Galeopsomyia perasphondyliae 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 : 439-441

Galeopsomyia perasphondyliae Hansson sp.nov.

( Figs 578, 579 , 992 , 1093)

Diagnosis (female). Antennal clava solid (Fig. 1093); genal carina strong and long, reaching up to level of middle of eye; mesoscutellum ( Fig. 578 ) with strong reticulation on median part and isodiametric meshes, lateral parts with strong reticulation, meshes elongate, submedian grooves indistinct, straight and diverging towards posterior part; dorsellum without median carina; propodeum ( Fig. 578 ) with strong reticulation, callus with ten setae; gaster ( Fig. 578 ) elongate, 3.1× as long as wide, medio-basal Gt1 with a strong transverse carina dorsally, Gt1-4 with a smooth median line, tergites with strong reticulation.

Female holotype: length of body 2.5mm (paratype 2.2mm). Scape yellowish-white, pedicel and flagellum pale brown (antenna appears bleached by light). Face below level of toruli metallic bluish-purple, clypeus yellowish-brown, frons metallic-bluish-green, antennal scrobes black; vertex black with blue-green tinges. Thoracic dorsum metallic bluish-green. Legs with fore and mid coxae dark brown, hind coxa metallic bluish-green; trochanters yellowish-white; femora with basal half dark brown and apical half yellowish-white; tibiae and tarsi yellowish-white. Gaster with Gt 1 black with blue tinges, remaining tergites black; gonoplac black.

Antenna with solid clava. Face below level of toruli with weak reticulation, clypeus smooth, frons rugose, 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 very weak median groove in posterior one-third, and with ten scattered adnotaular setae. Mesoscutellum with strong reticulation on median part and isodiametric meshes, lateral parts with strong reticulation, meshes elongate; submedian grooves indistinct, straight and diverging towards posterior part; with three setae scattered over lateral parts. Dorsellum with strong sculpture, without median carina. Propodeum with a strong and wide median carina; with strong reticulation; callus with ten setae. Fore and mid coxae with weak reticulation, hind coxa with strong reticulation. Fore wing with five setae on dorsal surface of submarginal vein; speculum open below; costal setal row unbroken.

Petiole not visible. Gaster elongate; medio-basal Gt 1 with a strong transverse carina dorsally; tergites with strong reticulation, Gt 1-4 with a smooth median line.

Relative measurements: head length, dorsal view 22; head length, frontal view 41; POL 12; OOL 6; lateral ocellus diameter 4; head width 51; mouth width 15; malar space 16; eye length 21.5; scape length 17; scape width 4.5; pedicel+flagellum length 47; pedicel length 8; pedicel width, dorsal view 4; F1 length 7; F1 width 4.5; F2 length 7; F2 width 4.5; F3 length 6.5; F3 width 5; clava length 16; clava width 6; C3 length 5.5; spicule length 1; mesosoma length 66; mesosoma width 47.5; midlobe of mesoscutum length 23.5; mesoscutellum length 25; mesoscutellum width 24.5; median part of mesoscutellum width (measured medially) 8; median part of mesoscutellum, width in anterior part 7; median part of mesoscutellum, width in posterior part 10; lateral part of mesoscutellum, width (measured medially) 4.5; dorsellum length nm; propodeum length 7; costal cell length 35; costal cell width (measured at widest part) 2.5; marginal vein length 31; stigmal vein length 9; gaster length 110; gaster width 35.5; Gt 2 length (measured medially) 6.5; Gt 4 length (measured medially) 21; Gt 7 length (measured medially) 11; Gt 7 width (measured at base) 11; longest cercal seta length 10; shortest cercal seta length 5.

Male. Length of body 1.7–2.0mm.

Antenna ( Fig. 992 ) with scape gradually expanding towards apex and widest at apex; plaque pale brown and situated close to apex; dorso-basal whorls of long setae present on F1–F4 and C1, and a ventro-basal whorl of long setae on C1. Gaster elongate. Otherwise as in female.

Relative measurements: head length, dorsal view 18; head length, frontal view 36; head width 46; mouth width 13.5; malar space 14; eye length 18.5; scape length 17; scape width 5; plaque length 7; pedicel length 6.5; pedicel+flagellum length 60; F1 length 4.5; F1 width 5; F2 length 6; F2 width 5; F3 length 8.5; F3 width 4.5; F4 length 9; F4 width 3.5; clava length 22; clava width 3.5; mesosoma length 62; mesosoma width 43.5; gaster length 80; gaster width 28; longest subbasal seta on F1, length 23.

Hosts. According to the label data this species was reared from Perasphondylia odoratum ( Diptera Cecidomyiidae ). This name does not appear in the most recent catalogue of Cecidomyiidae ( Gagné & Jaschhof 2021) ; however, one of the host plants of P. reticulata Möhn is Chromolaena odorata ( Asteraceae ) so presumably the label refers to the bud gall induced by this cecidomyiid on this plant; P. reticulata is recorded from Bolivia as well as Brazil, El Salvador and Mexico.

Distribution. Bolivia.

Material examined.

Holotype ♀ BOLIVIA: Santa Cruz, v.1971, from Perasphondylia odoratum (NHMUK) . Paratypes: 1♀ 2♂ with same label data as holotype ( NHMUK) .

Etymology. Named after the host.

Figures

Figs 576–579. Galeopsomyia pensada, holotype ♀ – (576) habitus dorsal view; (577) habitus lateral view. Galeopsomyia perasphondyliae, holotype ♀ – (578) habitus dorsal view; (579) habitus lateral view.

Figs 989–992. Head incl. antennae/body, lateral view, paratype ♂. (989) Galeopsomyia nebulosa; (990) G. nitida; (991) G. octava; (992) G. perasphondyliae.