Grotiusomyia albiclava, 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 : 43-44

Grotiusomyia albiclava sp. nov.

Figs 3 , 21, 22 , 49, 50 , 78 , 95

Diagnosis. Female: mandibles yellowish-brown with a row of small teeth at apex (as in Fig. 112 ); flagellum 1.3× as long as width of mesoscutum, F4 1.8× as long as wide, apex of clava pointed, F1–F4 dark brown, clava white ( Figs 3 , 50 ); frons between scrobes and eyes and vertex with weak and engraved reticulation ( Fig. 95 ); occipital margin with a sharp carina throughout ( Fig. 78 ); mesoscutum and mesoscutellum with same colour and reticulation ( Fig. 21 ); mesoscutellum convex; dorsellum flat, smooth and shiny, posterior margin evenly rounded with small dents; fore wing with 3–6 setae in apico-dorsal part of costal cell, completely hyaline ( Fig. 3 ); fore coxa white, mid coxa yellowish-brown with median part black ( Fig 3 ); gaster ( Fig. 21 ) 1.7× as long as wide; Gt 1 0.6× as long as length of gaster, dorsal surface with strong reticulation, meshes elongate, posterior margin curved slightly forwards; Gt 6 0.1× as long as length of gaster with anterior part 1.4× as wide as width of posterior part, posterior margin straight with sharp edge. Male: entire antenna and gaster dark brown ( Figs 22 , 50 ); Gt 1 with strong reticulation ( Fig. 22 ).

Description (female holotype). Length 1.8 mm. Frons and vertex with weak and engraved reticulation and shiny, scrobes smooth, frons with a few scattered setae between scrobes and eyes. Mandibles with a row of small teeth at apex. Occipital margin with a sharp carina throughout. Dorsellum flat, smooth and shiny, posterior margin ±evenly rounded with small dents. Propodeal callus with nine setae. Fore wing with five setae on dorsal surface of submarginal vein; with 17 admarginal setae; costal cell with 14 setae on ventral surface, in a single row, apico-dorsal margin with five setae; speculum small and closed below. Gaster long ovate; Gt 1 with strong reticulation, meshes elongate, remaining tergites with weak reticulation; Gt 1 with posterior margin curved slightly forwards, Gt 6 with posterior margin straight.

Colour. Head metallic green, scrobes and part below level of toruli black with metallic tinges. Mandibles yellowish-brown. Antennae with scape yellowish-brown, pedicel pale brown, F1–F4 dark brown, clava white. Mesosoma black with metallic tinges. Legs with fore coxa white, mid coxa yellowish-brown with median part black, hind coxa black with metallic tinges; trochanters yellowish-white; femora, tibiae and tarsi yellowish-brown. Gaster with Gt 1-3 black with metallic tinges, remaining tergites brown.

Relative measurements: head length, dorsal view 19; head length, frontal view 29; head width 44; POL 9.5; OOL 5; mouth width 19; malar space 4; eye length 23; lateral ocellus diameter 3; scape length 18; scape width 4; pedicel length 7; pedicel width. dorsal view 3; flagellum length 47; F1 length 8.5; F1 width 3; F2 length 8; F2 width 4; F3 length 9; F3 width 4.5; F4 length 8; F4 width 4.5; clava length 14; clava width 4; pronotum length 16; pronotum width 28; mesosoma length 60; mesosoma width 37; midlobe of mesoscutum length 14; mesoscutellum length 20; mesoscutellum width 19; propodeum length 14; hind tibia length 41; hind tibial spur1 length 8; hind tibial spur 2 length 3.5; hind tarsus length 31; hind basitarsus length 8.5; fore wing length 107; fore wing width 44; costal cell length 30; costal cell width 1.5; marginal vein length 35; postmarginal vein length 13; stigmal vein length 9.5; Gt 1 length 35; Gt 6 length 5; Gt 6 width at base 14; Gt 6 width at apex 10; gaster length 62; gaster width 37.

Variation. Length of body 1.4–1.8 mm. Costal cell with 3–6 setae in apico-dorsal part. Propodeal callus with 8–10 setae.

Male. Length 1.1–1.6 mm. Entire antennal flagellum dark brown. Otherwise as in female.

Relative measurements: head length, dorsal view 16; head width 39.5; eye length 20; scape length 18; scape width 4; flagellum length 62; F1 length 11; F1 width 5; F2 length 11; F2 width 5.5; F3 length 12; F3 width 6; F4 length 11.5; F4 width 6; clava length 17; clava width 5; Gt 1 length 32; gaster length 50; gaster width 30.

Distribution. Costa Rica.

Etymology. From the Latin albus = white, and clava = club, referring to the white antennal clava in female.

Material. Holotype female: COSTA RICA, Heredia, Estación Biológica La Selva , 50m, 10º26′N, 84º01′W, x.1995 ( NHMUK) . Paratypes (13♀ 9♁, MZLU, MZUCR, NHMUK): 1♀ with same label data as holotype; following from same locality as holotype but collected 22.i-2.ii.1991 (2♁) , 14.ix.1995 (1♀), xi.1995 (1♀), iii.1996 (1♀), 15.iv.1996 (1♁), 22-24.ii.2012 (1♀ 1♁); 1♀ COSTA RICA, Alajuela, 5km W San Ramón on Route 1, 1200m, iv.1997, P. Hanson ; 1♀ COSTA RICA, Cartago, Turrialba , CATIE, 700m, 21.ii.1991, J.S. Noyes ; 1♀ COSTA RICA, Guanacaste, Estación Cacao , 10º55′N, 85º30′W, 1100m, 19-20.ii.2005, J.S. Noyes ; 1♀ from same locality as previous but collected 1-9.iii.1996 ; 1♀ COSTA RICA, Guanacaste, Parque Nacional Guanacaste , below Pitilla , 500m, 7-8.iii.1990 , J.S. Noyes; 1♀ COSTA RICA, Limón, Reserva Biológica Hitoy Cerere , 9º40′N, 83º02′W, 100m, 24–25.ii.2004, J.S. Noyes; following from same locality as previous but collected 24-26.ii.2008 (1♀ 1♁) , 22-23.ii. 2010 (1♁); 2♁ COSTA RICA, Puntarenas, Estación Altamira, Sendero Los Gigantes , 9º02′N, 83º00′W, 1450–1700m, 7.ii–5.iii.2002, C. Hansson & Parataxonomos; 1♁ COSTA RICA, Puntarenas, San Vito, Las Cruces, Wilson Botanico, 8º47′N, 82º58′W, 1000–1300m, 7-19.ii.2007 , C. Hansson; 1♀ from same locality as previous but collected 19–22.ii.2008 .

Figures

FIGURES 1–6. Grotiusomyia spp., body in lateral view, females; 1 G. flavicornis Girault, non-type specimen from USA, Iowa; 2 G. nigricans (Howard), non-type specimen from the West Indies; 3 G. albiclava sp. nov., paratype; 4 G. annesmithae sp. nov., holotype; 5 G. azofeifai sp. nov., paratype; 6 G. flavimacula sp. nov., holotype.

FIGURES 19–24. Grotiusomyia spp., body in dorsal view; 19–20. G. nigricans (Howard), non-type specimens from the West Indies; 19 female; 20 male; 21–22. G. albiclava sp. nov.; 21 female paratype; 22 male paratype; 23–24. G. annesmithae sp. nov.; 23 female paratype; 24 male paratype.

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 76–83. Grotiusomyia spp., vertex, females; 76 G. flavicornis Girault, non-type; 77 G. nigricans (Howard), non-type; 78 G. albiclava sp. nov., holotype; 79 G. annesmithae sp. nov., holotype; 80 G. azofeifai sp. nov., paratype; 81 G. flavimacula sp. nov., holotype; 82 G. guanacastensis sp. nov., holotype; 83 G. hansoni sp. nov., paratype.

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.