Tetrastichus erinus, Hansson & Schmidt, 2020

Hansson, Christer & Schmidt, Stefan, 2020, A revision of European species of the genus Tetrastichus Haliday (Hymenoptera: Eulophidae) using integrative taxonomy, Biodiversity Data Journal 8, pp. 59177-59177 : 59177

Tetrastichus erinus sp. n.

Materials

Type status: Holotype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-20721-F10; catalogNumber: BC-ZSM-HYM-20721-F10 ; recordNumber: BC-ZSM-HYM-20721-F10; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-20721-F10; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichuserinus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; taxonRemarks: Holotype deposited in MZLU; Location: country: Sweden; decimalLatitude: 55.7; decimalLongitude: 13.5; Record Level: type: PhysicalObject; language: en; institutionCode: MZLU; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-27493-H04; catalogNumber: BC-ZSM-HYM-27493-H04 ; recordNumber: BC-ZSM-HYM-27493-H04; recordedBy: SMTP; individualID: BC-ZSM-HYM-27493-H04; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichuserinus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 67.031; decimalLongitude: 20.232; Record Level: type: PhysicalObject; language: en; institutionCode: SMTP; basisOfRecord: PreservedSpecimen

Description

FEMALE holotype (Fig. 24). Body length 1.9 mm (paratype 2.1 mm). Head. Width/length in dorsal view 2.1, width/length in frontal view 1.3, POL/OOL 2.0, widths head/mesosoma 1.1, mouth width/malar space 0.9, malar space/eye height 0.8. Antenna. Scape length/eye height 1.1, pedicel+flagellum length/mesosoma width 1.3, length/width F1, F2, F3 2.0, 2.0, 2.0, clava length/width 4.0, lengths pedicel/F1 0.7, lengths F1/F2 1.0, F1/F3 1.0, lengths F1, F2, F3/clava 0.5, 0.5, 0.5, widths F1/pedicel (dorsal view) 1.3, lengths antennal spicule/C3 0.2. Mesosoma. Length/width 1.4, mesoscutal mid-lobe length/width 0.9 (width measured in anterior part), mid-lobe with median groove in posterior ⅔, with three adnotaular setae on each side, lengths mesoscutum/mesoscutellum (measured medially) 1.2, mesoscutellum length/width 0.9, length/width of enclosed space between submedian grooves 2.2, distance between SMG/distance between SMG and SLG 1.9, lengths dorsellum/propodeum (measured medially) 0.6, propodeum with strong reticulation, propodeal callus with six setae. Fore wing. Costal cell length/width 12.8, lengths costal cell/marginal vein 1.0, lengths marginal/stigmal veins 3.1. Gaster. Subcircular to ovate, length/width 1.2, lengths gaster/mesosoma 1.1, Gt7 length/width 0.3, length of longest cercal seta/next longest seta 1.4, longest cercal seta straight, ovipositor sheaths not reaching apex of Gt7.

Colour. Body with golden-green, scape yellowish-brown with apical ⅓ brown, pedicel and flagellum dark brown, tegulae black with metallic tinge, wings hyaline with veins brown to fuscous, coxae and femora concolorous with body, trochanters dark brown, tibiae yellowish-brown, fore tarsus brown, mid and hind tarsi yellowish-white with T4 brownish.

Variation. Body blue-green in paratype.

MALE. Unknown.

Diagnosis

Mesoscutellum with distance between submedian grooves long, distances between submedian grooves/submedian and sublateral grooves 1.9, ratio length/width of enclosed space between submedian grooves 2.2; tibiae yellowish-brown; female with malar space 0.8 × eye height; antennal clava 4 × as long as wide; POL/OOL 2.0.

Distribution

Sweden.

Notes

Holotype deposited in MZLU, paratypes in SMTP.

Host

Unknown.