Euplectrus alvarowillei Hansson

Hansson, Christer, Smith, M. Alex, Janzen, Daniel H. & Hallwachs, Winnie, 2015, Integrative taxonomy of New World Euplectrus Westwood (Hymenoptera, Eulophidae), with focus on 55 new species from Area de Conservacion Guanacaste, northwestern Costa Rica, ZooKeys 485, pp. 1-236 : 22-23

Taxon classification Animalia Hymenoptera Eulophidae

Euplectrus alvarowillei Hansson sp. n. Figures 53-59, 64-66, 735

Material.

Holotype a female labeled "COSTA RICA: Guanacaste, ACG, Sector Potrerillos, Rio Azufrado, 18.v.2006, L. Swiacki, ex Callopistria floridensis eating Ceratopteris Espinoza 4311, sibling of wasp DHJPAR0028881, 06-SRNP-13561" (BMNH). Paratypes: 13♀ 2♂: COSTA RICA (ACG): Guanacaste: 5♀ 1♂ with same label data as holotype (BMNH, INBio); Sector Potrerillos: Rio Azufrado: ex Callopistria floridensis eating Ceratopteris Espinoza 4311 18.v.2006, L. Swiacki, sibling of wasp DHJPAR00288954311, 06-SRNP-13538, (6♀, in BMNH, CNC, MZLU, USNM); Sector Pitilla: Bullas, 12.ii.2010, D. Martinez, ex Callopistria floridensis eating Niphidium oblanceolatum , sibling of wasp DHJPAR00392, 10-SRNP-70752 (2♀ 1♂, in INBio).

Diagnosis.

Lower face black (Figs 54, 55); legs yellowish-brown with mid and hind coxae and hind femur brown (Fig. 53); petiole 1.0 × as long as wide; gaster with anterior ½ yellowish-brown (female, Fig. 56) or white (male, Fig. 57), with lateral margins black, posterior ½ black; male antenna with scape dark brown to black, strongly swollen (Fig. 59), 1.6 × as long as wide, with numerous sensory pores scattered all over the inner lateral surface. Very similar to Euplectrus insularis but with lower face black (reddish-brown in Euplectrus insularis ), male petiole as long as wide (0.8 × as long as wide in Euplectrus insularis ), and hind legs with coxae and femora brown (yellowish-brown in Euplectrus insularis ).

Description.

Female. Length of body 2.2 mm. Antenna with scape and pedicel yellowish-brown, flagellomeres 1-2 yellowish-brown with dorsal surface dark brown, flagellomeres 3-6 dark brown (Fig. 58). Mandibles and palpi yellowish-brown. Head including lower face black and shiny (Fig. 54). Frons close to eyes with four irregular rows of setae (Fig. 64). Vertex smooth and shiny (Fig. 65). Occipital margin with a carina behind ocellar triangle (Fig. 65).

Mesosoma black and shiny (Fig. 53). Scutellum 0.8 × as long as wide; with very weak reticulation (Fig. 66). Dorsellum along anterior margin with a deep groove that is divided by longitudinal carinae (Fig. 735), groove medially 0.4 × as long as length of dorsellum. Propodeum smooth and shiny (Fig. 735); anteromedially with a semicircular cup; propodeal callus with 11 setae. Legs (Fig. 53): fore leg yellowish-brown; mid leg with coxa brown, femur, tibia and tarsus yellowish-brown; hind leg with coxa and femur brown, tibia and tarsus yellowish-brown. Fore wing: costal cell with one complete row of setae on ventral surface, and margin with six setae close to marginal vein; with 14 admarginal setae in one row.

Gaster in anterior ½ yellowish-brown with lateral margins black, posterior ½ black (Fig. 56).

Ratios. HE/MS/WM = 1.7/1.0/1.0; POL/OOL/POO = 8.3/4.0/1.0; OOL/DO = 1.8; WE/WF/WH/HH = 1.0/2.8/4.9/3.7; WH/WT = 1.1; PM/ST = 1.3; TS1/TS2/LT/LT1/LT2/LT3/LT4 = 5.0/3.0/8.3/3.3/1.8/1.0/1.6; LP/WP = 1.0; MM/LG = 1.0.

Male. Length of body 1.6 mm. Scape dark brown to black, strongly swollen (Fig. 59); with entire inner lateral surface with sensory pores. Similar to female except antenna with pedicel and flagellomeres 1-2 yellowish-white, flagellomeres 3-6 dark brown to black, 3-4 with peduncles yellowish-white (Fig. 59), gaster with anterior pale area white (Fig. 57).

Ratios. LC/WS = 1.6; MM/LG = 1.0.

Hosts and biology.

Feeding on third instar larva of Callopistria floridensis ( Noctuidae ) feeding on Ceratopteris Espinoza 4311 ( Parkeriaceae ) and Niphidium oblanceolatum ( Polypodiaceae ), parasitoid cocoons stuck to dead larva and substrate.

Distribution.

Costa Rica (Guanacaste Province).

Etymology.

This species is named after Alvaro Wille, in recognition of his contribution to the understanding of ACG Hymenoptera taxonomy.