Galeopsomyia mesana Hansson, 2023

Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 385-386

Galeopsomyia mesana Hansson sp.nov.

( Figs 500, 501 , 833 , 984 )

Diagnosis (female). Antennal clava solid, flagellum short ( Fig. 833 ); genal carina present; mesoscutellum ( Fig. 500 ) with median part with very weak reticulation and shiny, lateral parts with strong reticulation, meshes elongate, with an indistinct median groove in anterior one-third, submedian grooves diverging towards posterior part, with outer margin absent; dorsellum with median carina; propodeum ( Fig. 500 ) with strong irregular carinae and weak reticulation, callus with eight setae; gaster ( Fig. 500 ) 1.9× as long as wide, tergites with strong reticulation, strongly metallic golden-red. Male flagellum ( Fig. 984 ) with dorso-basal whorls of long setae present only on F1; scape different from male of similar G. lasallei .

Female holotype: length of body 2.0mm (paratypes 1.9mm).

Scape yellowish-brown, pedicel brown, flagellum dark brown. Head golden-green with red tinges, clypeus dark brown. Mesoscutum with sidelobes golden-green, midlobe golden-red; mesoscutellum and propodeum golden-red. Legs with coxae golden-green with red tinges; trochanters, femora and tibiae yellowish-brown; T1–3 yellowish-brown, T4 brown. Petiole black. Gaster golden-red; gonoplac black.

Antenna with solid clava. Face below level of toruli with strong reticulation, clypeus smooth, frons rugose, antennal scrobes with weak reticulation; with genal carina. Vertex with weak reticulation outside ocellar triangle, with wrinkled sculpture inside ocellar triangle.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe; midlobe with parts close to notauli rugose with 12 scattered setae, with a median groove in posterior half. Mesoscutellum with median part with very weak reticulation and shiny, lateral parts with strong reticulation, meshes elongate, with an indistinct median groove in anterior one-third, submedian grooves diverging towards posterior part, with outer margin absent, lateral parts with ten scattered setae. Dorsellum with weak sculpture and shiny, with median carina. Propodeum with a wide median carina, anteriorly expanding into a cup; with strong irregular carinae and weak reticulation; callus with eight setae. Fore and hind coxae with strong reticulation, mid coxa with weak reticulation. Fore wing with 4&5 setae on dorsal surface of submarginal vein; speculum closed; costal setal row unbroken.

Petiole transverse with strong sculpture on dorsal part. Gaster ovate-elongate; tergites with strong reticulation.

Relative measurements: head length, dorsal view 23; head length, frontal view 38; POL 10; OOL 5.5; lateral ocellus diameter 4.3; head width 51; mouth width nm; malar space 12; eye length 23; scape length 18; scape width 3.5; pedicel+flagellum length 43; pedicel length 7; pedicel width, dorsal view 4; F1 length 7; F1 width 5; F2 length 6.5; F2 width 5; F3 length 6; F3 width 5; clava length 14; clava width 6; C3 length 5; spicule length 1; mesosoma length 62; mesosoma width 44; midlobe of mesoscutum length 23; mesoscutellum length 24; mesoscutellum width 21; median part of mesoscutellum width (measured medially) 7.5; median part of mesoscutellum, width in anterior part 7.5; median part of mesoscutellum, width in posterior part 10; lateral part of mesoscutellum, width (measured medially) 3.5; dorsellum length 3; propodeum length 9; costal cell length 30; costal cell width (measured at widest part) 3; marginal vein length 30; stigmal vein length 11; gaster length 76; gaster width 41; Gt 2 length (measured medially) 7.5; Gt 4 length (measured medially) 15; Gt 7 length (measured medially) 7; Gt

7 width (measured at base) 11; longest cercal seta length 12; shortest cercal seta length 5.

Male. Length of body 1.7mm.

Antenna ( Fig. 984 ) with scape with almost equal width throughout; plaque dark brown and extending along major part of scape; dorso-basal whorls of long setae present only on F1. 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 22; head length, frontal view 36; head width 46; mouth width 16; malar space 11; eye length 22; scape length 18.5; scape width 5; plaque length 13.5; pedicel length 7; pedicel+flagellum length 51; F1 length 4.5; F1 width 4; F2 length 6.5; F2 width 4; F3 length 7; F3 width 3.5; F4 length 7; F4 width 3.5; clava length 18; clava width 4; mesosoma length 59; mesosoma width 40; gaster length 55; gaster width 33; longest subbasal seta on F1, length 27.5.

Hosts. Unknown.

Distribution. St Vincent.

Material examined.

Holotype ♀ ST VINCENT, Charlotte, La Soufrieri, Eastern Slope , 9.vii.1976, from rainforest, J.S. Noyes ( NHMUK) . Paratypes (2♀ 1♂, NHMUK) : 1♀ ST VINCENT, Charlotte, Montreal , 8.vii.1976, from edge of rainforest, J.S. Noyes ; 1♀ 1♂ ST VINCENT, St. George, Belmont , 6.vii.1976, from wasteground, J.S. Noyes .

Figures

Figs 500–503. Galeopsomyia mesana, holotype ♀ – (500) habitus dorsal view; (501) habitus lateral view. Galeopsomyia methea, holotype ♀ – (502) habitus dorsal view; (503) habitus lateral view.

Figs 827–833. Head incl. antennae, lateral view ♀ – (827) Galeopsomyia majalis; (828) G. medrosa; (829) G. maya; (830) G. matearis; (831) G. meleadis; (832) G. menoris; (833) G. mesana.

Figs 983–985. Head incl. antennae/body, lateral view, paratype ♂. (983) Galeopsomyia majalis; (984) G. mesana; (985) G. mora.