Triorla spatulata Castro, Bravo & Vieira, 2016

Castro, Ivan, Bravo, Freddy & Vieira, Rodrigo, 2016, Four new species of Triorla Parks (Diptera, Asilidae, Asilinae) from Brazil, Revista Brasileira de Entomologia 60 (2), pp. 137-149 : 144-146

publication ID	https://doi.org/ 10.1016/j.rbe.2015.11.013
persistent identifier	https://treatment.plazi.org/id/A52B87D8-FFB0-FFFB-D87C-F8EAFEC2D8BB
treatment provided by	Felipe
scientific name	Triorla spatulata Castro, Bravo & Vieira
status	sp. nov.

Treatment

Triorla spatulata Castro, Bravo & Vieira sp. nov.

Figs. 3 View Figures 1–5 , 8 View Figures 6–10 , 15 View Figures 11–15 , 54–59 View Figures 54–59

Diagnosis: eight ocellar setae; face and front covered with yellow and brown pruinescence; anepisternum with tuff of black and white setae on dorsal margin; 12 pronotal macrosetae; tergite I with three to four black macrosetae; hypandrium subtriangular with median-apical spatulate project ( Fig. 56 View Figures 54–59 ); epandrium in lateral view, with slight concavity ( Fig. 59 View Figures 54–59 ); gonostylus bilobed distally ( Fig. 57 View Figures 54–59 ); ejaculatory apodeme without spines ( Fig. 58 View Figures 54–59 ); aedeagal prongs with two subapical dilations, median tube shorter than lateral ( Fig. 58 View Figures 54–59 ).

Description. Male. Head ( Figs. 3 View Figures 1–5 , 8 View Figures 6–10 ). Eight ocellar setae on apex; eight to ten brown setae on lateral tubercular, undulated at apex; nine black postocular macrosetae; 12 black orbital macrosetae. Dorsal portion of mystax with 13 black macrosetae, median and ventral region covered with yellowish macrosetae; three to five subvibrissal black macrosetae; inferior occipital setae white and branched; 14–18 orbital macrosetae.Basal half of palpus with white and brown setae; apical half with black setae. Face and front covered with yellow and brown pruinescence; face wide at antennal level, as wide as one eye in frontal view. Front with transverse spot. Scape 2.0× the length of pedicel, with yellow setae on ventral surface, black on dorsal surface; postpedicel 1.5× the lengths of scape and pedicel together. Gena dark brown, lateral width of gena 0.20× the lateral length of compound eye.

Thorax. 12 pronotal macrosetae; postpronotal lobe with black and white setae, undulated at apex; two notopleural macrosetae; two black supraalar macrosetae; one to two pairs of postalar macrosetae; eight apical scutellar macrosetae; discal setae black; two acrostichal setae; two pairs of black dorsocentral macrosetae. Postalar wall with yellow setae. Anepisternum with tuff of black and white setae on dorsal margin; basalar sclerite with one macroseta. Katepisternum with some white setae. Katepimeron glabrous.

Wing. ( Fig. 15 View Figures 11–15 ); membrane yellowish. Halters brown.

Abdomen. Tergite I with three to four black macrosetae; posterior margin without fringe, remaining surfaces covered with black and white setae. Lateral margins of tergite II with brown setae anteriorly and white setae posteriorly; dorsal margin with short black setae. Lateral margins of tergite III with brown setae anteriorly and white and undulated setae posteriorly. Tergite VI white, with triangular median spot. Tergite VII dark brown to black, with lateral white stripe.

Terminalia ( Figs. 54–59 View Figures 54–59 ). Gonocoxite with posteroventral projection with acute extension ( Fig. 55 View Figures 54–59 ). Gonostylus bilobed distally,

cerc dorsal lobe longer than ventral ( Fig. 57 View Figures 54–59 ). Gonostylus 3.0× longer than wide ( Fig. 57 View Figures 54–59 ). Aedeagal prongs with two subapical dilations, median tube shorter than lateral ( Fig. 58 View Figures 54–59 ). Ejaculatory apodeme without spines ( Fig. 58 View Figures 54–59 ). Hypandrium subtriangular with median-apical spatulate project ( Fig. 56 View Figures 54–59 ).

Size. Body length 18–22 mm (N = 05).

Female. Unknown.

Etymology. This name refers to the spatulate shape of the hypandrial apex.

Geographical records. BRAZIL: States of Amazonas , Pará, São Paulo, Mato Grosso do Sul .

Type material. Holotype: BRASIL, São Paulo, Araraquara [21 ◦ 47 Ɩ 38 ƖƖ S, 48 ◦ 10 Ɩ 27 ƖƖ W], xii.1946. J. Lane col. (♂ MZUSP).

Paratypes: BRASIL, Amazonas, Manaus, Campus da UFAM [Universidade Federal do Amazonas] [3 ◦ 8 Ɩ 2 ƖƖ S, 60 ◦ 1 Ɩ 7 ƖƖ W] 30.vi.1979. J.A. Rafael col. (1♂ INPA) ; [ BRASIL], Pará, Gorotire, Xingú [7 ◦ 50 Ɩ 57 ƖƖ S, 51 ◦ 50 Ɩ 17 ƖƖ W] 18.iv.1983. W. Overal col. (1♂ MPEG) ; [ BRASIL], Mato Grosso [do Sul], Maracaju [21 ◦ 37 Ɩ 7 ƖƖ S, 55 ◦ 10 Ɩ 2 ƖƖ W] v.1937. M.E.S. Bras (1♂ MZUSP) ; [ BRASIL], Mato Grosso do Sul, Corumbá, Fazenda Alegria [19 ◦ 0 Ɩ 53 ƖƖ S, 57 ◦ 38 Ɩ 59 ƖƖ W] 22.iv.1994. Tadeu & Gorayeb col (1♂ MZUSP) .