Calythea comis
Creators: name: Gomes, Lucas Roberto Pereira
name: Carvalho, Claudio José Barros de
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Anthomyiidae
Calythea
Calythea comis

description: Calythea comis (Stein, 1911)
(Figs. 3 a-c, 4i-l, 5d-f, 6)
Diagnosis. Calythea comis can be separated from the other Neotropical species of the genus in the frons with fronto-orbital plates separated by frontal vitta (Fig. 3a); distance between presutural acrostichal rows, even anteriorly in the first pair, shorter than their distance to dorsocentral rows; and pattern of pruinosity, which extends forward covering the region of dorsocentral setae, forming an inconspicuous stripe (Fig.3b).
Redescription. Male. Body length: 4.5-5.0 mm. Wing length: 4.0- 4.5 mm.
Thorax black with silvery pruinose on postpronotal lobe and notopleuron; pronotum pruinose basally running parallel to the notopleural suture, extending to transverse suture with forward projection, reaching the anterior dorsocentral presutural seta (Fig. 3b). Calypters white with the edge yellow. Halter basally brownish and yellow apically. Legs black with pulvillus yellowish. Abdomen black with silvery pruinosity on tergites 2-5, forming two dorsal almost triangular spots, segments 3 and 4 with laterally and superiorly prolonged spots.
Head. Eyes bare. Frontal vitta narrow, distance between eyes subequal to width to anterior ocellus (Fig. 3a). 6-7 pairs of frontal setae. Face not projecting beyond frontal angle. Gena shorter than length of pedicel. Parafacialia relatively broad, with about 1/3 of postpedicel width. Postpedicel twice longer than pedicel. Pedicel with long dorsal setae, shorter than pedicel.
Thorax. 2 postpronotals; dorsocentrals 2+3; acrostichals 4+8 setulaelike, with only the prescutellar developed; prealar absent. Anepisternum with a row of 5 posterior setae and an upward anterior seta below anterior notopleural seta. Scutellum with a pair of basal, preapical and apical setae; the apical seta almost twice longer than the basal one. Meron with a tuft of 4-5 setulae, located posteriorly below spiracle. Katepimeron with 4-5 setulae.
Legs. Fore tibia with 1 submedian p seta; 1 preapical d seta, and 1 apical pv; fore pretarsus with 1 basal v seta. Mid femur with 4 v setae at base; and 2 p preapical setae; midtibia with 1 median pv seta, 1 submedian p seta; preapical seta on av, d, pv, and v. Hind femur with 2 av rows, 1 long and stout and 1 long fine; 2 ad, 2d, and 1pd preapicals; 1 pv row of long and sparse setae; hind tibia with a submedian av, 1 supramedian and 1 submedian ad, and a long submedian pd seta three times longer than tibia width; preapical seta on av and d; hind pretarsus with 1 basal v seta.
Abdomen. With many covered setulae; sternite 1 setulose, setulae twice longer than sternite length; tergite 3-5 with long median and lateral marginal seta, terminal segment with apical and discal setae; sternite 5 rectangular with a serrated edge on posterior incision (Fig.4i).
Terminalia. Cerci triangular in posterior view (Fig. 4j); surstyli in posterior view long and straight, with proximal rounded incision (Fig. 4j), and in lateral view, slightly curved and slightly enlarged apically (Fig. 4k); Hypopygium in lateral view with phalapodema long and slightly curved, pregonite with two long setae, postgonite with a median long seta and two apical setulae, epiphallus as long as postgonite, distiphallus very large and rounded (Fig. 4l).
Female. Similar to male, except:Thorax with 3 conspicuous dorsal stripes, width of central stripe not exceeding the line of acrostichal setae; and 2 inconspicuous thin stripes close to central stripe, with about 1/5 the width of central stripe (Fig. 3c). Scutellum fully pruinose, except basally on lateral region.Anepisternum with a row of 3 posterior setae. Meron with a tuft of 3-5 setulae, located posteriorly below spiracle. Katepimeron with 3 setulae. Terminalia with cerci dilated distally, with long setae; epiproct subtriangular, as long as its wide; hypoproct subconical, 1.3 times longer than its wide; sternite 6 and 7 trapezoid; tergite 6 and 7 T-shaped dorsally; sternite 8 shorter than tergite 8 (Figs. 5 d-f).
Material examined. Brazil: Paraná, Antonina, Reserva Sapitanduva [-25.439498, -48.746125], Lâmpada [light trap], Lev. Ent. PROFAUPAR, 02.xi.1986, 1♀ (DZUP 099272); Castro [-24.7978, -49.9976], S. Loroca, ix.1961, 3♂♂ (DZUP 099245–47); Curitiba [-25.4332, -49.2667], P.D.Hurd, xi.1959, 2♀♀ (DZUP 099270–71); same label information, except: 900m, Dept. Zoologia, 14.i.1986, 1♀ (DZUP 099278); Palmas [Palmas Grasslands Wildlife Refuge], 1115m, grasslands, -26.5025, -51.6755, A. C. Pereira, 9.xii.2013, 1♂ (DZUP); same label information except: 29.x.2014, 2♀♀ (DZUP); 28.iv.2014, 1♀ (DZUP); 16.i.2014, 1♂ (DZUP); 20.x.2014, 1♂ and 1♀ (DZUP); 29.x.2014, 1♀ (DZUP); inside forest, -26.5022, -51.6738, 12.vii.2014, 1♂ (DZUP); regeneration area, -26.5572, -51.5422, 03.xii.2013, 1♀ (DZUP); 21.ix.2012, 1♂ (DZUP); Tijucas do Sul, Morro do Araçatuba, -25.8997, -49.0096, 1200 m, P.C. Grossi, 01.xi.2010, 2♂♂ and 22 ♀♀ (DZUP); Rio Grande do Sul, Arroio Grande, Distrito Mauá [-32.233483, -53.086682], Malaise trap, R. F. Krüger, 22.xi.2002, 2♀♀ (DZUP 099253; 099256); same label information, except: P. B. Ribeiro, 6♀♀ (DZUP 099259–64); 15.xi.2002, 2♀♀ (DZUP 099254–55); 07.ii.2003, 1♀ (DZUP 099257); 31.i.2003, 1♀ (DZUP 099258); Santa Catarina, Itajaí, EMPASC [-26.9534, -48.7358], C. Paloschi, ix.1988, 1♂ (DZUP 099244); same label information except: xi.1989, 4♀♀ (DZUP 099265–68). Chile: Bío-Bío, Lag. Laja [-37.4042, -71.3415], Luis Peñas, 13.ii.1957, 1♂ (WSU); Los Lagos, Maullín, Llanquihue [-41.2675, -73.0240], Luis Peñas, 16–21. ii.1957, 2♂♂ (WSU); Valparaíso, Laguna Verde [-33.1054, -71.6676], L. E. Peña, x.1969, 15♂♂ and 6♀♀ (MZUSP).
Distribution. Argentina (Río-Negro), Brazil (Minas Gerais, Paraná, Rio de Janeiro, Rio Grande do Sul *, Santa Catarina), Chile (Bío-Bío *, Los Lagos, Valparaíso *) and Peru (Tacna) (Malloch, 1934; Albuquerque, 1953; Pont and Ackland, 2009; Gomes et al., 2019) (Fig. 6). *= new records.
Remarks. The type-locality indicated as Tacna, Chile (Stein 1911; Pont and Ackland 2009) is a region that currently belongs to Peru. Some specimens from Chile have the body covered by pollen. There are some male specimens from Argentina, Brazil and Chile with 1-4 setulae on meron, which probably belong to this species (V.Michelsen, pers. comm.).
description: Published as part of Gomes, Lucas Roberto Pereira & Carvalho, Claudio José Barros de, 2022, Taxonomy of the Neotropical species of Calythea (Anthomyiidae: Diptera), with description of two new species from South America, pp. 1-11 in Revista Brasileira de Entomologia (e 20210102) (e 20210102) 66 (1) on pages 8-9, DOI: 10.1590/1806-9665-RBENT-2021-0102, http://zenodo.org/record/8111413