Galeopsomyia transcarinata (Gahan)

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 : 206-207

Galeopsomyia transcarinata (Gahan)

( Figs 680, 681 )

Galeopsomopsis transcarinatus Gahan 1919:168 . Holotype ♀ (USNM type no. 22303), examined through images. U.S.A. (Arizona).

Galeopsomyia transcarinata (Gahan) , ( LaSalle 1994:176).

Diagnosis (female). Antennal clava solid ( Fig. 681 ); lateral ocelli close to eyes, POL 1.7× OOL; mesoscutellum ( Fig. 680 ) with median part with very weak reticulation and shiny, lateral parts with strong reticulation and with white setae scattered all over parts, submedian grooves indistinct; dorsellum with median carina; propodeal callus with ten setae; medio-basal Gt 1 with carinae laterally, absent dorsally ( Fig. 680 ).

Female paratype: length of body 1.9mm.

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

Antenna with a weak constriction between C1 and C2. Face below level of toruli with weak reticulation, clypeus smooth, frons rugose, antennal scrobes with weak reticulation; with a short and weak genal carina close to mouth opening. Vertex with weak reticulation outside ocellar triangle, with wrinkled sculpture inside ocellar triangle; with a carina between posterior ocelli in posterior part.

Mesoscutum with strong reticulation, meshes isodiametric on sidelobes, elongate on midlobe; midlobe with a weak median groove, and with ten scattered adnotaular setae. Mesoscutellum with weak reticulation on median part and without median groove, lateral parts with strong reticulation, meshes elongate; submedian grooves distinct, straight and diverging towards posterior part, outer margin indistinct in anterior half; with ten setae scattered over lateral parts. Dorsellum with weak sculpture, with median carina. Propodeum with a strong median carina that is gradually expanding towards posterior part; with strong irregular carinae; callus with ten 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 open below; costal setal row unbroken.

Petiole transverse. Gaster elongate; medio-basal Gt 1 with dorsal part rounded, with carinae laterally; tergites with strong reticulation.

Relative measurements: head length, dorsal view 20.5; head length, frontal view 35; POL 9.5; OOL 5.5; lateral ocellus diameter 4; head width 46; mouth width 14; malar space 10.5; eye length 20; scape length 16; scape width 4; pedicel+flagellum length 46; pedicel length 6; pedicel width, dorsal view 4; F1 length 6.5; F1 width 4; F2 length 7.5; F2 width 4.5; F3 length 7; F3 width 4.5; clava length 16; clava width 5.5; C3 length 5.5; spicule length 1; mesosoma length 56; mesosoma width 41; midlobe of mesoscutum length 24; mesoscutellum length 21.5; mesoscutellum width 21; median part of mesoscutellum width (measured medially) 8.5; median part of mesoscutellum, width in anterior part 7.5; median part of mesoscutellum, width in posterior part 9.5; lateral part of mesoscutellum, width (measured medially) 4; dorsellum length 3; propodeum length 6; costal cell length 30; costal cell width (measured at widest part) 2.5; marginal vein length 26; stigmal vein length 11; gaster length 81; gaster width 38; Gt 2 length (measured medially) 8.5; Gt 4 length (measured medially) 13.5; Gt 7 length (measured medially) 10; Gt 7 width (measured at base) 12; longest cercal seta length 12; shortest cercal seta length 5.

Male. Unknown.

Hosts. Reared from galls induced by the alfalfa gall midge, Asphondylia websteri Felt ( Diptera : Cecidomyiidae ) ( Gahan 1919). The host plant in Arizona was undoubtedly alfalfa ( Fabaceae : Medicago sativa ), although the flower-fruit galls produced by A. websteri have subsequently been reported from other Fabaceae and even a species of Simmondsiaceae ( Gagné & Wood 1988) . The latter authors report Galeopsomyia sp. from A. websteri galls on Parkinsonia aculeata ( Fabaceae ).

Distribution. U.S.A. (Arizona) ( Gahan 1919).

Material examined. Holotype female examined through images; paratype female in NHMUK.

Figures

Figs 680–683. Galeopsomopsis transcarinatus Gahan, holotype ♀ (USNM type no. 22303) – (680) habitus dorsal view; (681) habitus lateral view. Trichoporus viridicyaneus Ashmead, lectotype ♀ (USNM type no. 8099) – (682) habitus dorsal view; (683) habitus lateral view.