Atrichopogon riopardensis Farias, Pessoa & Paulino-Rosa 2021, sp. nov.
Creators: name: Farias, Emanuelle De Sousa
name: Santos, Sanmya Silva Dos
name: Paulino-Rosa, Jokebede Melynda Dos Santos
name: Pessoa, Felipe Arley Costa
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Ceratopogonidae
Atrichopogon
Atrichopogon riopardensis

description: Atrichopogon riopardensis Farias, Pessoa & Paulino-Rosa sp. nov.
(Figs. 7 A–E; 8 A–D; 9 A–F; 10 A–F; 11 A–E)
Diagnosis. Male. Only extant species of Atrichopogon with pigmented wings in the Neotropical region with gonostylus forked near its midlength; inner portion short, like a fingernail, with longitudinal furrow; outer portion, apically curved directed mesally, 4 × longer than inner, with one long seta in basal 1/3. Female. Without good characteristic features: wing with two distinct darker spots; uniform color pattern of the antenna and legs; one short, ovoid, sclerotized spermatheca with short and broad neck.
Male (Fig. 7C). Head (Fig. 7A); head width/mouthpart length 2.60–3.00 (2.80, n = 7). Ommatidia with interfacet pubescence; broadly abutting medially for length of 3.9–4.4 (4.16, n = 5) ommatidia (Fig. 7D). Antenna pale brown; proportions of flagellomeres as in Figure 7E; flagellomeres 2–10 fused; plume on flagellomeres 1–9 well developed; flagellomeres 10–13 without plume; 9th flagellomere 0.83 times shorter than flagellomere 10; flagellomere 13 with apical projection not basally constricted. AR 0.99–1.10 (1.00, n = 5). Palpus pale brown (Fig. 7B); third segment short to moderately elongate, swollen at mid-length, with well-developed pit somewhat apical to mid length; segments 4–5 separated; segment 5 conical. PRIII 2.30–2.70 (2.40, n = 7).
Thorax dark brown (Fig. 8B). Scutum with setae arising directly from surface, with lateral sutures (Fig. 8D). Paratergite with one seta. Anepisternum well-developed, broadly bilobed posteriorly. Wing with patch of pigmentation in area of r-m and posterior to apex of R 3 (Fig. 8A); macrotrichiae on membrane in apical portion of r 3, m 1 and in apical half of M 1; wing length 0.85–0.95 (0.90, n = 8) mm. CR 0.66–0.74 (0.68, n = 8). Halter stem pale brown, knob hyaline. Legs (Fig. 8C) yellowish brown; hind tibial spur shorter than width of hind tibia, hind tibial comb with 9 spines. TRI 3.37 (n = 1), TRII 3.24 (n = 1), and TRIII 2.63 (n = 1); empodia present.
Abdomen (Fig. 9A). Segments 1–8 yellowish brown, with ventrolateral black marks well developed on segments 1–3, 5 and 6, smaller on segment 4; distal segments 9–10 dark brown. Terminalia brown (Figs. 9B, C); segment 9 equal in width to segment 8; tergite 9 moderately elongate, extending to about level of apex of gonocoxite; posterior margin rounded. Sternite 9 with posterior margin nearly straight and scattered row of setae. Gonocoxite without the medial lobe, with three large setae laterally in the proximal inner part (Fig. 9C); length 3.00–3.20 (3.10, n = 6) × the basal width. Gonostylus forked near midlength (Fig. 9F); inner portion short and fingernail-like, with longitudinal furrow; outer portion elongate and apically curved directed mesally, 4 × longer than inner portion, with one long seta in basal 1/3. Aedeagal-parameral complex quadrangular (Figs. 9D, E), with delicate lateral arms curved posteriorly; dorsal portion sclerotized on distal 1/3, bearing two anteroposteriorly directed projections, ending as process laterally directed; ventral portion with apical part pointed. Cercus short, slightly tapering, extending to the apex of tergite 9.
Female (Fig. 10C). Similar to male. Head (Fig. 10B); head width/mouth part length 2.80 (n = 1). Eyes broadly abutting medially for length 4.20 (n = 1) ommatidia (Fig. 10D). Antenna medium brown; flagellomeres 1–8 vasiform (Fig. 10A). AR 1.40 (n = 1). Mandible well developed, with 24 teeth (n = 1) (Fig. 10E). Palpus medium brown; third segment short (Fig. 10F), pit at mid-length; segments 4–5 separate. PRIII 2.25 (n = 1). Thorax dark brown (Fig. 11B). Wing (Fig. 11A) pattern of pigmented membrane as observed in males; macrotrichiae on membrane in apical portion of r 3, m 1, and apical half of M 1; wing length 0.90 (n = 1) mm. CR 0.77 (n = 1). Legs as shown in figure 11E. Abdomen yellowish brown (Fig. 11D), with ventrolateral black marks well developed on segments 1–3, 5 and 6, smaller on segment 4; segments 8–10 pale brown; cercus pale brown. Genitalia. One dark brown ovoid spermatheca (Fig. 11C), measuring 72.5 × 70.0 (n = 1) μm, with a short neck, 7.5 (n = 1) μm.
Type material. Holotype, adult male, slide-mounted, labelled as follows: BRAZIL, Amazonas, Presidente Figueiredo Municipality, Rio Pardo rural settlement, 1°49ʹ02.3″ S 60°19ʹ03.5″ W, CDC light trap, canopy forest, principal road, Pereira-Silva J. Col. VII. 2016 (ILMD). Allotype, adult female, slide-mounted, same data as holotype (ILMD). Paratypes: 3 males, same data as holotype, except Gusmão road, VIII. 2015 (ILMD); 2 males, same data as holotype, except for areas of transition between secondary capoeira and forest, F. Pessoa col. VII. 2010 (ILMD); 2 males, same data as holotype, except F. Pessoa col. VIII. 2010 (ILMD).
Etymology. This species is named in honor of the rural settlement of Rio Pardo, type locality, where Leônidas and Maria Deane Institute have a field base and have developed research activities since 2007.
description: Published as part of Farias, Emanuelle De Sousa, Santos, Sanmya Silva Dos, Paulino-Rosa, Jokebede Melynda Dos Santos & Pessoa, Felipe Arley Costa, 2021, Description of three new species of biting midge of the genus Atrichopogon Kieffer (Diptera: Ceratopogonidae) from Brazilian Amazon, pp. 275-290 in Zootaxa 4952 (2) on pages 280-284, DOI: 10.11646/zootaxa.4952.2.4, http://zenodo.org/record/4674037