ) • 1 ♀; same collection data as for preceding; debu00289615/MYCRO515-19 sequenced for CO1–5′; DEBU .

BRAZIL • 1 ♀; Amazonas , Manaus, Reserva Ducke; 31 Sep. 1986; “Luiz:uly SSES”; INPA .

PERU • 1 ♀; Madre de Dios, Los Amigos Biol. Stn; 2–14 Jun. 2006; Paiero & Klymko leg.; debu00281540/MYCRO638-20 unsuccessfully sequenced for CO1–5′; MUSM • 1 ♂; same collection data as for preceding; debu00281539/MYCRO516-19 sequenced for CO1–5′; MUSM (dissected and photographed, Fig. 29B, D ) .

COLOMBIA • 1 ♀; Amazonas PNN Amacayacu, Cabaña Lorena ; 3°0′ S, 69°59′ W; 210 m a.s.l.; 1–15 Sep. 2001; J. Parente leg.; Malaise; M. 2202; debu01088994/MYCRO548-19 sequenced for CO1–5′, CO1–3′, 12S, 28S; IAVH • 1 ♀; Putumayo, PNN La Paya Cabaña Viviano ; 0°7′ S, 74°56′ W; 320 m a.s.l.; 1–15 Nov. 2000; R. Cobete leg.; Malaise; M. 2439; IAVH • 1 ♀; Amazonas PNN Amacayacu San Martin ; 3°23″ S, 70°06′ W; 150 m a.s.l.; 2–16 Apr. 2001; D. Chota leg.; M.1613; IAVH .

Description

LENGTH. 13–15 mm.

HEAD. Palpus orange, pale microtrichose and setulose, narrow (length 6.0 × height). Clypeus orange, width 1.9× height, bare medially, white microtrichose in posterolateral corners. Frontal vitta dull, orange, microtrichose. Orbital plate bare and shiny anteriorly. Epicephalon dull, orange, microtrichose, not clearly delineated from upper frontal vitta. Paracephalon orange, with upturned strongly convex projections ( Fig. 29C ). All head chaetotaxy well-developed.

THORAX. Scutum dark brown, microtrichose, with pale brown median vitta and pale microtrichose spots anterior to transverse suture. Female cervical sclerite very slightly convex medially. Postpronotal lobe dark brown, setulose anterolaterally. Notopleuron dark brown, pale microtrichose anteriorly and posteriorly, with median pale chevron ( Fig. 30B ). Pleuron with the following microtrichosity: entirely white on proepisternum, white on proepimeron with posterodorsal corner brown, white on anteroventral ½, dorsal and posterior margins of anepisternum, with ventral corner and remainder brown, almost entirely white on katepisternum, with small brown median and posterodorsal spots, white with median brown spot on katatergite. Legs dark brown or black, fore tarsomere 1, sometimes 2–3 white, hind tarsomere 1 almost entirely white.

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

FEMALE ABDOMEN. P1 mostly dark brown, grey on posterior margin, dorsal half of P2 with dark brown patch with concave ventral margin, lower half pale grey, P3–6 dark grey, lower third darker ( Fig. 30C ). T1+2 ~1.8× T3. Oviscape black, white-microtrichose spot anterodorsally and on anteroventral ⅓, ~3.0 × length of T6. Combined spermathecal ducts long; common duct narrow, ⅓ of entire duct length. Paired spermathecal duct long (> 10.0 × length of paired spermathecae), narrow basally, swollen distally and apically. Paired spermathecal stems very long, ≥ 2.0× length of spermathecae, relatively inornate but with minute tubercles. Paired spermathecae bent basally, rounded. Single spermathecal duct arising from basal ⅛ of paired duct, narrow, <½ diameter and length of paired duct, swollen apically. Single spermatheca finger-like and very elongate.

MALE ABDOMEN. Pleuron of available specimen discoloured. T1+2 ~2.0× T3. Genital fork ~2.0 × length of T6, arms converging, inner basal process small and straight, ~ ¹/7 length of arm. Epandrium elongate, length 2.0× height, nearly rectangular in lateral view, short setose on posteroventral margin. Basiphallus projecting outwards, crescent-shaped. Basal distiphallus very short (shorter than phallic bulb), broad, ending in phallic bulb. Phallic bulb short, length ≈ height, upper and lower chambers of nearly equal size. Distal distiphallus long, broad, ~1.5 × length of epandrium, apex tube-like. Phallapodeme very broad and apically expanded. Anterior apex of hypandrium broad and expanded.

Distribution

Bolivia, Colombia, Brazil.

Figures

Fig. 6. Variation in oviscape white microtrichosity. A. Scipopus (Scipopus) planus sp. nov. B. Scipopus (Scipopus) belzebul (Schiner, 1868). C. Scipopus (Parascipopus) nigriscapus subgen. et sp. nov.

Fig. 29. Scipopus (Scipopus) planus sp. nov. A. Head, ♀, anterior view, holotype (CBFC). B. Male genital fork, ventral view, Peru, paratype (MUSM). C. Head and thorax, ♀, dorsal view, holotype (CBFC). D. Male terminalia, lateral view, Peru, paratype (MUSM). E. Habitus, ♀, Bolivia, paratype (CBFC). F. Female spermathecae and associated structures, Bolivia, paratype (CBFC). Abbreviations: b = basiphallus; bc = bursa copulatrix; bdp = basal distiphallus; cd = common duct; ddp = distal distiphallus; e = epandrium; ea = ejaculatory apodeme; h = hypandrium; p = phallapodeme; pb = phallic bulb; pd = paired spermathecal duct; ps = paired spermatheca; pss = paired spermathecal stems; sd = single spermathecal duct; sp = sperm pump; ss = single spermatheca.

Fig. 30. Scipopus (Scipopus) planus sp. nov. (CBFC).A.Anterior thorax, lateral view, ♀. B. Thorax, ♀, left lateral view, illustrating white microtrichosity. C. Living, ♀, Brazil. Abbreviations: an = anepisternum; ans = anterior notopleural seta; cs = cervical sclerite; n = notopleuron; pem = proepimeron; pes = proepisternum; pess = proepisternal seta; ppl = postpronotal lobe.