Tetrastichus fadus, 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 fadus sp. n.

Materials

Type status: Holotype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-22524-H10; catalogNumber: BC-ZSM-HYM-22524-H10 ; recordNumber: BC-ZSM-HYM-22524-H10; recordedBy: E. Shevtsova; individualID: BC-ZSM-HYM-22524-H10; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusfadus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; taxonRemarks: Holotype deposited in MZLU; Location: country: Russia; decimalLatitude: 60.401; decimalLongitude: 30.373; Record Level: type: PhysicalObject; language: en; institutionCode: MZLU; basisOfRecord: PreservedSpecimen

Description

FEMALE holotype (Fig. 64). Body length 2.6 mm. Head. Width/length (dorsal view) 2.2, width/length (frontal view) 1.2, POL/OOL 1.8, widths head/mesosoma 1.1, mouth width/malar space 1.3, malar space/eye height 0.7. Antenna. Scape length/eye height 0.8, pedicel+flagellum length/mesosoma width 1.3, length/width F1, F2, F3 2.1, 2.0, 2.0, clava length/width 3.1, lengths pedicel/F1 0.6, lengths F1/F2 1.1, F1/F3 1.1, lengths F1, F2, F3/clava 0.6, 0.6, 0.6, widths F1/pedicel (dorsal view) 1.4, lengths antennal spicule/C3 0.2. Mesosoma. Length/width 1.4, mesoscutal mid-lobe length/width (width measured in anterior part) 1.0, mid-lobe without median groove, with four adnotaular setae on each side, lengths mesoscutum/mesoscutellum (measured medially) 1.5, mesoscutellum length/width 0.8, length/width of enclosed space between submedian grooves 2.1, distance between SMG/distance between SMG and SLG 1.9, lengths dorsellum/propodeum (measured medially) 0.6, propodeum with strong reticulation, propodeal callus with five setae. Fore wing. Costal cell length/width 10.0, lengths costal cell/marginal vein 1.0, lengths marginal/stigmal veins 3.3. Gaster. Elongate-acuminate, length/width 2.4, lengths gaster/head+mesosoma 1.3, Gt7 length/width 1.2, length of longest cercal seta/next longest seta 1.7, longest cercal seta almost straight, ovipositor sheaths projecting beyond apex of Gt7.

Colour. Body with weak golden-green tinges, scape yellowish-brown, pedicel and flagellum dark brown, tegulae dark brown, wings hyaline with veins yellowish-brown, coxae concolorous with body, trochanters and femora dark brown, tibiae and tarsi yellowish-brown.

MALE. Unknown.

Diagnosis

Gaster elongate-acuminate, length/width 2.4, lengths gaster/head+mesosoma 1.3, Gt7 length/width 1.2; antennal clava 1.0 × as long as F2+F3 and with distinct constriction between C1 and C2.

Distribution

Russia.

Ecology

Host

Unknown.

Notes

Holotype deposited in MZLU.