Pelecinobaccha cora Curran 1941, comb. nov.
Creators: name: Miranda, Gil Felipe Gonçalves
name: Marshall, Stephen A.
name: Skevington, Jeffrey H.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Syrphidae
Pelecinobaccha
Pelecinobaccha cora

description: Pelecinobaccha cora (Curran, 1941) comb. nov.
Map 11. Figure 24.
Baccha cora Curran, 1941.— Curran, 1941: 281. Type locality: Brazil, Mato Grosso, Chapada. Holotype male AMNH. Hull, 1949a: 144 (redescription), 194 (fig.16, male abdomen, mislabelled as female), 278 (fig. 374, male wing), 284 (fig. 390, male wing).
Ocyptamus cora. Thompson et al., 1976: 15 (catalog citation).
Baccha anthinone Hull, 1949.— Hull, 1949a: 179. Type locality: Peru, Ucayali. Pucallpa. Holotype male unknown. n. syn. Ocyptamus anthinone. Thompson et al., 1976: 12 (catalog citation).
Male. Head: Black. Face pale on lateral ¼, pale colour extends slightly below tubercle. Lunule black, with small pale area above antennal insertion, central macula broadly connected to frontal triangle color. Frontal triangle sometimes slightly lightened in small lateral vittae under pollinose maculae, with white pollen restricted to lateral narrow oval spots connected to face pollen by narrow lateral vittae of differently oriented pollen, brown dull pollinose medially. Vertical triangle with a single median row of pile; ocellar triangle separated by its length from posterior eye margin. Eye contiguity as long as vertical triangle length. Eye with posterior indentation positioned at level of antenna insertion. Antennal insertions confluent, ventral margin with short dorsal extension. Dorsal ¼ of occiput with 2 rows of simple black pile, anterior row with shorter pile; middle ½ with posterior row of long scalelike white pile, and 2–3 anterior rows with shorter, simple and black pile; ventral ¼ with 2–3 rows of white, scalelike pile, anterior rows slightly shorter.
Thorax: Scutum dark brown, mainly dull brown-pollinose, except white on notopleuron; scutum with short black pile, pile slightly longer on notopleuron and anterior to scutellum, and with anterior row of longer white pile interrupted in the middle by shorter pile. Scutellum dark brown, black pilose, subscutellar fringe pile long and black or sometimes pale. Pleuron dark brown except for small pale area on posterior ½ of the posterior anepisternum and dorso-posterior portion of katepisternum; usually mostly black pilose, at least on ventroposterior katepisternum, except white pilose on ventro-posterior ½ of posterior anepisternum and dorso-posterior katepisternum. Plumula golden and normal. Calypter light brown, margin darker. Halter yellow, capitulum orange.
Wing: Basal ½ dark brown (on cells bc, c, sc, r, basal ⅔ of r1, basal ⅓ of r2+3, basal portion of r4+5, bm, basal ⅓ of dm, cu p and basal ½ of cua1), the remaining of cells r1 and r2+3 are light brown and sometimes faded, the rest of the wing hyaline, entirely microtrichose; alula large, basally 1.5 times and apically 4.25 times as broad as c cell, anterior ½ dark, entirely microtrichose.
Legs: Pro and mesoleg dark brown, apex of femora and base of tibiae with small pale area. Metaleg black, apical ½ of metabasitarsomere to at least 4th metatarsomere white, 5th metatarsomere sometimes light brown.
Abdomen: Dark brown; 3.75 times as long as thorax. First tergite entirely black pilose or entirely white pilose (‘Chapada’ specimens). Second tergite long, length 5 times minimum width, and pale on latero-basal ¾; 2nd tergite with central elongated triangular region of dull black pollen, and with black, appressed pile dorsally, pile white, long and erect laterally. Third tergite trapezoidal and long, length 3–3.5 times minimum width, baso-lateral corners of the tergite pale; 3rd tergite with large central triangular region of dull black pollen, and short, appressed and black pile. Fourth tergite quadrate, entirely black but sometimes with central pair of faint pale vittae; remaining characteristics as on 3rd. Fifth tergite rectangular and wide, and with 3 central short vittae of dull black pollen; remaining characteristics as on 4th. Genitalia: Cercus with 1 row of pile on medial margin and 3 irregular rows on lateral margin. Surstylus with a sub-quadrate apex, directed apicoventrally, with setulae (around 12) on ventral apex, concentrated on the apical margin, pilose on dorsal surface. Subepandrial sclerite trapezoidal, apico-medial region raised dorsally, weakly sclerotized on apico-lateral ½. Hypandrium with quadrate ventral notch on anterior ½. Phallapodeme well sclerotized throughout with expanded base. Distiphallus with anterior surface slightly undulated, apex slightly curved anteriorly. Postgonite slightly expanded baso-ventrally, ventral surface concave on medially, lateral surface straight and expanded ventrally, dorsal surface straight and with subapical convexity; postgonite apex convex anteriorly, with convex ventral extremity and acute dorsal extremity.
Female: Similar to male except: Face pale region slightly more extended. Frons pale laterally on ventral ½ or entirely black, white-pollinose maculae more triangular. Vertex narrow; ocellar triangle 2–2.5 times its length from posterior eye margin and ~1 ocellus-width from lateral eye margin. Eye with posterior indentation slightly dorsal to antennal insertions. Anterior row of dorsal occiput with very short pile. Black pile sometimes absent in front of transverse suture on notopleuron. Pleuron mainly white pilose, only ventro-posterior katepisternum black pilose, and anterior anepisternum sometimes with a few black pile. Wing hyaline on apices of r1 and r2+3. Metabasitarsomere sometimes with slightly less than apical ½ pale. First tergite sometimes with white pile dorsally and on basal ½. Second tergite shorter, length 3.3 times minimum width, with shorter pile and with anterior extension of pollinose macula narrow and short. Third tergite shorter, length 1.9 times minimum width, sometimes with central pair of faint pale vittae, disconnected from pale lateral corners. Fourth tergite rectangular and wide, 1.4 times wider than long, with baso-lateral pair of narrow fasciate pale maculae and sometimes a central pair of faint pale vittae. Fifth tergite sometimes with baso-median pair of short faint pale vittae. Sixth segment normal, as long as 5th. Genitalia: 7th tergite rectangular, wide and short, 2 times wider than long, basal extensions ¾ of the 6th segment’s length; 7th segment lateral sclerite sub-triangular, with acute baso-ventral extremities. Eighth tergite with central region unsclerotized, apex 2-pronged, basal crest short. Cercus with sub-basal small convex extension.
Length. 11–14mm; wing 10.5–11.5mm.
Distribution. Bolivia (La Paz), Brazil (Goiás, Mato Grosso), Peru (Huanuco, Madre de Dios).
Material examined. BOLIVIA. La Paz, San Juanito, nr. Teoponte, 500m., 15°29'42S 67°47'48W, 8 Apr 2001, S. A. Marshall (2 ♂, DEBU 00149576 & ...599). BRAZIL. [Mato Grosso], Chapada, Cornell U. Lot 653 Sub. 7, Frank M. Hull Collection C.N.C. 1973 (1 ♂, CNC Diptera 161218); …, S. W. Williston Collection, Baccha cora Curran Holotype [red label] (1 ♂, holotype Baccha cora, AMNH); ..., Baccha cora Curran Allotype [red label] (1 ♀, allotype Baccha cora, AMNH); ..., Utiariti, Rio Papagaio, Nov 1966, [K.] Lenko & Pereira (1 ♀, MZUSP). PERU. Huanuco, Tingo Maria, 2200 ft., 27 May 1947, J. C. Pallister (1 ♂, AMNH) & Nov 1949, H. A. Allard (1 ♂, USNM ENT 00257682); Madre de Dios, Rio Tambopata Res, 30 air km. SW Pto. Maldonado, 290m, subtropical moist forest, 21–25 Nov 1979, J. B. Heppner (1 ♂, USNM ENT 00257675); …, Manu, Erika (near Salvacion), 550m, 5–6 Sep 1988, A. Freidberg (1 ♀, USNM ENT 00257689).
Comments. The ‘Chapada’ specimens vary from the other specimens by having mainly white pile on the 1st abdominal tergite.
Close to P. clarapex and P. andrettae sp. nov., but distinguished by the notopleuron with black pile anteriorly to the transverse suture, male wing with apices of r1 and r2+3 light brown, the hypandrium with a quadrate ventral notch, and the female 8th tergite medially weakly sclerotized.
The holotype of B. anthinone is missing, but Hull’s 1949a description of this species makes it plausible that it is a synonym of B. cora.
description: Published as part of Miranda, Gil Felipe Gonçalves, Marshall, Stephen A. & Skevington, Jeffrey H., 2014, Revision of the genus Pelecinobaccha Shannon, description of Relictanum gen. nov., and redescription of Atylobaccha flukiella (Curran, 1941) (Diptera: Syrphidae), pp. 1-154 in Zootaxa 3819 (1) on pages 33-35, DOI: 10.11646/zootaxa.3819.1.1, http://zenodo.org/record/251284