Pseudoptilolepis puri, Barbosa & Vieira & Couri, 2018

Barbosa, Leandro Silva, Vieira, Angelina Pimentel & Couri, Marcia Souto, 2018, New species of Pseudoptilolepis Snyder, 1949 (Diptera: Muscidae) from Brazil, Papéis Avulsos de Zoologia 58, pp. 1-4 : 2-4

Pseudoptilolepis puri sp. nov. ( Figs. 1-11 )

Diagnosis: Dorsocentrals setae 2+3, hind femur yellow, lower calypter with brownish border, syntergite 1+2 and side of tergite 3 light brown, other tergites dark brown, sternite 5 trapezoid, as high as wide, with posterior margin in a inverted“U” shape ( Fig. 5 ), cercal plate with slight median constriction ( Fig. 6 ).

General color: Brown and yellow; pleura and legs yellow ( Figs. 1-5 ).

Male: Holotype body length 4.94 mm; wing length: 5.70 mm; Paratypes length body: 3.67-6.05 mm, wing: 4.55-6.38 mm.

Head ( Figs. 1, 2 ): Light brown; head height about eight times the frons width; distance between eyes equal to the anterior ocellus diameter; fronto-orbital plate, parafacial, face and gena yellow; ocellar triangle black, with few weak setae behind; ocellar seta forward directed; postocellar seta about half the length of the ocellar seta; complete row of black postocular setae, progressively longer in length in ventral direction; row of brownish setae between the postocular row and the eye, from the ventral margin of the gena until it meets the postocular row on the middle of the eye height; other head setae black; antenna yellow, postpedicel about 2.5 times the length of pedicel; palpus yellow and very slender with setae; vibrissa long and strong.

Thorax ( Figs. 4, 5 ): Scutum with median brown vitta between dorsocentral row of setae; scutellum brown;

dorsocentral setae 2+3; prealar seta medium sized; three postpronotal setae; two notopleural setae, similar in size; two proepisternal setae, one strong; proepimeron with two setae, one strong; anepisternum with one anterior seta near to the anterior notopleural seta and a posterior row of setae; proepisternum without discal setulae. Wing clear. Legs: general color yellow, fore femur with a posterodorsal and a posteroventral row of setae; fore tibia with one posterior seta and two apical setae, one posteroventral and the other posterodorsal; mid femur with two posterior preapical setae; mid tibia with row of very short posterior setae on apical half, one submedian posteroventral seta, and one strong apical ventral seta; hind femur with complete rows of anterodorsal and anteroventral setae and one posterior preapical seta; hind tibia with three or four anterodorsal setae on middle third, two median anteroventral setae, and one strong apical ventral seta.

Abdomen: Syntergite 1+2 and sides of tergite 3 light brown, other tergites dark brown ( Fig. 3 ), sternite 5 trapezoid, as high as wide, with posterior margin in a invert- ed “U” shape ( Fig. 5 ) and cercal plate with slight median constriction ( Fig. 6 ).

Terminalia: Cercal plate in dorsal view, narrowed with apical end acute, with the narrowest area of the median constriction occupying the basal two thirds ( Fig. 7 ); surstylus discoid and concave; distiphallus forked with short and numerous setulae ( Fig. 8 ).

Female body length: 4.35-7.59 mm, wing length: 5.65-7.65 mm. Differs from male as follows: one pair of interfrontal seta, facial ridge with short, thin and pale setae directed upwardly opposite the median portion of the postpedicel; presutural acrostichal setae strong ( Figs. 1, 2 ).

Ovipositor ( Figs. 9, 10 ): Tergites and sternites slen- der, with microtrichia on the base of segment 6, cercus, epiproct and hypoproct. Tergite 6 with basal part round- ed and the apical pointed. Sternites 6 and 7 slender, and sternite 8 composed of two small plates each with two setae. Cercus setulose and rounded at apex, longer than the epiproct and somewhat larger than hypoproct.Three pear-shaped spermathecae ( Fig. 11 ).

Etymology: The specific epithet “puri”, noun in apposition, is named to the indigenous tribe that inhabited the area, the Indians Puri.

Type Locality: Parque Nacional de Itatiaia,Itatiaia , Rio de Janeiro state, Brazil.

Material examined: Holotype: male, Brasil, Rio de Janeiro, Itatiaia, PNI [Parque Nacional de Itatiaia ], Trilha Ruy Braga, 24-26.x.2014, Van Someren-Rydon. Paratypes: same locality of holotype. 2 females, 30.iii-13. iv.2014, Malaise; 2 females, Trilha Casa do Pesquisador, 23-26.v.2014, Van Someren-Rydon; 1 female, Trilha Ruy Braga, 13.iv-23.v.2014, Malaise; 2 females, Trilha Ruy Braga, 19.ix-24.x.2014, Malaise; 1 female, Trilha Casa do Pesquisador, 20.ix.2014, CDC verde; 1 female, Trilha Ruy Braga, 29.viii-24.ix.2014, Malaise; 5 males and 6 females, Trilha Ruy Braga, 19-22.ix.2014, Van Someren-Rydon; 1 male and 4 females,Trilha Ruy Braga, 24-26.x.2014,Van Someren-Rydon.

Remarks: The new species can be distinguished from all other known Pseudoptilolepis species by the shapes of sternite 5 and cercal plate. It runs to P. fluminensis in Couri & Carvalho (2002) key but differs by the abdomen color pattern ( Fig. 3 ), by the trapezoidal sternite 5 ( Fig. 6 ), as high as wide, with hind margin as an inverted “U” and the shape of the cercal plate ( Fig. 7 ). In the other hand, the new species runs to P. nigripoda in key of Schühli & Carvalho (2005) although differs by the hind femur yellow and terminalia morphology, especially the cercal plate.

Figures

Figures 1-5.Pseudoptilolepis puri sp.nov.(1) Head of female,frontal view;(2) Head of male, frontal view;(3) Abdomen of female, dorsal view;(4) Lateral habitus of male;(5) Lateral habitus of female.

Figures 6-11. Pseudoptilolepis puri sp.nov.(6) Sternite 5; (7) Cercal plate;(8) Aedeagus,lateral right view;(9) Ovipositor,ventral view;(10) Ovipositor,dorsal view; (11) Spermatheca.