Pseudeurybata guatemalensis, Marshall, S. A., 2016

Marshall, S. A., 2016, Revision of the genus Pseudeurybata Hennig (Diptera, Micropezidae, Taeniapterinae), Zootaxa 4132 (2), pp. 254-268 : 262-264

Pseudeurybata guatemalensis new species

Figs. 32–35

Description. 15–18mm. Head pollinose except for shining epicephalon. Frontal vitta broad anteriorly, barely distinguishable from narrow orbital strips, postocellar part of vitta evenly tapered and slightly wider than ocellar triangle at posteriormost point. One lower fronto-orbital seta. Base of arista yellow and slightly swollen; arista bare. Clypeus bare and shining.

Thorax mostly reddish brown, notum darker than pleuron; dorsocentral areas almost black, forming diffuse longitudinal vittae that extend from scutum across the scutellum. Postpronotal lobe slightly paler than adjacent scutum, with a weak dark ridge at posteroventral margin. Anepisternum and anterior part of katepisternum with very sparse small dark setae.

Fore leg black, except for orange coxal and femoral bases, and tarsomere one which is white almost to the apex. Mid and hind femur mostly reddish brown but with a distinct orange preapical band and a black apex; hind femur more reddish on basal third. Mid tibia and tarsus black; hind tibia black, hind tarsus black other than tarsomere one which is white except at apex. Wing infuscated, slightly darker along leading edge; halter knob dark.

Abdomen with pleuron entirely dirty white to blackish (both types are pinned from alcohol, and seem discolored). Female oviscape broad and brown basally, abruptly tapered and black distally, 3.5X length of T6. Spermathecal ducts smooth, paired spermathecae elongate-cylindrical, striate, stems long and sinuate with multiple tapered process on distal quarter; single spermatheca elongate and small with a swollen base.

Male unknown.

Type material. Holotype (♀♀, UVGC). GUATEMALA. Guatemala, Puerta Parada, 1850m, 22.vii–3.vii.2013, J. C. Schuster.

Paratypes. GUATEMALA. Solola. San Lucas, Toloman, Cerro de Oro, 2235m, 23.June.2005 (1♀, DEBU); Puerta Parada, 12–19.iv.2014, J.Schuster, bosque cipres (1♀, in alcohol, DEBU); Suchitepequez, volcan Atitlan, Ref. El Quetzal, 1670m, 6–10 and 13–16.vi.2015, Z.H. Falin, F. Carrillo, FIT, cloud forest (3♀, DEBU).

Etymology. The specific name of Pseudeurybata guatemalensis reflects the fact that the entire type series is from Guatemala. This is the only Pseudeurybata known from Guatemala.

Distribution. Guatemala.

Remarks. Pseudeurybata guatemalensis is distinctive for its combination of banded and distally dark mid and hind femora, and the white fore and hind first tarsomeres.

Figures

FIGURES 32 – 37. Pseudeurybata guatemalensis and Pseudeurybata rufilabris. 32 – 35. P. guatemalensis. 32,35, holotype female, habitus lateral (oviscape removed). 33, head and anterior thorax, dorsal view; 34, spermathecae and associated structures, lateral view. 36 – 37. P. rufilabris, lectotype female. 36, head and anterior thorax, laterodorsal view; 37, habitus, laterodorsal.