Goniaspis truncata ( Malloch, 1913 )

Mlynarek, Julia J. & Wheeler, Terry A., 2009, Revision of the Neotropical genus Goniaspis Duda (Diptera: Chloropidae), Zootaxa 2033, pp. 26-40 : 37-38

Goniaspis truncata ( Malloch, 1913)

(Figs. 22–23)

Hippelates truncata Malloch 1913: 247 (type locality: Guatemala: Cacao, Trece Aguas, Alta V Paz). Goniaspis truncata: Sabrosky, 1941a: 27 .

Description: Total length 1.7–2.4 mm. Overall color black; frontal triangle black, shining, extending to anterior margin of frons with slightly convex to straight margins; ocellar tubercle black, shining; frons black, as long as wide; cephalic setae dark, fronto-orbital setae weakly developed; gena black, microtomentose, 0.1 times eye height; postgena slender, black, microtomentose; face black; scape and pedicel yellow, first flagellomere reniform, yellow, arista black, slender, pubescence as long as width of arista at base; palpus, proboscis and clypeus black.

Scutum black, shining, punctate, microtomentose just anterior to scutellum, as long as wide; scutellum black, 1.7 times as wide as long, microtomentose, apical scutellar bristles strong, on small tubercles on dorsal margin of scutellum, lateral scutellar bristles longer than surrounding setae; thoracic pleurites shining black. Legs mostly yellow, coxae and femora black; hind tibial spur apical, 0.8 times length of first tarsal segment; femoral organ 2 rows, one of 3 small tubercles and one of 4; tibial organ oval, yellow, 0.2 times length of tibia. Wing hyaline, ratio of costal sectors C1: C2: C3: C4 – 1: 1.3: 1.4: 0.6; halter white.

Abdomen black, sparsely microtomentose, syntergite 1+2 darker than tergites 3–5, tergites 3–5 yellow medially; syntergite 1+2 slightly longer than tergites 3 and 4 combined.

Male postabdomen (Figs. 22–23): epandrium higher than long in lateral view, wider than high, with parallel sides in posterior view, with sparse setae; surstylus short, wide, parallel sided with broadly rounded apex, surstylus with sparse short setae; cercus broad, rounded, ventral projection large and rounded, cercus with sparse setae and one long posteroventral bristle, cerci separated by semi-circular ventral excavation; distiphallus weakly sclerotized.

Type material: Holotype (apparently Ƥ but abdomen damaged). labelled “25.4 Cacao / Trece Aguas”, “Alta V Paz / Guatemala ”, “Schwarz& / Barber Coll”, “ Type / No. 15961 / U.S. N.M.”, “ Hippelates / truncata / Malloch (type)” ( USNM). Paratypes: GUATEMALA: AltaV. Paz, Cacao Trece Aguas, 25.iv, Schwarz and Barber (13, USNM); MEXICO: Vera Cruz, Motzoropago, 11.ii.1892, H. Osborn (1Ƥ, USNM); Vera Cruz, San Rafael, iii.1914, C.H.T. Townsend (1Ƥ, USNM).

Other material examined: BELIZE: Mtn. Pine Ridge, 1000’, falls sweeps, 14.i.1991, S.A. Marshall (13, 1Ƥ, DEBU); Toledo District, Blue Creek (16˚12΄N 89˚3΄W), Malaise trap, 23.i.1982, A.T. Finnamore (1Ƥ, LEM); COSTA RICA: Alajuela, Penas Blancas, 700m, rain forest, 18.viii.1986, L. Masner (1Ƥ, CNC); Alajuela, San Pedro de la Tigra, cacao, i. 1990, 200m, Malaise trap, P. Hanson (13, LEM); Cartago, Dulce Nombre, Vivero Linda Vista, vi–viii.1993, 1400m, Malaise trap, P. Hanson (1Ƥ, LEM); Cartago, Pejibaye, 24–25.iii.1987, Malaise trap in old field and agricultural area, W.E. Steiner (13, USNM); Heredia, Braulio Carrillo N.P., Est. El Ceibo, 400–600m, xii.1989, R. Aguilar and M. Zumbado, 527700, 256500 (13, INBio); Alajuela, San Carlos, P. N. Arenal, Sector la Peninsula, 600m, 11–26.v.1999, J.D. Gutiérrez, Red de Golpe, L N 271500_453800, #57151 (23, INBio); Guanacaste: Est. Pitilla, 9km S Sta. Cecilia, 700m, 6–19.ix.1993, P. Rios, L N 330200_380200 (1Ƥ, INBio); same data except iii.1991 (1Ƥ, INBio); same data except ii–iii.1993 (2Ƥ, INBio); same data except iii.1995, L N 329950_380450 (1Ƥ, INBio); EL SALVADOR: Santa Tecla, x.1965, N.L.H. Krauss (33, USNM); Santa Tecla, 6.vi.1958, L.J. Bottimer (1Ƥ, USNM); same except 11.vi.1958 (1Ƥ, USNM); same except 4.vi.1958 (1Ƥ, USNM); San Salvador, 9.vi.1958, L.J. Bottimer (1Ƥ, USNM); GUATEMALA: Yepocapa 1948–1949, H.T. Dalmat (23, 1Ƥ, USNM); Escuintla, 20.viii.1975, N.L.H. Krauss (13, USNM); Retalhuleu, 0 5.v.1964, D.W. Hamilton (13, USNM); Los Amates, 18–28.ii.1905, J.S. Hane (1Ƥ, USNM); HONDURAS: Puerto Castilla, 06.v.1926, 13.v.1926 and 21.vi.1926, R.H. Painter (33, USNM); La Ceiba, 24.x.1916, F.J. Dyer (1Ƥ, USNM); MEXICO: Cordoba, 3 mi. E, 01.i.1941, G.E. Bohart (1Ƥ, USNM); Cordoba, vii.1965, N.L.H. Krauss (1Ƥ, USNM); Vera Cruz, Tampico, 25.ii.1972, F. Parker and D. Miller (1Ƥ, USNM), Vera Cruz, Ocotal Chico, 600m, 04–05.v.1985, W.N. Mathis (13, USNM); NICARAGUA: Santa Maria de Ostuma, xi.1959, N.L.H. Krauss (1Ƥ, USNM); 31 mi N of Esteli, 22.viii.1972, G.F. and S. Hevel (13, USNM).