Galeopsomyia cecropiae Hansson, 2023

Hansson, Christer & Hanson, Paul E., 2023, HYMENOPTERA: CHALCIDOIDEA), 5 The genus Galeopsomyia Girault by Christer Hansson * & Paul E. Hanson **, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 269-271

Galeopsomyia cecropiae Hansson sp.nov.

( Figs 3, 332, 333, 762, 967)

Diagnosis (female). Antennal clava solid ( Fig. 762); genal carina present; mesoscutellum ( Fig. 332) with weak reticulation on median part and shiny, with a weak median groove, lateral parts with strong reticulation, meshes elongate, submedian grooves slightly curved and diverging towards posterior part; dorsellum with median carina; propodeum ( Fig. 332) with strong irregular carinae and reticulation, callus with three setae; gaster ( Fig. 332) 2.1× as long as wide, medio-basal Gt1 with short longitudinal carinae laterally, tergites with weak reticulation; weakly metallic species ( Figs 332, 333).

Female holotype: length of body 1.4mm (paratypes 1.3–1.7mm).

Scape yellowish-brown with dorsal edge brown, pedicel pale brown, flagellum brown. Head dark brown to black with golden-green and blue tinges, clypeus dark brown. Mesoscutum black with metallic tinges; mesoscutellum and propodeum golden-green. Legs with fore and mid coxae dark brown, hind coxa black with metallic blue tinges; trochanters brown; femora dark brown; tibiae yellowish-brown; T1–3 yellowish-brown, T4 brown. Petiole black. Gaster with Gt1 with attachment point of petiole yellowish-brown, anterior two-thirds golden-green and posterior one-third metallic purple, remaining tergites metallic purple; 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; with genal carina. Vertex with strong reticulation outside ocellar triangle, with wrinkled sculpture inside ocellar triangle.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe; midlobe without median groove, with ten scattered adnotaular setae. Mesoscutellum with weak reticulation on median part and shiny, with a weak median groove, lateral parts with strong reticulation, meshes elongate; submedian grooves slightly curved and diverging towards posterior part; with six setae scattered over lateral parts. Dorsellum with weak sculpture and shiny, with median carina. Propodeum with a strong and narrow median carina; with strong irregular carinae and strong reticulation; callus with three setae. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation. Fore wing with three setae on dorsal surface of submarginal vein; speculum closed; costal setal row broken.

Petiole very short, just a narrow band. Gaster ovate-elongate; medio-basal Gt 1 with short longitudinal carinae laterally; tergites with weak reticulation.

Relative measurements: head length, dorsal view 17; head length, frontal view 27; POL 7.5; OOL 4.5; lateral ocellus diameter 3.5; head width 35; mouth width 11.5; malar space 10.5; eye length 16; scape length 13; scape width 3; pedicel+flagellum length 36; pedicel length 5; pedicel width, dorsal view 3.5; F1 length 6; F1 width 3; F2 length 5.5; F2 width 3.5; F3 length 5.5; F3 width 3.5; clava length 13.5; clava width 4.5; C3 length 4.5; spicule length 1; mesosoma length 43; mesosoma width 31; midlobe of mesoscutum length 17; mesoscutellum length 18; mesoscutellum width 16; median part of mesoscutellum width (measured medially) 7.5; median part of mesoscutellum, width in anterior part 6.5; median part of mesoscutellum, width in posterior part 8.5; lateral part of mesoscutellum, width (measured medially) 3; dorsellum length 2.5; propodeum length 7; costal cell length 23; costal cell width (measured at widest part) 1.5; marginal vein length 20; stigmal vein length 7; gaster length 58; gaster width 28; Gt 2 length (measured medially) 6; Gt 4 length (measured medially) 8; Gt 7 length (measured medially) 10; Gt 7 width (measured at base) 9; longest cercal seta length 13; shortest cercal seta length 5.

Male. Length of body of body 1.2mm.

Antenna ( Fig. 967) with scape widest medially; plaque dark brown and situated medially; dorso-basal whorls of long setae present on F1–F4 and ventro-basal whorls of long setae on C1–C2. Gaster short ovate; Gt 1 with weak reticulation and shiny, remaining tergites with strong reticulation. Otherwise as in female.

Relative measurements: head length, dorsal view 15; head length, frontal view 27; head width 35; mouth width 10.5; malar space 10; eye length 15; scape length 11.5; scape width 4.5; plaque length 4; pedicel length 5; pedicel+flagellum length 46; F1 length 4; F1 width 3.5; F2 length 5; F2 width 3.5; F3 length 6.5; F3 width 3; F4 length 7; F4 width 3; clava length 16; clava width 3; mesosoma length 43; mesosoma width 30; gaster length 40; gaster width 21.5; longest subbasal seta on F1, length 28.

Hosts. Reared from blister-like leaf galls induced by an unidentified Cecidomyiidae on Cecropia obtusifolia ( Urticaceae ) ( Fig. 3).

Distribution. Costa Rica.

Material examined.

Holotype ♀ COSTA RICA, Alajuela, Estación Biológica A. Brenes, San Ramón , 900m, iv.2011, from Cecropia obtusifolia leaf galls, P. Hanson ( NHMUK) . Paratypes: 5♀ 2♂ with same label data as holotype ( MZLU, MZUCR, NHMUK) .

Etymology. Named after the host plant of the gall from which this species was reared.