Gonaspis lurida Mlynarek and Wheeler

Mlynarek, Julia J. & Wheeler, Terry A., 2009, Revision of the Neotropical genus Goniaspis Duda (Diptera: Chloropidae), Zootaxa 2033, pp. 26-40 : 31

Gonaspis lurida Mlynarek and Wheeler , sp. n.

(Fig. 10–11)

Description: Total length 1.8–2.3 mm. Overall color yellow; frontal triangle yellow, shining, extending to anterior margin of frons, with straight to slightly convex margins; ocellar tubercle brown, shining; frons yellow, as long as wide; cephalic setae pale, fronto-orbital setae well-developed; gena pale yellow, microtomentose, 0.1 times eye height; postgena slender, yellow and microtomentose; face yellow; scape and pedicel yellow, first flagellomere reniform, yellow, arista brown, slender, pubescence twice as long as width of arista at base; palpus, proboscis and clypeus yellow.

Scutum yellow, shining to sparsely microtomentose, punctate, microtomentose just anterior to scutellum, slightly longer than wide, pronotum brown at insertion of head; scutellum yellow, 2 times as wide as long, rugose, apical scutellar bristles strong, on small brown tubercles on dorsal margin of scutellum, lateral scutellar bristles longer than surrounding setae; thoracic pleurites mostly shining yellow; dorsal margin of anepimeron and lateral region of postscutellum shining to slightly microtomentose. Legs yellow; hind tibial spur apical, 0.75 times length of first tarsomere; femoral organ 2 rows of 3 small tubercles; tibial organ oval, yellow, 0.15 times length of tibia. Wing hyaline, ratio of costal sectors C1: C2: C3: C4 – 1: 1.4: 1.6: 0.7; halter white.

Abdomen yellow, microtomentose, anteromedial portion of syntergite 1+2 same color as rest of tergites; syntergite 1+2 as long as tergites 3 and 4 combined.

Male postabdomen (Figs. 10–11): epandrium higher than long in lateral view, wider than high in posterior view, with sparse setae; surstylus short, wide, parallel sided with broadly rounded apex, surstylus with sparse short setae; cercus narrow, long, triangular, ventral projection large and rounded, cercus with sparse setae and one long posteroventral bristle, cerci separated by a wider than high ventral excavation; distiphallus weakly sclerotized.

Type material: Holotype 3: “ BELIZE: Toledo District, Blue / Creek (16˚12’N 89˚3’W) / Malaise trap / 23.i.1982, A.T. Finnamore”, “ HOLOTYPE / Goniaspis / lurida / Mlynarek & Wheeler” ( LEM). Paratypes: BRAZIL: Nova Friburgo, Liminar Pogo Felo, sweep near falls (dirty), 26.i.1990, S.A. Marshall (1Ƥ, LEM); Bahia, Itabuna, xi.1971 (13, USNM); TRINIDAD: Port of Spain, 11.vii.1957, J.W. Boyes (1Ƥ, CNC).

Etymology: From the Latin luridus (pale yellow), referring to the color of the specimens.