Tetrastichus minius, 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 minius sp. n.

Materials

Type status: Holotype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-27768-A10; catalogNumber: BC-ZSM-HYM-27768-A10 ; recordNumber: BC-ZSM-HYM-27768-A10; recordedBy: J.S. Noyes; individualID: BC-ZSM-HYM-27768-A10; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusminius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; taxonRemarks: Holotype deposited in NHM; Location: country: Romania; decimalLatitude: 47.011; decimalLongitude: 27.603; Record Level: type: PhysicalObject; language: en; institutionCode: NHM; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-27768-B08; catalogNumber: BC-ZSM-HYM-27768-B08 ; recordNumber: BC-ZSM-HYM-27768-B08; recordedBy: J.S. Noyes; individualID: BC-ZSM-HYM-27768-B08; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusminius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Romania; decimalLatitude: 47.011; decimalLongitude: 27.603; Record Level: type: PhysicalObject; language: en; institutionCode: NHM; basisOfRecord: PreservedSpecimen

Description

FEMALE holotype (Fig. 80). Body length 1.4 mm (paratype 1.3 mm). Head. Width/length in dorsal view 2.2, width/length in frontal view 1.3, POL/OOL 1.7, widths head/mesosoma 1.2, mouth width/malar space 1.4, malar space/eye height 0.7. Antenna. Scape length/eye height 1.0, pedicel+flagellum length/mesosoma width 1.2, length/width F1, F2, F3 1.4, 1.1, 1.1, clava length/width 2.2, lengths pedicel/F1 0.9, lengths F1/F2 1.1, F1/F3 1.1, lengths F1, F2, F3/clava 0.4, 0.4, 0.4, widths F1/pedicel (dorsal view) 1.1, lengths antennal spicule/C3 0.3. Mesosoma. Length/width 1.3, mesoscutal mid-lobe length/width 0.9 (width measured in anterior part), mid-lobe with a weak median groove in posterior ½, with three adnotaular setae on either side, length of mesoscutum/mesoscutellum (measured medially) 1.3, lengths dorsellum/propodeum 0.4, mesoscutellum length/width 0.8, length/width of enclosed space between submedian grooves 2.3, distance between SMG/distance between SMG and SLG 1.3, propodeum with weak reticulation, propodeal callus with five setae. Fore wing. Costal cell length/width 12.5, lengths costal cell/marginal vein 1.1, lengths marginal/stigmal veins 2.9. Gaster. Short ovate, length/width shrivelled and difficult to measure, but appears slightly longer than wide, lengths gaster/mesosoma nm, Gt7 length/width 0.3, length of longest cercal seta/next longest seta 1.7, longest cercal seta sinuate, ovipositor sheaths not reaching apex of Gt7.

Colour. Body dark brown to black, partly with weak metallic tinges, antenna dark brown, tegulae black with metallic tinges, wings hyaline with venation dark yellowish-brown, coxae, trochanters and femora concolorous with body, tibiae and tarsi dark yellowish-brown.

MALE. Unknown.

Diagnosis

Mouth opening 1.4 × malar space; female flagellum short, for example, F3 1.1 × as long as wide and clava 2.2 × as long as wide; body dark brown black with metallic tinges. Similar to T. polyporinus , see key for characters to separate.

Distribution

Romania.

Ecology

Host

Unknown.

Notes

Holotype deposited in NHM, paratype in NHM.