Galeopsomyia druparum Hansson sp.nov.

(Figs 43, 94, 95, 1001)

Diagnosis (female). Antennal clava solid (Fig. 1001); genal carina absent; mesoscutellum (Fig. 94) with strong reticulation, meshes elongate, submedian grooves indistinct but traceable, slightly curved, wide apart and diverging towards posterior part; hind coxa without carina along posterior margin; propodeum (Fig. 94) with a strong median carina that expands gradually towards posterior part; gaster (Fig. 94) 3.3× as long as wide, medio-basal Gt 1 with a rectangular incision.

Female holotype: length of body 2.1mm (paratypes 2.2–2.3mm).

Scape yellowish-brown, pedicel and flagellum dark brown. Head golden-green, antennal scrobes black, clypeus dark brown. Thoracic dorsum golden-green. Legs with fore and mid coxae black, hind coxa golden-green; trochanters pale brown; femora black with metallic tinges; tibiae yellowish-brown; T1–3 yellowish-brown, T4 brown. Petiole black. Gaster with Gt 1-2 golden-green, Gt 3-5 golden-purple, Gt 6-7 golden-green; gonoplac black.

Antenna with solid clava. Face below level of toruli with weak reticulation, clypeus smooth, frons with strong reticulation, antennal scrobes with weak reticulation; without genal carina. Vertex with strong reticulation.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, slightly elongate on midlobe; midlobe without median groove, with eight setae ±in one row close to notauli. Mesoscutellum with strong reticulation, meshes elongate; submedian grooves indistinct but traceable, slightly curved, wide apart and diverging towards posterior part. Dorsellum with strong sculpture. Propodeum with a strong median carina that expands gradually towards posterior part; callus with two setae. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation; hind coxa with carina along posterior margin. Fore wing with four setae on dorsal surface of submarginal vein; speculum open towards base of wing; costal setal row unbroken.

Petiole transverse. Gaster elongate; medio-basal Gt 1 with a rectangular incision, and with weak reticulation and shiny, remaining tergites with strong reticulation.

Relative measurements: head length, dorsal view 20; head length, frontal view 33; POL 10; OOL 5; lateral ocellus diameter 3.5; head width 41; mouth width 14; malar space 12.5; eye length 18; scape length 15; scape width 3.5; pedicel+flagellum length 37; pedicel length 6.5; pedicel width, dorsal view 4; F1 length 6.5; F1 width 3.5; F2 length 5.5; F2 width 4; F3 length 5; F3 width 4; clava length 11.5; clava width 5; C3 length 4; spicule length 1; mesosoma length 54; mesosoma width 41; midlobe of mesoscutum length 22; mesoscutellum length 20; mesoscutellum width 20; median part of mesoscutellum width (measured medially) nm; median part of mesoscutellum, width in anterior part nm; median part of mesoscutellum, width in posterior part nm; lateral part of mesoscutellum, width (measured medially) nm; dorsellum length 3; propodeum length 7.5; costal cell length 33; costal cell width (measured at widest part) 2; marginal vein length 25; stigmal vein length 10; gaster length 98; gaster width 30; Gt 2 length (measured medially) 4.5; Gt 4 length (measured medially) 26.5; Gt 7 length (measured medially) 13; Gt 7 width (measured at base) 13; longest cercal seta length 10; shortest cercal seta length 5.

Male. Unknown.

Hosts. Reared from galls in young fruits of avocado (Persea americana) (Lauraceae).

Distribution. Costa Rica.

Material examined.

Holotype ♀ COSTA RICA, San José, Tarrazu, iii.1994, from young avocado fruit, R. Leon (NHMUK). Paratypes (2♀, MZUCR, NHMUK): 1♀ COSTA RICA, San José, Zurqui de Moravia, 10º02’58’’N, 84º00’57’’W, 1600m, iii.1995, P. Hanson; 1♀ COSTA RICA, Cartago, La Cangreja, 9º48’N, 83º58’W, 1950m, vii.1991, P. Hanson.

Etymology. From the Latin drupa = fruit, and the suffix - arum = from.