Culicoides pseudocrescentis Tavares & Luna Dias
Creators: name: Felippe-Bauer, Maria Luiza
name: Santarém, Maria Clara Alves
name: Macedo, Antonio Carlos Cruz
name: Okuda, Liria Hiromi
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Ceratopogonidae
Culicoides
Culicoides pseudocrescentis

description: Culicoides pseudocrescentis Tavares & Luna Dias
Fig. 2 (A–G)
Culicoides pseudocrescentis Tavares & Luna Dias, 1980: 397 (male; Brazil – Rio de Janeiro; fig. male, wing, palpus, legs, genitalia); Spinelli & Wirth, 1986: 564 (key, fig. wing); Wirth et al., 1988: 30 (in Atlas; fig. wing; distrib.); Borkent & Wirth, 1997: 79 (in catalog); Borkent & Spinelli 2000: 38 (Neotropical catalog; distrib.); Spinelli et al., 2005: 149 (key, fig. wing, Argentina, Paraguay); Borkent & Spinelli, 2007: 72 (in catalog; distrib.); Borkent & Dominiak, 2020: 130 (in world catalog); Santarém & Felippe-Bauer, 2023: 26 (Brazilian catalog; distrib. - Espírito Santo, Rio de Janeiro).
Diagnosis. Female. Only species in the daedalus species group with the following combination of features: antennal ratio 1.21, sensilla coeloconica on flagellomeres 1,9–13; palpal ratio 2.27; PH ratio 0.67; distal pale spot in r3 crescent-shaped; subapical pale band on hind femur infuscated.
Description. Female. Head dark brown (Fig. 2A). Eyes bare (Fig. 2B), slightly contiguous below. Antenna (Fig. 2A) uniformly dark brown, flagellomeres 1–8 vasiform, 9–13 elongate; AR 1.21 (1.19–1.23, n=2); sensilla coeloconica on flagellomeres 1, 9–13, two or three on 1, one or two on 9–11, two on 12, three on 13. Palpus dark brown (Fig. 2C), third segment swollen distally, with subapical rounded deep pit; PR 2.27 (2.25–2.30, n=2); PH ratio 0.67 (n=2). Mandible with 12–13 (n=2) teeth.
Thorax. Dark brown, with prominent pattern of yellowish patches, humeral depression pale; pale areas on lateral sides; scutellum dark brown mesally, irregular pale spots on sides; postscutellum dark brown. Wing (Fig. 2D) length 0.98 (0.97–1.00, n=2) mm; width 0.48 (0.47–0.50, n=2) mm; with contrasting pattern of pale and dark spots; 2 nd radial cell in dark spot; pale spot over R-M extending from M 1 to the costal margin; poststigmatic pale spots in cell r3 small, rounded, posterior one located distinctly proximal to anterior one, distal pale spot in r3 crescent-shaped, not abutting wing margin or M 1; distal pale spot in m 1 round, far from wing margin; m 2 with one proximal pale spot near CuA, two between the medial and mediocubital forks and a distal one not reaching wing margin; cua 1 with one pale spot that reaches the pale area on fork of CuA1 and CuA2; anal cell with two proximal and two distal pale spots, the distal ones round. M 1 and M 2 entirely pale-margined; M 2 with pale spot stradling middle of vein; wing base with a pale spot on M. Macrotrichia abundant, present on r 3, m 1, m 2, cua 1 and in anal cell; CR 0.61 (0.60–0.62, n=2). Halter infuscated. Legs dark brown (Fig. 2F); femora with subapical pale bands, infuscated on hind femur; tibiae with subbasal pale bands; hind tibial comb (Fig. 2E) with four spines, the two nearest the spur, longest.
Abdomen. Dark brown. Two subequal-size round spermathecae (Fig. 2G), each measuring 38 µm by 33 µm (n=2) and 33 µm by 30 µm (n=2), without sclerotized duct. Rudimentary third spermatheca (0.013 µm, n=2) and short, cylindrical sclerotized ring present (0.03 µm, n=2).
Male. See Tavares & Luna Dias (1980).
Specimens examined. 1 slide mounted female, labeled “ Culicoides pseudocrescentis Tavares & Luna Dias ”, “ Fazenda da Unidade de Pesquisa e Desenvolvimento de Andradina, APTA Regional /SAA, Andradina, São Paulo, Brasil, 20°50’34.8”S, 51°21’32.4”W, 08–09.XI.2022, Onderstepoort UV (16h - 08h, atrás da casa da diretora, A.C.C. Macedo, A.M. Alencar, A.H.C.N. Romaldini ” [legs.] (CCER #3878) (NEW RECORD); 1 slide mounted female, labeled “Monumento Natural dos Pontões Capixabas, 19°12’34.862 S, 40°49’13.145” W, Pancas, Espírito Santo, Brasil, 26.VII.2010, forest, CDC light trap, I.S. Pinto ” [leg.] (CCER #1500).
Distribution. Brazil (Espírito Santo, Rio de Janeiro, São Paulo), Paraguay (Itapuã), Argentina (Misiones).
description: Published as part of Felippe-Bauer, Maria Luiza, Santarém, Maria Clara Alves, Macedo, Antonio Carlos Cruz & Okuda, Liria Hiromi, 2024, New species of Culicoides, description of female of Culicoides pseudocrescentis Tavares & Luna Dias and new record of Culicoides castillae Fox from Southeastern Brazil (Diptera: Ceratopogonidae), pp. 581-587 in Zootaxa 5433 (4) on pages 584-586, DOI: 10.11646/zootaxa.5433.4.7, http://zenodo.org/record/10954693