Psychoda iucunda, Wagner & Andrade & Gonçalves, 2022

Wagner, Rüdiger, Andrade, Rui & Gonçalves, Ana, 2022, Moth flies (Diptera, Psychodidae) from Portugal with descriptions of a new genus new species and additions to the fauna of the Iberian Peninsula, Zootaxa 5129 (1), pp. 37-59 : 55-57

Psychoda iucunda sp. nov.

Figures 31–41

Diagnose: A Psychodini species, antenna with scape, pedicel and 14 flagellum segments, segment 11 without distal neck, 12–14 small globular; segments 2–10 with Y-shaped ascoids; thorax and legs without notable features; wings in both sexes with a brush of dark setae on a strong basal part of costa; subcosta short curved just below the brush, medial fork basal of radial fork, R 5 ends in wing tip; male terminalia with broad hypandrium, stronger sclrotized along the apical edge, gonostyli longer than gonocoxites; epandrium with sligly wider than long with a single pseudospiracular opening; epandrial appendages strong almost straight, as long as epandrium with single retinaculum; aedeagus asymmetric with siccle-shaped sclerite on one and an elongate sclerite on the other side; female similar, brush on costa smaller, terminalia similar to Psychoda gemina with a black streak in the middle.

Material: 1♂, holotype, Braga, Esposende, Fonte Boa e Rio Tinto , 26 October 2014; paratypes, 1♂, 1♀, with holotype ; 4♂, Braga, Barcelos, Areias de Vilar e Encourados , 4 October 2014 ; 1♂, 1♀, Porto, Vila Nova de Gaia, Avintes , 29 March 2014 ; 1♂ Braga, Barcelos, Gilmonde , 16 April 2014 ; 1♂, Porto, Valongo, Campo e Sobrado , 24 October 2014 .

Additional material: 8♂, 14♀, Braga, Esposende, Fonte Boa e Rio Tinto , 26 October 2014 ; 4♀, Braga, Barcelos, Areias de Vilar e Encourados , 4 October 2014 ; 1♂, 2♀, Beja, Moura, Sobral da Adiça 15 November 2014 ; 1♂, 1♀, Porto, Vila do Conde, Malta e Canidelo , 14 June 2013 ; 1♂, 2♀, Braga, Barcelos, Gilmonde , 25 December 2012; 1♂, 9♀, ibidem 14 April 2013; 2♂, 4♀, ibidem 16 April 2014 ; 3♂, 1♀, Bragança, Espinhosela 9 September 2014 ; 1♂, 6♀, Porto, Valongo, Campo e Sobrado , 24 October 2014; 4♀, ibidem 10 March 2014.

Description: Male. Head with eye-bridge with of four facet rows, no interocular suture; distance between the eyes equivalent to one facet diameter. Antenna with short scape, globular pedicel and 14 flagellomeres, basal flagellomeres bottle-shaped, apical four decreasing in size, apical 3 globular. Relative length of scape, pedicel and flagellomeres: 33–20–37–36–37–39–38–38–38–38–28–20–13–9–7–6. Absolute length: 0.09–0.05–0.10–0.09–0.10– 0.10–0.10–0.10–0.10–0.10–0.07–0.05–0.03–0.02–0.02– 0.02 mm. Flagellomeres 1 to 10 with a pair of Y-shaped ascoids. Palpus with relative segment length: 27–40–52–48; absolute length: 0.07–0.11–0.14– 0.13mm; apical segment not striated.

Wing translucent; length 1.73 mm, width 0.72 mm; 2.42 times longer than greatest width. Costal vein thickened at base and appears ‘broken’ where on the distal section are inserted a large number of flattened strong black setae (androconia?). These setae reach the base of the media and cubitus veins. Sc short, crescent shaped, not connected to costa. Radius fork at about middle of wing, medial fork in basal third.

Abdomen with front edge of epandrium deeply curved; an opening at about middle. Proctiger vase–shaped, fleshy with three small apical lobes. Epandrial appendages strong, almost straight with one large terminal retinaculum; 1.5 times longer than epandrium. Hypandrium broad with a thin apical dark sclerotized edge. Gonocoxites slightly longer than wide, gonostyli slightly bent more than two times longer than gonocoxites, distal part thinner and slightly curved. Gonocoxal bridge sinuous, at middle with an outgrowth towards the aedeagus. Ejaculatory apodeme laterally compressed, in ventral view racket–shaped; from the side arms of the racket unequally sized sclerites project, forming a ventrally open tube. On the right side another lobe evolves and is connected (probably jointed) to a large sickle–shaped sclerite.

Female. Head similar to male. Distance between eyes approximately 1.2 facet diameters. Antenna with ascoids similar to male. Relative length of scape, pedicel and flagellomeres: 28–22–33–32–36–38–35–37–37–32–30–27– 15–9–9– apical segment missing; absolute length: 0.07–0.06–0.08–0.08–0.09–0.10–0.09–0.09–0.09–0.08–0.08– 0.07–0.04–0.02– 0.02 mm. Palpus as in males; relative length: 38–44–46–61; absolute length: 0.10–0.11– 0.12–0.16 mm.

Wing translucent, length 2.13 mm, width 0.80 mm; 2.67 times longer than wide. Costal veins similar to males, but from the broader section long circular setae arise that are not turned back towards the wing base but appear to be part of the crown of setae of the wing.

Terminalia wider than long, roundish with two apical lobes; between the lobes with a pencil-shaped sclerite. The basal half with a median black streak; inner sclerite triangular basally with a median fold backwards.

Etymology: The presence of the species is surprising and its morphology exiting.

Comment: Ps. iucunda superficially resembles Ps. gemina , but the brush of setae at the base of costa, more obvious in males, makes the difference. Male terminalia differ between species by a broad hypandrium in the new species and a thin in P. gemina ; the cross sclerite is similar in both species. Females of both species are as well similar, the genital plate with a black streak medially in the proximal half.

Figures

FIGURES 31–41. Psychoda iucunda sp. nov.: 31 wing female; 32 wing male; 33 base of male wing; 34 base of male antenna; 35 tip of male antenna; 36 aedeagus, hypandrium and styles ventral view; 37 aedeagus ventral view, 38 epandrium with appendages; 39 dorsal bridge between gonocoxites; 40 male genitalia lateral; 41 female genital plate.