Grotiusomyia rubii, Hansson, 2023

Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 58-59

Grotiusomyia rubii sp. nov.

Figs 18 , 44 , 70 , 92 , 109

Diagnosis. Mandibles black with apex yellowish-brown, with a large tooth at apex and with a row of small teeth above large tooth (as in Fig. 111 ); flagellum dark brown, 0.9× as long as width of mesoscutum, F4 0.7× as long as wide, apex of clava pointed ( Figs 18 , 70 ); frons between scrobes and eyes and vertex with strong reticulation ( Figs 92 , 109 ); occipital margin ±rounded ( Fig. 92 ); mesoscutum and mesoscutellum with same colour and reticulation ( Fig. 44 ); mesoscutellum convex; dorsellum flat, smooth and shiny, posterior margin ±evenly rounded with postero-median part slightly protruding with a few small dents; fore wing with seven setae in apico-dorsal part of costal cell, completely hyaline ( Fig. 18 ); fore and mid coxae black with metallic green tinges ( Fig. 18 ); gaster ( Fig. 44 ) 2.1× as long as wide; Gt 1 0.4× as long as length of gaster, dorsal surface smooth, posterior margin straight; Gt 6 0.1× as long as length of gaster with anterior part 2.1× as wide as width of posterior part, posterior margin straight with sharp edge.

Description (female holotype). Length 2.0 mm. Frons between scrobes and eyes and vertex with strong reticulation, scrobes smooth. Mandibles with a large tooth at apex and with a row of small teeth above large tooth. Occipital margin without edge or carina. Dorsellum flat, smooth and shiny, posterior margin ±evenly rounded with postero-median part slightly protruding with a few small dents. Propodeal callus with 12 setae. Fore wing with seven setae on dorsal surface of submarginal vein; with 16 admarginal setae; costal cell with 24 setae on ventral surface, partly in two rows, apico-dorsal margin with seven setae; speculum distinct and closed below. Gaster long ovate; Gt 1 smooth and shiny without sculpture, remaining tergites with weak reticulation; Gt 1 and Gt 6 with posterior margin straight.

Colour. Head metallic green to greenish-blue, scrobes black. Mandibles black with apex yellowish-brown. Antennae with scape yellowish-brown with apex brown, pedicel and flagellum dark brown. Mesosoma black with metallic green tinges. Legs with coxae black with metallic green tinges, trochanters and femora dark brown, tibiae and tarsi yellowish-brown, T4 dark brown. Gaster black with metallic tinges.

Relative measurements: head length, dorsal view 22; head length, frontal view 33.5; head width 46; POL 10; OOL 5.5; mouth width 16; malar space 6; eye length 24; lateral ocellus diameter 4; scape length 18; scape width 3.5; pedicel length 6.5; pedicel width. dorsal view 3.5; flagellum length 39; F1 length 7; F1 width 4.5; F2 length 5.5; F2 width 5; F3 length 5; F3 width 6; F4 length 4.5; F4 width 6.5; clava length 11.5; clava width 7; pronotum length 20; pronotum width 33; mesosoma length 69; mesosoma width 42; midlobe of mesoscutum length 25; mesoscutellum length 22; mesoscutellum width 22; propodeum length 14; hind tibia length 40; hind tibial spur1 length 4.5; hind tibial spur2 length 3; hind tarsus length 29; hind basitarsus length 8; fore wing length 112; fore wing width 51; costal cell length 36; costal cell width 3.5; marginal vein length 32; postmarginal vein length 14; stigmal vein length 12; Gt 1 length 28; Gt 6 length 8; Gt 6 width at base 20; Gt 6 width at apex 9.5; gaster length 74; gaster width 36.

Male. Unknown.

Distribution. Costa Rica.

Etymology. Named in honor of Didier Rubí, one of the collectors of the holotype.

Material. Holotype female: COSTA RICA, Heredia, Santo Domingo , INBio-Parque, 1-12.iv.2002, J.S. Noyes & D. Rubí ( NHMUK).

Figures

FIGURES 13–18. Grotiusomyia spp. nov., body in lateral view, females; 13 G. noyesi, paratype; 14 G. phalaros, paratype; 15 G. pilosa, paratype; 16 G. reticulata, paratype; 17 G. septentrionalis, holotype; 18 G. rubii, holotype.

FIGURES 44–50. Grotiusomyia spp.; 44–45. Body in dorsal view; 44 G. rubii sp. nov., female holotype; 45 G. septentrionalis sp. nov., female paratype; 46–50. Head+antenna in lateral view; 46 G. flavicornis Girault, female non-type; 47–48. G. nigricans, non-types; 47 female; 48 male; 49–50. G. albiclava sp. nov.; 49 female paratype; 50 male paratype.

FIGURES 65–70. Grotiusomyia spp. nov., head+antenna in lateral view; 65–66. G. phalaros; 65 female holotype; 66 male paratype; 67–68. G. pilosa; 67 male paratype; 68 female paratype; 69 G. reticulata, male paratype; 70 G. rubii, female holotype.

FIGURES 92–102. Grotiusomyia spp., females; 92–93. Vertex; 92 G. rubii sp. nov., holotype; 93 G. septentrionalis sp. nov., holotype; 94–102. Head in frontal view; 94 G. nigricans (Howard), non-type specimen; 95 G. albiclava sp. nov., holotype; 96 G. annesmithae sp. nov., holotype; 97 G. azofeifai sp. nov., paratype; 98 G. flavimacula sp. nov., holotype; 99 G. guanacastensis sp. nov., paratype; 100 G. hansoni sp. nov., holotype; 101 G. lascrucensis sp. nov., holotype; 102 G. jimenezi sp. nov., holotype.

FIGURES 103–112. Grotiusomyia spp. nov., females; 103–110. Head in frontal view; 103 G. leucaena, paratype; 104 G. nicoyae, paratype; 105 G. noyesi, holotype; 106 G. phalaros, paratype; 107 G. pilosa, paratype; 108 G. reticulata, paratype; 109 G. rubii, holotype; 110 G. septentrionalis, paratype; 111–112. Mandibles; 111 G. phalaros, paratype; 112 G. lascrucensis, holotype.