Japanagromyza chapadensis, Sousa & Couri, 2017

Sousa, Viviane R. de & Couri, Márcia S., 2017, Two new Japanagromyza Sasakawa (Diptera: Agromyzidae) from Brazil, Iheringia, Série Zoologia (e 2017032) 107, pp. 1-5 : 2-4

Japanagromyza chapadensis sp. nov.

( Figs 9-11 )

LSID: urn:lsid:zoobank.org:act:7F332025-59B0-434A- 8F6FACAD6303D39B

Type material. Holotype ♂, BRASIL, MT [Mato Grosso]: Chapada dos Guimarães ( Cerrado ) [Trilha da Pedra – final (mirante), 15°24’21.8”S 055°50’07.5”W], Malaise 22, 18.iv-02.vii.2012, Lamas, Nihei & eq. cols. ( MZUSP).

Etymology. The specific epithet refers to the type locality, Chapada dos Guimarães, where the holotype was collected.

Measurements. Male: Body length: 2.0 mm; wing length: 1.5 mm ( Fig. 9 ). Female: unknown.

Color. Frons mat black weakly shining, with basal half orange; fronto-orbital plate weakly shining black; upper shiny dark orbit touching the outer vertical and inner vertical setae; ocellar triangle black, greyish pollinose; lunule grey; face greyish brown; clypeus black subshining; gena dark brown; scape and pedicel light yellow; first flagellomere brown with some orange areas; arista brown; palpus yellow, with black setae apically; proboscis yellow; labellum yellow, with yellow setae; scutum and scutellum shining dark brown; postpronotum and all pleurae dark brown; suture between anepisternum and anepimeron light yellow; haltere entirely light yellow; calypters yellow, with margin and fringe black; wing clear, light yellow at base; legs yellow, mid and hind tibia and tarsi brown; pulvilli yellow; tergites 1+2 entirely yellow, tergite 3 yellow with a brown spot centrally, tergites 4-6 and terminalia entirely brown.

Head. Frons slightly visible above the eye margin in lateral profile; 2 reclinate ors and 2 inclinate ori, similar in size; interfrontal hair absent; orbital setulae slightly reclinate in one row; facial keel undifferentiated; eye height/ gena+parafacialia: 4; ocellar triangle long, endind before the second ori insertion level; lunule high and straight, about 15% of frons length; clypeus rounded; epistoma not visible; first flagellomere slightly long and finely pubescent; arista long, plumose, almost the same length of the vertical height of eye; vibrissa short, measuring about 1/3 the aristal length; one row of fine peristomals.

Thorax.Acrostichals in ten irregular rows; propleural present; prescutellar present; 0+2 dorsocentrals, all broken; 1 presutural; 1 intra-alar; 1 supra-alar; 2 post-alars; 1 postpronotal; posthumeral absent; 2 notopleurals, the anterior longer than the posterior one; 2 long and strong pairs of scutellar setae, 1 sub-basal, 1 apical; katepisternal with medium and fine setae and 1 long and strong posterior seta.

Wing. Subcostal vein joining R 1 before reaching the Costal and the distal margin of R 1 sinuous nearer at junction; wing tip nearer to R 4+5; Costal sections 2-4 in proportion: 0.5:0.33:0.16; R 4+5 and M 1 slightly recurved; ultimate section of CuA 1 0.75 the length of basal section; r-m basal to midpoint of dm.

Legs. Fore tibia without posterodorsal seta; mid tibia with two posterodorsal setae on middle third.

Male terminalia. Epandrium rounded with long setae; cercus long with long setae; surstylus long with about 44 strong spines; hypandrium long and Y-shaped; phallapodeme almost the same size length of the hypandrium; mesophallus sclerotized; distiphallus long, enlarged at base and bifurcated ( Figs 10, 11 ); ejaculatory apodeme very large, at its larger part about 4.9 times wider than the constricted area at base ( Fig. 12 ).

Distribution: state of Mato Grosso ( Brazil).

Remarks. This new species morphologically resembles J. arcuaria sp. nov. in wing length and color of the body, but can be differentiated by the grey lunule, face greyish brown, gena dark brown, scape and pedicel light yellow and first flagellomere brown with some orange areas. Besides, the male terminalia has the surstylus long with about 44 strong spines, hypandrium long and Y-shaped, distiphallus long, enlarged at base and bifurcated and ejaculatory apodeme very large.

Figures

Figs 9-12. Japanagromyza chapadensis sp. nov.:9, adult male lateral view; 10, phallus lateral view; 11, phallus ventral view; 12, ejaculatory apodeme.