Diglyphomorphomyia costulata, Hansson, 2022

Hansson, Christer, 2022, Diglyphomorphomyia Girault (Chalcidoidea: Eulophidae) new to the Neotropical region including nine new species, Zootaxa 5141 (4), pp. 321-340 : 326-327

Diglyphomorphomyia costulata sp. nov.

Figs 5, 6 , 23, 24 , 32, 35

Diagnosis. Head, including antennal flagellum, and mesosoma dark brown to black ( Figs 5, 6 ), legs with coxae dark brown, fore leg with trochanter and femur dark brown, mid leg with trochanter and femur brown, hind leg with trochanter white and femur with basal one-half white and apical one-half yellowish-brown, tibiae and tarsi on all legs yellowish-brown ( Fig. 5 ), fore wing infumate ( Fig. 5 ), Gt 1–2 yellowish-white, Gt 3–7 dark brown ( Fig. 6 ); pronotal collar without a carina along anterior margin ( Fig. 6 ); midlobe of mesoscutum with three pairs of long and strong setae ( Fig. 6 ); mesoscutellum with sublateral grooves slightly sinuate in lateral part, not joining in posterior part ( Fig. 6 ); propodeum with costula, i.e. with a transverse carina between plica and median carina, one on each side of median carina ( Fig. 6 ); male antennae with long setae on flagellomeres, setae about as long as flagellomere attached to ( Fig. 35 ).

Description (female holotype). Length 1.7mm. Frons and vertex with weak reticulation. Pronotal collar without a carina along anterior margin. Mesoscutum, mesoscutellum, dorsellum and propodeum with weak reticulation; midlobe of mesoscutum with three pairs of long and strong setae; mesoscutellum with sublateral grooves not joining in posterior part; propodeum with costula; propodeal callus with seven setae. Fore wing with three setae on dorsal surface of submarginal vein; with 16 admarginal setae; costal cell with a row of 20 setae on ventral surface, apicodorsal margin with five setae. Gaster short ovate.

Colour. Head black. Antennae with scape yellowish-brown, pedicel pale brown, flagellum dark brown. Mesosoma dark brown. Legs with coxae dark brown, fore leg with trochanter and femur dark brown, mid leg with trochanter and femur brown, hind leg with trochanter white and femur with basal one-half white and apical one-half yellowish-brown, tibiae and tarsi on all legs yellowish-brown. Wings infumate. Petiole dark brown. Gaster with Gt 1–2 yellowish-white, Gt 3–7 and gonoplac dark brown.

Relative measurements. Head: length in dorsal view 20; length in frontal view 32; width 43; POL 9; OOL 5; mouth width 13; malar space 6.5; eye height 23; lateral ocellus maximum width 3.2; scape length 18.5; scape width 4; pedicel length 6; pedicel width in dorsal view 3.5; pedicel+flagellum length 41; F1 length 6; F2 length 5.5; F3 length 5.5; F4 length 5.5; antennal clava length 12; F1 width 3; F2 width 4; F3 width 4.5; F4 width 5; antennal clava width 6. Mesosoma: length 53; width 38; midlobe of mesoscutum length 18; mesoscutellum length 22; mesoscutellum width 17.5; dorsellum length 2.5; propodeum length 13; mid tarsus length 22; mid tarsus T4 length 6; hind tarsus length 21; hind tarsus T4 length 4.5; fore wing length 72; fore wing width 44; costal cell length 29; costal cell width 3; marginal vein length 28; postmarginal vein length 13.5; stigmal vein length 9.5. Gaster: length 62; width 43; Gt 1 length 26; Gt 7 length 2.5; Gt 7 width 11.

Variation in paratypes. Length 1.5–1.8mm. One paratype with F4 and antennal clava yellowish-white. Fore wing submarginal vein with 3–4 setae on dorsal surface. Propodeal callus with 7–8 setae. Otherwise as in holotype.

Male. Length 1.1–1.7mm. Antennal flagellomeres with long setae ( Fig. 35 ), e.g. setae on funiculars as long as funicular they are attached to. Mid leg with dark brown trochanter and femur, hind leg with basal one-third white and apical two-thirds pale brown and tibia pale brown. Otherwise as in female.

Relative measurements. Head: length in dorsal view 17; length in frontal view 30; width 39; POL 9; OOL 5; mouth width 13; malar space 8.5; eye height 19.5; scape length 18; scape width 4; pedicel+flagellum length 52; F1 length 7.5; F2 length 7; F3 length 7; F4 length 7; antennal clava length 13; F1 width 4; F2 width 4; F3 width 5; F4 width 5; antennal clava width 4.5. Mesosoma: length 55; width 38; midlobe of mesoscutum length 19; mesoscutellum length 22; mesoscutellum width 19; dorsellum length 4; propodeum length 13. Gaster: length 59; width 37; Gt 1 length 28.

Distribution. Costa Rica.

Etymology. Named for the costulae on propodeum.

Material. Holotype female: COSTA RICA, San José, San Antonio de Escazú , 9º54’N, 84º09’W, 1300m, viii– ix.1997, P. Hanson ( NHMUK) . Paratypes (2♀ 5♂, MZLU, NHMUK) : 1♀ COSTA RICA, Heredia, Santo Domingo, Santa Rosa, INBio Parque , Bosque Humedo , LN 217300_526200, 27.vi–6.viii.2001, malaise trap, R. Zuñiga ; 1♀ COSTA RICA, Limón, Reserva Biológica Hitoy Cerere, Estación , LN 184250_ 640500, 640m, 15.vi.1999, swept, F. Umaña ; 2♂ COSTA RICA, Puntarenas, Estación Altamira, Sendero a Casa Coca , 9º02’N, 83º00’W, 1450–1700m, 7.ii–5.iii.2002, C. Hansson & Parataxonomos ; 1♂ COSTA RICA, Puntarenas, Monteverde , LN 250850_449250, 1000–1350m, 3–31.i1993, Z. Fuentes ; 2♂ from same locality as previous but collected xi.1993 .

Figures

FIGURES 5–8. Diglyphomorphomyia spp. nov., females; 5–6. D. costulata; 5 body in lateral view, holotype; 6 body in dorsal view, holotype; 7–8. D. cristata; 7 body in lateral view, paratype; 8 body in dorsal view, holotype.

FIGURES 21–24. Diglyphomorphomyia spp. nov., males; 21–22. D. pilosa; 21 body in lateral view, paratype; 22 body in dorsal view, paratype; 23–24. D. costulata; 23 body in dorsal view, paratype; 24 body in lateral view, paratype.

FIGURES 31–36. Diglyphomorphomyia spp. nov., head in frontal view; 31 D. pilosa, female holotype; 32 D. costulata, female paratype; 33 D. carinifer, male paratype; 34 D. pedunculata, male paratype; 35 D. costulata, male paratype; 36 D. pilosa, male paratype.