Goniaspis subaequalis Malloch 1913
Creators: name: Mlynarek, Julia J.
name: Wheeler, Terry A.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chloropidae
Goniaspis
Goniaspis subaequalis

description: Goniaspis subaequalis (Malloch, 1913)
(Figs. 20–21)
Hippelates subaequalis Malloch 1913: 257 (type locality: Trinidad: Montserrat). Goniaspis subaequalis: Sabrosky, 1941a: 27.
Goniaspis subequalis: Sabrosky and Paganelli, 1984: 16.
Description: Total length 1.4–2.0 mm. Overall color yellow; frontal triangle yellow, shining, extending to anterior margin of frons with slightly convex margins; ocellar tubercle brown, shining; frons yellow, 1.2–1.3 times as long as wide; cephalic setae pale, fronto-orbital setae well-developed; gena yellow, microtomentose, 0.1 times eye height; postgena slender, yellow, shining; face yellow; scape and pedicel yellow, first flagellomere reniform, yellow, first and second segments of arista yellow, third segment brown, slender, pubescence as long as width of arista at base; palpus, proboscis and clypeus yellow.
Scutum yellow, shining, punctate, microtomentose just anterior to scutellum, as long as wide, pronotum black at insertion with head; scutellum yellow, 1.8 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 yellow. Legs yellow; hind tibial spur apical, 0.7 times length of first tarsal segment; femoral organ 2 rows of 3 small tubercles; tibial organ oval, yellow, 0.25 times length of tibia. Wing hyaline, ratio of costal sectors C1: C2: C3: C4 – 1: 1.2: 1.4: 0.6; halter white.
Abdomen yellow, sparsely microtomentose, syntergite 1+2 paler than the other tergites, desclerotized; syntergite 1+2 slightly longer than tergites 3 and 4 combined.
Male postabdomen (Figs. 20–21): epandrium higher than long in lateral view, as wide as high 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 excavation with indentations; distiphallus weakly sclerotized.
Type material: Holotype Ƥ: “June / 29.05”, “ Montserrat / Trinidad WI”, “Aug. Busck / Collector”, “ Type / No. 15967 / U.S. N.M.”, “ Hippelates / subaequalis / Malloch (Type)”. Paratypes: TRINIDAD: Montserrat, 29.vi.1905, A. Busck (23, 4Ƥ, USNM).
Other material examined: BELIZE: Toledo District, Blue Creek (16˚12’N 89˚3’W), Malaise trap, 25.i.1982, A.T. Finnamore (2Ƥ, LEM); BRAZIL: Rio de Janeiro, Grajau, 30.xi.1963, 10.vii.1964, H.S. Lopes (13, 1Ƥ, USNM); COLOMBIA: Buenaventura, 2.xi.1950, Michelbacher and Ross (1Ƥ, USNM); COSTA RICA: Puntarenas, Peninsula Osa, 5km N Puerto Jimenez, 10m, Malaise trap, xi–xii.1990 and vi.1992, P. Hanson (13, 8Ƥ, LEM); same except xi–xii.1990 (13, DEBU); Bataan, 16.vi.1951, O.L. Cartwright (13, 6Ƥ, USNM); Limon, 4km NE Bribri, 50m, vii–ix.1990, P. Hanson (13, LEM); Turrialba, 600–700m, 12.viii.1975, N.L.H. Krauss (33, 1Ƥ, USNM); Cartago, Pejibaye, 24–25.iii.1987, Malaise trap in old field and agricultural area, W.E. Steiner (23, USNM); Guanacaste Prov., 14km NE Tiliran, 05.vi.1973, Erwin and Hevel (13, 1Ƥ, USNM); Palmar, 21.vii.1959, C. Stephens (13, USNM); Limon Prov., Amubri, A.C. Amistad, 70m, 1–19.ii.1994, G. Gallardo, L S 385500_578000, #2687 (63, 6Ƥ, INBio); PANAMA: Las Cumbres, 29.xi.1981, H. Wolda (1Ƥ, USNM); same data except 12.xi.1981 (1Ƥ, USNM); Corozal, iii.1912, A. Busck (13, 3Ƥ, USNM); Summit Gardens, vii.1967, F.S. Blanton (1Ƥ, USNM); Monte Lirio, 28.viii.1923, R.C. Shannon (13, USNM); same data except 6.iv.1923 (13, USNM); Tabernilla, Canal Zone, A. Busck (1Ƥ, USNM); Summit, xi.1946, N.L.H. Krauss (13, USNM); Trinidad Rio, 16.iii.1912, A. Busck (13, 2Ƥ, USNM); Flat rock above Juan Mina, 5mi up Chagres R., 24.viii.1918, H. Morrison (1Ƥ, USNM); PERU: Colonia Perene, Rio Perene, 18mi NE La Merced, Junin, 3.i.1955, E.I. Schlinger and E.S. Ross (1Ƥ, USNM); TRINIDAD: Arena Forest, 2–27.vi.1955, T. Aitken (1Ƥ, USNM); VENEZUELA: San Esteban, xii.1939, P.J. Anduze (13, USNM); Aragua, Puerto de Cata, 10–11.vi.1976, A.S. Menke and D. Vincent (1Ƥ, USNM); Sucre, 7km NW San Vicente, 23.iii.1982, G.F. and J.F. Hevel (1Ƥ, USNM).
FIGURES. 20–25. Male genitalia. 20–21. Goniaspis subaequalis. 20. lateral. 21. posterior. 22–23. Goniaspis truncata. 22. lateral. 23. posterior. 24–25. Goniaspis versicolor. 24. lateral. 25. posterior. Scale bars = 0.1 mm.
description: Published as part of Mlynarek, Julia J. & Wheeler, Terry A., 2009, Revision of the Neotropical genus Goniaspis Duda (Diptera: Chloropidae), pp. 26-40 in Zootaxa 2033 on pages 36-37, DOI: 10.5281/zenodo.186327