Hirtodrosophila pilosa, Frech-Telles & Valente-Gaiesky & Gottschalk, 2023

Frech-Telles, Marcos Henrique, Valente-Gaiesky, Vera Lúcia da Silva & Gottschalk, Marco Silva, 2023, Three new Neotropical species of Hirtodrosophila Duda, 1923 (Diptera: Drosophilidae), Revista Brasileira de Entomologia (e 20230083) 67 (4), pp. 1-15 : 2-5

publication ID	https://doi.org/ 10.1590/1806-9665-RBENT-2023-0083
publication LSID	lsid:zoobank.org:pub:CDFD3E69-16A5-41B5-94E8-5BA798791EB8
persistent identifier	https://treatment.plazi.org/id/43318793-FFA7-4175-EC50-34293D1DFAB9
treatment provided by	Felipe
scientific name	Hirtodrosophila pilosa
status	sp. nov.

Treatment

Hirtodrosophila pilosa n. sp.

urn:lsid:zoobank.org:act:D66D90A1-0514-4416-88AB-FC4D05695BF8 ( Figs. 1 View Figure 1 , 2 View Figure 2 , 9a View Figure 9 , 10 View Figure 10 )

Material examined.

Holotype:male, labelled “BRA [= Brazil] - RJ [= State of Rio de Janeiro] – PARNA [= National Park ] de Itatiaia (22°25’35.57”S, 44°37’14.6”W) Data: 21.xii.2020 - 04.i.2021 Col.: Telles MHF; Vicenzi N OBS.: Armadilha [= Trap] Malaise ” ( Fig. 10 View Figure 10 ), “ Hirtodrosophila pilosa n. sp. Frech-Telles, Valente-Gaiesky, Gottschalk, ♂ Holotype ”. GoogleMaps

Diagnosis.

Flies yellow with brown marks. Thick acrostichal setulae in eight irregular rows anteriorly and six at the height of the anterior dorsocentral setae. Wings with a modest apically pointy darkened costal lappet. Phallus tubular, projected ventrally, slim; phallotrema section oblong, narrowing near apex in lateral view.

Description.

Holotype. Head ( Fig. 1a, 1c View Figure 1 ): yellow, with brown marks.Eyes reddish, pubescent.Face yellow, dark brown near facial carina; facial carina white, prominent.Antennal scape brown; pedicel basally brown, apically lighter; flagellomere 1 brown, basally yellow, compressed, mango-shaped; arista with five (left) or four (right) dorsal branches, one ventral branch, and terminal fork.Frons light yellow and brown; fronto-orbital plate brown, with yellow band adjacent to eye; fronto-orbital setae black; a rc frorb s situated anteriorly to pc frorb s; distance between pc frorb s and a rc frorb s = 0.03 mm, between pc frorb s and p rc frorb s = 0.08 mm, and between a rc frorb s and p rc frorb s = 0.10 mm; frontal vitta brown, lighter near ptilinal suture; frontal triangle brown; ocellar triangle dark brown, prominent; postocellar setae crossing. Genae light yellow, black at bases of vibrissae, with small, black spot under eye.Palpus dark brown to black, large; labellum light brown to dark brown. Thorax ( Fig. 1b, 1c View Figure 1 ): yellow, with brown marks. Scutum yellow with brown marks; v-1 greyish; v-2 yellow, fine; v-3 brown; v-4 yellow; v-5 brown; v-6 yellow; brown spots present at bases of dorsocentral setae and setulae, except for the anterior fifth of scutum, sometimes partially fused to each other; postpronotum light yellow; thick acrostichal setulae in eight irregular rows on the first third of scutum and six on the posterior two thirds; acrostichal setulae larger and thicker in mid and dorsocentral rows; anterior dorsocentral setae about half as long as posterior dorsocentral setae; longitudinal distance between ipsilateral dorsocentral setae about half of cross distance; anterior dorsocentral setae placed slightly closer to transversal suture than to posterior end of scutum. Scutellum yellow, darker at bases of setae and medial portion near anterior margin; basal scutellar setae parallel, curved inwards; apical scutellar setae curved inwards. Pleura yellow and brown; proepisternum brown; anepisternum yellow, with brown band on dorsal margin; anepimeron mostly brown, with some small, yellow areas near margins; katepisternum brown; meron brown. Legs yellow. Wings ( Fig. 1f View Figure 1 ): hyaline; faint, darker patch present bellow costal lappet and along R 4+5. R 4+5 and M 1 parallel; R 2+3 slightly curved to costal at its tip. Halter light, with darker stem. Indices: C = 2.16, ac = 3.05, hb = 0.67, 4c = 1.27, 4v = 2.52, 5x = 2.35, M = 0.83, prox. x = 0.50; measurements: length = 2.25 mm, width = 0.99 mm. Abdomen ( Fig. 1d, 1e View Figure 1 ): tergites glossy; T 1 brown; T 2 brown, with a pair of yellow patches sub-laterally; T 3 brown, with two pairs of yellow spots sub-laterally; T 4 yellow, with caudal brown band, which is interrupted sub-laterally and triangularly enlarged medially; T 5 and T 6 similar to T 4. Sternites tan. Intersegmental membranes light. Terminalia ( Fig. 2 View Figure 2 ): epandrium as wide as long, with microtrichia and eight upper and two lateral setae; ventral lobe large, broad without microtrichia, with approximately 5–6 long setae. Cerci not fused to epandrium, with microtrichia and very long setae. Subepandrial sclerite squarish. Surstyli wide, with conspicuous setation: 5 prensisetae in line, 3 setae in the same line as prensisetae, and 10 inner and 7 outer setae. Hypandrium squarish, longer than wide, almost as large as epandrium. Pregonite large, fused to hypandrium, medially not fused to each other, with a seta near postgonite. Postgonites thick, with setae near the fusion with pregonite. Phallapodeme straight, slim and short, 1/2 as long as phallus. Body length: 2.29 mm.