Galeopsomyia atrata 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 : 239-240

Galeopsomyia atrata Hansson sp.nov.

( Figs 290, 291 , 751 )

Diagnosis (female). Antenna with distinct constriction between C1 and C2 ( Fig. 751 ), flagel- lum slender; genal carina present; mesoscutellum ( Fig. 290 ) with weak reticulation on median part, lateral parts with strong reticulation, meshes elongate, with a weak but complete median groove, submedian grooves distinct, straight and parallel; dorsellum with median carina; propodeum ( Fig. 290 ) with strong reticulation, callus with four setae; coxae dark brown ( Fig. 291 ); petiole very short, just a narrow band; gaster ( Fig. 290 ) 2.4× as long as wide, medio-basal Gt 1 with a sharp transverse edge dorsally, tergites with strong reticulation. Small species (1.8mm), head and mesosoma black ( Figs 290, 291 ).

Female holotype: length of body 1.8mm.

Scape yellowish-brown, pedicel pale brown, flagellum dark brown. Head black with weak metallic tinges. Mesosoma black. Legs with coxae dark brown, hind coxa with posterior part almost black; trochanters yellowish-brown; femora dark brown with apex yellowish-brown; tibiae and tarsi yellowish-brown, T4 pale brown. Petiole black. Gaster with Gt 1 black with metallic bluish tinges, Gt 2-5 dark brown, Gt 6-7 black; gonoplac black.

Antenna with distinct constriction between C1 and C2. Frons with strong reticulation, clypeus smooth, antennal scrobes with weak reticulation; with genal carina. Vertex with strong reticulation.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe; midlobe with a median groove in posterior half, and with six adnotaular setae in one row. Mesoscutellum with weak reticulation on median part, lateral parts with strong reticulation, meshes elongate; with a weak but complete median groove; submedian grooves distinct, straight and parallel; with six setae scattered over lateral parts. Dorsellum with weak sculpture, with median carina. Propodeum with a wide median carina that expands and is concave in posterior part; with strong reticulation; callus with four 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 elongate; medio-basal Gt 1 with a transverse sharp edge dorsally; tergites with strong reticulation.

Relative measurements: head length, dorsal view 18; head length, frontal view 31; POL 7.5; OOL 5; lateral ocellus diameter 3.5; head width 36; mouth width 11.5; malar space 9.5; eye length 17.5; scape length 14.5; scape width 3.5; pedicel+flagellum length 45; pedicel length 5; pedicel width, dorsal view 3.5; F1 length 6; F1 width 3.5; F2 length 6.5; F2 width 3; F3 length 7; F3 width 3; clava length 18; clava width 4; C3 length 7; spicule length 2; mesosoma length 46; mesosoma width 32; midlobe of mesoscutum length 17.5; mesoscutellum length 16.5; mesoscutellum width 16; median part of mesoscutellum width (measured medially) 6.5; median part of mesoscutellum, width in anterior part 6.5; median part of mesoscutellum, width in posterior part 6; lateral part of mesoscutellum, width (measured medially) 2.5; dorsellum length 3; propodeum length 7; costal cell length 24; costal cell width (measured at widest part) 1.5; marginal vein length 24; stigmal vein length 7; gaster length 78; gaster width 33; Gt 2 length (measured medially) 8; Gt 4 length (measured medially) 14; Gt 7 length (measured medially) 12; Gt

7

width (measured at base) 10; longest cercal seta length 15; shortest cercal seta length 5.

Male. Unknown.

Hosts. Unknown.

Distribution. Costa Rica.

Material examined.

Holotype ♀ COSTA RICA, Alajuela, Parque Nacional Volcan Arenal , 10º26’N, 84º43’W, 600m, 26.ii.2013, J.S. Noyes ( NHMUK).

Etymology. From the Latin atra = black, referring to colour on head and mesosoma.

Figures

Figs 288–291. Galeopsomyia assai, holotype ♀ – (288) habitus dorsal view; (289) habitus lateral view. Galeopsomyia atrata, holotype ♀ – (290) habitus dorsal view; (291) habitus lateral view.

Figs 751–759. Head incl. antennae, lateral view ♀ – (751) Galeopsomyia atrata; (752) G. baldosa; (753) G. bicolor; (754) G. bestis; (755) G. boria; (756) G. bravis; (757) G. bricenoi; (758) G. burreadis; (759) G. carbonis.