Evandromyia gaucha Andrade Filho, Souza, Falcão, 2007

Souza, Getúlio D., Shimabukuro, Paloma H. F. & Andrade Filho, José D., 2015, Description of the male of Evandromyia gaucha Andrade Filho, Souza, Falcão (Psychodidae, Phlebotominae), Revista Brasileira de Entomologia 59 (2), pp. 85-88 : 86-87

Evandromyia gaucha Andrade Filho, Souza, Falcão, 2007

Male. Sand fly of medium size, ca. 2704 ± 205 (n = 6) in length. The general coloration is light brown, pronotum and pleura (except katepisternum and katepimeron) pale.

Head: Length (including clypeus) 416 ± 17 (n = 6) long. Eyes: 133 ± 6 (n = 6). Clypeus 140 ± 6 (n = 6) long. Eyes length/head length ratio 0.32:1 (n = 6) and clypeus length/head ratio 0.34: 1 (n = 6). Antenna with ascoids with rudimental spur. Antennal formula F1–F13 2, F14 0, anterior prolongation short not reaching the distal end of the flagellomere, pre-apical papilla present on F1–F3 1 ( Fig. 1 ), F4–F7 0, F8–F10 2, F11 3, F12 5, F13 5, F14 6 ( Figs. 1 and 2 ), the ascoids in F13 have not been depicted in Fig. 1 due to the position of the segment which did not allow the representation of these structures. Flagellomere length: F1 = 353 ± 30 (n = 5), F2 = 150 ± 11 (n = 5), F3 = 164 ± 28 (n = 5), F13 = 76 ± 5 (n = 4) and F14 = 72 ± 1 (n = 4). Palp formula: 1.4.2.3.5 (n = 6). Labrum-epipharynx (LE) 209 ± 14 (n = 6) length. AIII/LE ratio 1.69:1. Palpomere length: P1 = 39 ± 4 (n = 6); P2 = 147 ± 10 (n = 6); P3 = 160 ± 10 (n = 6); P4 = 122 ± 10 (n = 6); P5 = 368 ± 35 (n = 5). Hyaline sensillae (Newstead’s spines) are implanted in the median region of the third palpomere. Labial sutures united.

Cervix: ventro-cervical sensillae present.

Thorax: 560 ± 40 (n = 6) long and mesonotum 492 ± 31 (n = 6) long. Presence of 1–4 (n = 6) proepimeral setae and 15–23 (n = 6) anepisternal setae. Setae on the anterior region of the katepisternum present. Wing ( Fig. 3 ): 2088 ± 98 (n = 6) long and 526 ± 24 (n = 6) wide. Ratio: length/width 3.97. Veins: R 5 1254 ± 50 (n = 5), ˛ 435 ± 40 (n = 6), ˇ 252 ± 31 (n = 6), γ 276 ± 25 (n = 5), Δ 80 ± 37 (n = 6), π 160 ± 35 (n = 5). All coxa brown. Legs without distinctive features. Length of femur, tibia, tarsomere I and tarsomeres II + III + IV + V, respectively: 816 ± 53 (n = 5), 932 ± 58 (n = 5), 568 ± 44 (n = 6), 726 ± 15 (n = 6); median leg: 800 ± 49 (n = 3), 1094 ± 88 (n = 4), 630 ± 61 (n = 3), 759 ± 14 (n = 4); posterior leg: 874 ± 65 (n = 5), 1338 ± 112 (n = 5), 701 ± 96 (n = 5), 800 ± 14 (n = 4).

Abdomen ( Fig. 2 ): 1992 ± 183 long (n = 6). Presence of tergal papillae on the tergites V to VII. Gonocoxite 241 ± 18 (n = 6) length 101 ± 6 (n = 6) with a sclerotized longitudinal band on its basal internal face and a narrow tubercle, in which are inserted 3–4 wide and long bristles. Gonostylus 177 ± 13 (n = 6) long with four spines: one apical; two external spines implanted in the apex of a single tubercle, the inferior one being shorter and thinner than the superior, the internal spine is setiform and situated in the basal quarter. Absence of the pre-apical seta. Paramere 223 ± 8 (n = 6) long and 73 ± 8 (n = 6) maximum width in the base. Presence of an apical process in the paramere facing the base of the gonocoxite, and covered with several setae on the dorsal surface ( Fig. 4 ). Aedeagus simple, with an acute apex. Lateral lobe 310 ± 21 (n = 6) long and 32 ± 3 (n = 6) wide. Genital pump 198 ± 12 (n = 6) long. Genital filament thick, with 378 ± 26 (n = 6) length and 10 ± 1 (n = 6) width and present dilatation in its apical quarter, tapering in its final portion, which is pointed ( Fig.5 ). Genital filament/genital pump ratio 1.91:1 (n = 6).

Material examined: Brazil. Rio Grande do Sul: Porto Alegre , Lageado neighborhood, forest in the Jacques da Rosa Road (30 ◦ 12 Ɩ 05,02 ƖƖ S and 51 ◦ 08 Ɩ 49,57 ƖƖ W) – three males, 30.XI.2010, 07.XII.2010 and 26.IV.2011 (Souza GD and Flores CF cols.) ; Caçapava do Sul, II District Santa Bárbara, riparian forest of the stream

G.D. Souza et al. / Revista Brasileira de Entomologia 59 (2015) 85–88 87

Santa Bárbara (30 ◦ 32 Ɩ 52,83 ƖƖ S and 53 ◦ 37 Ɩ 15,70 ƖƖ W) – two males, 08.I.2006 (Souza GD) and 15.II.2008 (Souza GD, Souza IPF and Souza RPF cols.); Santa Cruz do Sul (29 ◦ 41 Ɩ 03,5 ƖƖ S and 52 ◦ 26 Ɩ 42,4 ƖƖ W) – one male, 09. V.12 (Loebens JA, Cardoso DG and Bavaresco FP cols.) .

The specimens were deposited in the Coleção Científica do Núcleo de Flebotomíneos, Seção de Reservatórios e Vetores, Instituto de Pesquisas Biológicas – Laboratório Central de Saúde Pública do Rio Grande do Sul: numbers 445; 751; 1058; 1059; 1060; 1061 .

Figures

Figs. 1–3. Evandromyia gaucha. Male:(1) Flagellomeres XI, XII, XIII, XIV, scale bar= 100µm; (2) palpi, scale bar= 50 µm. (3) Wing, scale bar =30 µm.

Figs. 4–5. Evandromyia gaucha. Male: (4) Terminalia, scale bar =50 µm (5) Genital pump and genital filaments, scale bar =50 µm;.