Phytobia simpla, Sousa & Couri, 2017

Sousa, Viviane Rodrigues de & Couri, Márcia Souto, 2017, Phytobia (Diptera: Agromyzidae) from Brazil: new species, new record and a key to the Neotropical species, Zoologia (e 12308) 34, pp. 1-25 : 17

Phytobia simpla sp. nov.

http://zoobank.org/ A35CDA90-D510-4850-BD69-0687F789D749

Figs 4, 23, 84–86

Type material. Holotype ♂: BRASIL, RO [Rondônia]: Campo Novo. Fazenda Amorim 10°40’6”S, 63°29’0”W – 248m. Malaise trap, 03–15.xii.2011. Amorim, Ament & Riccardi cols. [ MZUSP] . Paratypes: same data as holotype, 2 ♂ [ MZUSP]; 2 ♂ [ MNRJ] ( Fig. 4) .

Description. Male. Body length 2.5 mm; wing length 2.0– 2.3 mm ( Fig. 23).

Female. Unknown.

Color. Frons and fronto-orbital plate mat black, with basal half reddish-brown; upper dark orbit touching ovt and ivt; ocellar triangle mat black, grey pollinose; lunule and face grey; clypeus mat black; gena brown; scape and pedicel orange; first flagellomere brown, orange apically; arista brown; palpus brown, with black setae apically; proboscis yellow; labellum yellow, with yellow setae; scutum brown, grey pollinose; scutellum greyish-black, postpronotum and notopleuron brown, grey pollinose; anepimeron brown; anepisternum greyish-brown; katepimeron, katepisternum and meron dark brown; haltere entirely yellow; calypters light yellow, with margin and fringe black; wing clear; legs brown; pulvilli yellow; abdomen entirely brown.

Head. Frons slightly visible above eye margin in lateral profile; 2 reclinate ors and 2 inclinate inwads ori, similar in size; orbital setulae erect in one row; facial keel undifferentiated; eye height/gena+parafacialia: 5; ocellar triangle short, ending before second ors; lunule high, about 20% of frons length; clypeus rounded; epistoma height 0.03 mm; first flagellomere rounded and finely pubescent; arista long, with same measure of vertical height of eye, minutely pubescent; vibrissa long and strong, measuring almost half of aristal length.

Thorax. Acr in eight irregular rows; prsc present; 1+3 dc, increasing in length from prescutellar; 2 npl, anterior longer than posterior. Wings. Wing tip between R 4+5 and M; R 4+5 and M erect; C sections in proportion: 2–4: 0.64:0.17:0.17; ultimate section of CuA 1 0.5 length of basal section; r-m distal to midpoint of dm. Legs. Fore tibia without pd; mid tibia with 1 pd on middle third.

Terminalia. Epandrium rounded, wider than heigh, with long setae; cercus long, about 2/3 height of epandrium and with long setae and distinct seta at apex; surstylus rounded with about 10 setae; hypandrium U-shaped with small projection on apex; phallapodeme about twice length of hypandrium; mesophallus simple and thin; distiphallus sclerotized with two medium arms ( Figs 84, 85); ejaculatory apodeme broad, at its broader part about 3.4 times wider than constricted area at base ( Fig. 86).

Distribution. Rondônia ( Brazil).

Etymology. The specific epithet refers to the simple shape of the phallus.

Remarks. Phytobia simpla sp. nov. is morphologically similar to P. multisetosa sp. nov. in the length of the wing and color of the scutum, brown grey pollinose. It can be distinguished by the frons mat black, with basal half brown close to lunule, surstylus rounded with about 10 setae and distiphallus sclerotized with two medium arms.