Psathyromyia (Psathyromyia) barretti Alves & Freitas, 2015, sp. nov.
Creators: name: Alves, Veracilda Ribeiro
name: Freitas, Rui Alves de
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Psychodidae
Psathyromyia
Psathyromyia barretti

description: Psathyromyia (Psathyromyia) barretti sp. nov. (Figs. 1–24)    
 Description. Male (holotype): general color light brown. Body length (thorax + abdomen) 2234 (2201; n = 19).   
 Head (Fig. 1): height from vertex to tip of clypeus 329.1 (337.3; n = 19) long, 329.1 (343; n = 19) width; eye: length 227.8 (227.8; n = 19), width 126.6 (138.1; n = 19), interocular distance 82.3 (84.8; n = 19), 15.8 facet diameters (15.1; n = 19); interocular suture incomplete. Clypeus length 63.3 (88.1; n = 19), width 82.3 (67.3; n = 19); cibarial arch complete. Antenna: flagellomere lengths: I 303 (268.4; n = 19), II 133.3 (126.8; n = 19), III 130.3 (125.5; n = 19), XIII 66.7 (63; n = 8), XIV 54.5 (52.3; n = 8); ascoids visible on flagellomeres I–XII; posterior spur does not reach the base of the flagellomere, except in flagellomere I (Figs. 4–6 and 12–13); flagellomere I with the ascoids implanted on the apical third of the segment with their apices slightly before the papilla (Fig. 4); one papilla implanted apically on flagellomeres I–III (Figs. 4–6 and 12–13); antennal formula: flagellomeres I–XII 2 and XIII–XIV 0. Palpus segments length: I 42.4 (42.9; n = 19), II 90.9 (98.4; n = 19), III 109 (110.1; n = 17), IV 48.5 (54.2; n = 17), V160.6 (167.9; n = 15); palpal formula: 1.4.2.3.5; Newstead’s sensillae (Newstead’s spines) located in the apical two-third of the III palpus segment (Fig. 11). Labrum-epipharynx 206.1 (203.8; n = 19). Pharynx unarmed, finely striated posterior two-third. Labrum: labial sutures united (Figs. 1 and 2).   
 Thorax: ventro-cervical sensilla absent; pre-escutum, scutum, pronotum, paratergite, apex of scutellum contrasts strongly with pleura and coxae without sclerotization. Length 500 (497.8; n = 19); pleura with 12 (8–12; n = 19) anepisternal superior setae; 2 (2–4; n = 19) proepimeral setae; setae on the anterior margin of the katepisternum is absent. Wing (Fig. 18): 1830 (2010; n = 18) long, 526 (570.5; n = 18) wide; length/width ratio 3.5: 1.0; veins R5 1186 (1171; n = 9); alpha 463.6 (474.2; n = 14); beta 250.6 (265.3; n = 14); gamma 125.3 (151; n = 13); delta 162.9 (197.7; n = 14); pi 98.9 (102; n = 9). Length of femora, tibiae, basitarsi, and tarsomeres II + III + IV + V: foreleg 852.1 (929.2; n = 14), 1,429 (1,423; n = 14), 1,045 (1,006.1; n = 13), 904 (854; n = 13); midleg (888.4; n = 10), (1799.4; n = 10), (1152; n = 10), (965.4; n = 10); hindleg (874.3; n = 10), (1745; n = 11), (1126.1; n = 11), (919.8; n = 8).   
 Abdomen: 1,734 (1867; n = 19) long. Terminalia (Fig. 21): gonocoxite 348.1 (338.4; n = 19) long; 63.3 (70.3; 63.3–85.4; n = 19) wide; without a tuft of setae. Gonostylus 177.2 (173.6; n = 19) long; with four spines: an apical, the upper external preapical, the lower external and the internal, in the middle of the structure, at the same level. Paramere is simple, digitiform, length 221.5 (219.2; n = 19), narrowing abruptly in its distal half along the ventral margin; distal half with fine setae, as shown. Conical aedeagus short and truncate at apex. Epandrial lobe subcylindrical (= lateral lobe), 253.2 (266.2; n = 19) long. Sperm pump 196.2 (187.2; n = 19); ejaculatory ducts length 398.8 (407.4; n = 19), or 2.0 (2.2; n = 19) times the length of the sperm pump (Fig. 22).   
 Female (Figs. 2–3, 14–17, and 20): Two specimens are as described by Barrett et al. (1996), with the following additional observations. Eye: length 215.2, width 145.6; clypeus length 101.3, width 82.3; Newstead’s sensillae located in the apical two-third of the III palpus segment (Fig. 17). Labrum-epipharynx (LE) 243.5. Posterior third of the pharynx is armed with about 20 transverse combs of minute teeth. Length of wing vein sections: R5 1,158.2; pi 84.7.   
Type material: Twenty male and two female specimens were examined. Holotype, twelve male and two female paratypes from Brazil, state of Amazonas, Tefé municipality, tree trunks, Barrett and Santos (cols.) on 4 and 6/ix/91. Seven males captured in Coari municipality, Amazonas state, Brazil on 16/x/2011, tree trunks, W. P. Tadei fieldwork team (cols.).  
The type material will be deposited in the following institutions: Coleção de Invertebrados do Instituto Nacional de Pesquisas da Amazônia, Manaus (Holotype, 13 male paratypes and two female paratypes), Coleção de Flebotomíneos / Centro de Pesquisas René Rachou, Belo Horizonte/ MG (four male paratypes) and Entomological Collection of the Smithsonian Institute / Walter Reed Biossystematic Unit, Suitland, MD /EUA (two male paratypes).  
Etymology: This species is named to Dr. Toby Vincent Barrett for his contributions to medical entomology in the Amazon region.
description: Published as part of Alves, Veracilda Ribeiro & Freitas, Rui Alves de, 2015, Description of a new species of Psathyromyia Barreto (Diptera, Psychodidae, Phlebotominae) from Amazonas state, Brazil, pp. 205-209 in Revista Brasileira de Entomologia 59 (3) on page 207, DOI: 10.1016/j.rbe.2015.07.005, http://zenodo.org/record/13194716