Pelecinobaccha alucard
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 alucard

description: Pelecinobaccha alucard Miranda sp. nov.
Map 10. Figure 15 (e–i).
Type locality. Costa Rica, Guanacaste, Eco Museo, Río Aguas Claras, 420m, 10°15'N 84°59'W. Holotype male INBio.
Male. Head: Black. Face slightly lightened on lateral ¼, usually with only a few black pile ventral to antennal insertion. Lunule pale above antennal insertion, central macula diffuse brown, not so distinct and weakly connected to frontal triangle color. Frontal triangle with silvery-white pollen continuous from face and restricted to lateral margin, brown-pollinose medially. Vertical triangle with 3 rows of pile, but most pile concentrated in a single median row; ocellar triangle ~1.5 times its length from posterior eye margin. Eye contiguity as long as vertical triangle length. Eye with sub-triangular indentation on posterior margin positioned slightly dorsal to antenna insertion. Antennal insertions confluent, ventral margin with short dorsal extension. Dorsal ¼ of occiput with posterior row of white scale-like pile and anterior row of shorter simple black pile, middle 2/4 with 3–4 rows of scale-like white pile, posterior row longer, anterior rows sometimes with a few simple black pile dorsally; ventral ¼ with 3 irregular rows of scale-like white pile.
Thorax: Scutum black, mainly dull pollinose, except notopleuron white-pollinose; scutum with long black pile, pile longer on notopleuron, with anterior uninterrupted row of scale-like white pile. Scutellum black, with long, black pile, subscutellar fringe pile long and white, sometimes with a few black pile laterally. Pleuron black; white pilose except black on dorso-posterior ½ of posterior anepisternum and anterior anepimeron, the pile is densely arranged on the posterior anepisternum. Plumula long and white. Calypter white. Halter stem brown, capitulum yellow.
Wing: Hyaline with anterior margin darker (cells bc, c and sc, diffusely dark on basal ½ of r1 and basal ⅔ of r), entirely microtrichose; alula large, basally 1.5 times to apically 3 times as broad as c cell, hyaline, entirely microtrichose.
Legs: Proleg brown, apex of profemur and base of protibia pale, basal ½ of protibia light brown. Mesoleg dark brown, apex of mesofemur and base of mesotibia pale, basal ½ of mesotibia light brown. Metaleg dark brown, with small pale area on base of metatibia, pale on apical 1/5 of metabasitarsomere to 3rd metatarsomere, 4th metatarsomere light brown, 5th metatarsomere brown; metacoxa pile white dorso-laterally.
Abdomen: Black; 2.4 times as long as thorax. First tergite mainly black pilose, pile white baso-ventrally. Second tergite rectangular, length 1.5 times minimum width, and with central triangular region of dull black pollen; 2nd tergite black pilose except white on base and baso-lateral ⅔, pile appressed except erect on base and laterally. Third tergite trapezoidal, length 1.2 times minimum width, with small pale area on baso-lateral corners, and with large central triangular region of dull black pollen; 3rd tergite with appressed and black pile, slightly longer, erect and white baso-laterally. Fourth tergite rectangular and wide, with central triangular region of dull black pollen with 3 small extensions basally, and with appressed and black pile, except white on baso-lateral ½. Fifth tergite rectangular and wide, with 3 central vittae of dull black pollen, and with appressed and black pile, except white laterally. Genitalia: Cercus with 1–2 irregular rows of pile on medial margin and 2 irregular rows on lateral margin. Surstylus sub-quadrate on lateral view, directed ventrally, with setulae (around 10) ventrally on apical corner, pilose on basal ⅔ of the dorsal surface. Subepandrial sclerite crescent shaped. Hypandrium with squared notch extending to anterior 3/5, with few pile ventro-apically. Basiphallus with posterior apex strongly curved posteriorly; Distiphallus with anterior surface straight. Phallapodeme widened medially. Postgonite narrow, ventral surface straight, dorsal surface straight; postgonite apex rounded, with acute subapical dorsal extremity.
Female: Female unknown.
Length. 6.5–9.5mm; wing 5–7mm.
Distribution. Costa Rica (Guanacaste, Puntarenas).
Primary type. Holotype: Male in good condition, with left proleg dissected and glued on a point pinned with the specimen. Genitalia dissected and placed in a plastic tube pinned with the specimen. Holotype labels: ‘ COSTA RICA, Prov. Guanacaste, // Eco Museo. Río Aguas Claras, // 420m. 20 JUN 1997. F. Alvarado. // L_N_252800_438500, #47846’ ‘INBIO CRI002 572631’ ‘ Holotype // Pelecinobaccha // alucard // Miranda’ [red label].
Paratypes. COSTA RICA. Guanacaste, Eco Museo, Río Aguas Claras, 420m, L_N_252800_438500, #47846, 20 Jun 1997, F. Alvarado (2 ♂, INBIO CRI002 572632 & ...662); Puntarenas, Isla Chira, Pueblo Montero, 0m, L_N_233800_406400, #84193, 28 Jul 2005, J. Azofeifa, J. Gutiérrez & I. Lopez (1 ♂, INB0003968103 INBIOCRI COSTA RICA).
Comments. This species is externally very similar to P. dracula, but the genitalia are distinctive.
Etymology. The specific epithet is the word ‘Dracula’ spelt backwards. It is to be treated as a noun in apposition.
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 21-22, DOI: 10.11646/zootaxa.3819.1.1, http://zenodo.org/record/251284