Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species Author Hansson, Christer text Zootaxa 2023 2023-05-04 5278 1 39 77 http://dx.doi.org/10.11646/zootaxa.5278.1.2 journal article 54394 10.11646/zootaxa.5278.1.2 cabaaf5e-455a-4c57-84ca-aed0c83106ec 1175-5326 7894979 9D0E61E2-298C-4248-BD76-A2C392372F90 Grotiusomyia reticulata sp. nov. Figs 16 , 41, 42 , 62 , 69 , 91 , 108 Diagnosis . Female: mandibles yellowish-brown with a row of small teeth at apex (as in Fig. 112 ); flagellum brown, 1.3× as long as width of mesoscutum, F4 1.3× as long as wide, apex of clava pointed ( Figs 16 , 62 ); vertex with weak reticulation ( Fig. 91 ); occipital margin with a sharp carina throughout ( Fig. 91 ); mesoscutum and mesoscutellum with same colour and reticulation ( Fig. 41 ); mesoscutellum convex; dorsellum flat, smooth and shiny, medio-posterior part slightly protruding with small dents; fore wing with 2–4 setae in apico-dorsal part of costal cell, completely hyaline ( Fig. 16 ); fore coxa white, mid coxa pale brown ( Fig. 16 ); gaster ( Fig. 41 ) 1.7× as long as wide with apex pointed; Gt 1 0.4× as long as length of gaster, dorsal surface reticulate with anterior ¼ smooth, meshes elongate, posterior margin curved forwards; Gt 6 0.1× as long as length of gaster with anterior part 1.5× as wide as width of posterior part, posterior margin straight with sharp edge. Male: gaster entirely dark brown, reticulation on Gt 1 weak and superficial, or without reticulation ( Fig. 42 ). Description (female holotype ). Length 1.4 mm . Frons with strong reticulation, scrobes smooth. Vertex with weak reticulation. Mandibles with a row of small teeth at apex. Occipital margin with a sharp carina throughout. Dorsellum ±flat, smooth and shiny, medio-posterior part slightly protruding with small dents. Propodeal callus with eight setae. Fore wing with six setae on dorsal surface of submarginal vein; with 12 admarginal setae; costal cell with 11 setae on ventral surface, in one row, apico-dorsal margin with two setae; speculum small and closed below. Gaster long ovate with pointed apex; Gt 1 reticulate with anterior ¼ smooth, remaining tergites with weak reticulation; Gt 1 with posterior margin curved forwards, Gt 6 with posterior margin straight. Colour. Head metallic bluish-green, scrobes and part inside ocellar triangle black with metallic tinges. Mandibles yellowish-brown. Antennae with scape and pedicel yellowish-brown, flagellum brown. Mesosoma black with metallic greenish tinges. Legs with fore coxa white, mid coxa pale brown, hind coxa black with metallic tinges; trochanters yellowish-white; femora, tibiae and tarsi yellowish-brown. Gaster with Gt 1 with smooth parts metallic bluish and reticulate parts dark brown with metallic tinges, remaining tergites dark brown with metallic tinges. Relative measurements: head length, dorsal view 18; head length, frontal view 26; head width 36; POL 7.5; OOL 3.5; mouth width 9; malar space 4.5; eye length 21; lateral ocellus diameter 3.5; scape length 14; scape width 3; pedicel length 5.5; pedicel width. dorsal view 3; flagellum length 35; F1 length 6.5; F1 width 3; F2 length 6; F2 width 3.5; F3 length 6; F3 width 4; F4 length 5; F4 width 4; clava length 9.5; clava width 4; pronotum length 13; pronotum width 22; mesosoma length 46; mesosoma width 28; midlobe of mesoscutum length 16; mesoscutellum length 16; mesoscutellum width 14.5; propodeum length 10; hind tibia length 31; hind tibial spur1 length 5.5; hind tibial spur2 length 2.5; hind tarsus length 25; hind basitarsus length 7.5; fore wing length 84; fore wing width 37; costal cell length 24; costal cell width 1.5; marginal vein length 25; postmarginal vein length 11; stigmal vein length 7.5; Gt 1 length 22; Gt 6 length 5.5; Gt 6 width at base 15; Gt 6 width at apex 10; gaster length 55; gaster width 32. Variation. Length of body 1.2–1.7 mm . Costal cell with 2–4 setae in apico-dorsal part. Propodeal callus with 6–8 setae. Male . Length 0.9–1.3 mm . Fore coxa white to pale brown. Reticulation on Gt 1 weak and superficial, or missing. Otherwise as in female. Relative measurements: head length, dorsal view 13; head width 27.5; eye length 15; scape length 11; scape width 2.5; flagellum length 34; F1 length 6.5; F1 width 3.5; F2 length 5.5; F2 width 3.5; F3 length 5.5; F3 width 3.5; F4 length 5.5; F4 width 4; clava length 10; clava width 3.5; Gt 1 length 13.5; gaster length 36; gaster width 20. Distribution . Costa Rica . Etymology . Name referring to reticulate first gastral tergite. Material . Holotype female : COSTA RICA , Guanacaste , Parque Nacional Santa Rosa , 300,.SE-8-C, 8.ii-2.iii.1986 , D.H. Janzen & I.D. Gauld ( NHMUK ) . Paratypes ( 34♀ 21♁ , CNC , MZLU , MZUCR , NHMUK ): 1♀ with same label data as holotype ; following from same locality as holotype but collected 13.vii-3.viii.1985 ( 1♀ ), 3-24.viii.1985 ( 3♁ ), 5-26.x.1985 ( 1♀ 4♁ ), 26.x-16.xi.1985 ( 1♀ 2♁ ), 16.xi-7.xii.1985 ( 1♀ ), 7-28.xii.1985 ( 2♀ 1♁ ), 18.i-8.ii.1986 ( 1♀ ), 8.ii-2.iii.1986 ( 1♁ ), 2-23.iii.1986 ( 3♀ 2♁ ), 23.iii-13.iv.1986 ( 5♀ 3♁ ), 13.iv-4.v.1986 ( 5♀ ), 14.viii-6.ix.1986 ( 2♀ ), 27.ix-18.x.1986 ( 1♁ ), 21.ii-4.iii.1987 ( 4♀ 1♁ ), 14.iii-4.iv.1987 ( 2♀ ), 4-25.iv.1987 ( 2♀ ), 25.iv-16.v.1987 ( 1♁ ), 16.v-6.vi.1987 ( 2♁ ) ; 1♀ COSTA RICA , Guanacaste , Bagaces , Parque Nacional Palo Verde , Sector Catalina , Fila Catalina , LN 257400_400000, 250m , 11.x.-9.xi.1999 , I. Jiménez. Barcoded specimens ( 2♀ ) : 1♀ COSTA RICA , Guanacaste , Area de Conservacion Guanacaste , Sector Pailas , Pailas Dos PL12-3, 10.7631°N 85.3344°W , 820m , 16-23.vi.2016 , D. Janzen , W. Hallwachs ( BIOUG 49968 - E 04) ; 1♀ COSTA RICA , Guanacaste , Area de Conservacion Guanacaste, Sector Pailas , Pailas , Dos PL12-3 , 10.7631°N 85.3344°W , 820m , 06-13.viii.2015 , D. Janzen , W. Hallwachs ( BIOUG 52666 - G 03).