Tetrastichus argutus, 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 argutus sp. n.

Materials

Type status: Holotype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-29751-E11; catalogNumber: BC-ZSM-HYM-29751-E11 ; recordNumber: BC-ZSM-HYM-29751-E11; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-29751-E11; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusargutus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; taxonRemarks: Holotype deposited in MZLU; Location: country: Sweden; decimalLatitude: 55.7078; decimalLongitude: 13.4528; 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-29750-E01; catalogNumber: BC-ZSM-HYM-29750-E01 ; recordNumber: BC-ZSM-HYM-29750-E01; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-29750-E01; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusargutus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.6619; decimalLongitude: 13.5472; Record Level: type: PhysicalObject; language: en; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-25460-H03; catalogNumber: BC-ZSM-HYM-25460-H03 ; recordNumber: BC-ZSM-HYM-25460-H03; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-25460-H03; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichusargutus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.6619; decimalLongitude: 13.5472; Record Level: type: PhysicalObject; language: en; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-29751-D04; catalogNumber: BC-ZSM-HYM-29751-D04 ; recordNumber: BC-ZSM-HYM-29751-D04; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-29751-D04; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichusargutus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.6967; decimalLongitude: 13.47; Record Level: type: PhysicalObject; language: en; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-22524-C06; catalogNumber: BC-ZSM-HYM-22524-C06 ; recordNumber: BC-ZSM-HYM-22524-C06; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-22524-C06; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichusargutus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Hungary; decimalLatitude: 46.522; decimalLongitude: 16.256; Record Level: type: PhysicalObject; language: en; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-27769-C12; catalogNumber: BC-ZSM-HYM-27769-C12 ; recordNumber: BC-ZSM-HYM-27769-C12; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-27769-C12; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichusargutus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 56.788; decimalLongitude: 16.637; Record Level: type: PhysicalObject; language: en; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-25460-C05; catalogNumber: BC-ZSM-HYM-25460-C05 ; recordNumber: BC-ZSM-HYM-25460-C05; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-25460-C05; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichusargutus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.705; decimalLongitude: 13.4886; Record Level: type: PhysicalObject; language: en; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-27769-E10; catalogNumber: BC-ZSM-HYM-27769-E10 ; recordNumber: BC-ZSM-HYM-27769-E10; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-27769-E10; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusargutus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: decimalLatitude: 56.676; decimalLongitude: 16.558; Record Level: type: PhysicalObject; language: en; basisOfRecord: PreservedSpecimen

Description

FEMALE holotype (Fig. 38). Body length 2.0 mm (paratype 1.8 mm). Head. Width/length in dorsal view 2.0, width/length in frontal view 1.2, POL/OOL 2.1, widths head/mesosoma 1.1, mouth width/malar space 1.2, malar space/eye height 0.6. Antenna. Scape length/eye height 1.0, pedicel+flagellum length/mesosoma width 1.9, length/width F1, F2, F3 2.0, 2.8, 2.6, clava length/width 4.0, lengths pedicel/F1 0.4, lengths F1/F2 0.8, F1/F3 1.0, lengths F1, F2, F3/clava 0.6, 0.7, 0.6, widths F1/pedicel (dorsal view) 1.8, lengths antennal spicule/C3 0.3. Mesosoma. Length/width 1.4, mesoscutal mid-lobe length/width (width measured medially) 0.9, mid-lobe with complete median groove, with three adnotaular setae on each side, lengths mesoscutum/mesoscutellum (measured medially) 1.4, mesoscutellum length/width 0.8, length/width of enclosed space between submedian grooves 2.1, distance between SMG/distance between SMG and SLG 1.8, lengths dorsellum/propodeum (measured medially) 0.6, propodeum with strong reticulation, propodeal callus with two setae. Fore wing. Costal cell length/width 15.0, lengths costal cell/marginal vein 0.8, lengths marginal/stigmal veins 3.2. Gaster. Elongate-acuminate, length/width 2.1, lengths gaster/head+mesosoma 1.0, Gt7 length/width 0.6, length of longest cercal seta/next longest seta 1.8, longest cercal seta kinked in apical ¼, ovipositor sheaths reaching beyond apex of Gt7.

Colour. Body strongly metallic, coppery and golden, scape yellowish-brown, pedicel and flagellum dark brown, tegulae dark brown, wing hyaline with venation yellowish-brown, coxae concolorous with body, trochanters, femora and tibiae yellowish-brown, tarsi yellowish-brown with T4 brown.

MALE. Body length 1.4-1.6 mm. Head. Width/length in dorsal view 2.3, width/length in frontal view 1.2, eye height/malar space 1.5, mouth width/malar space 1.4, widths head/mesosoma 1.1. Antenna. F1-F4 with basal whorls of setae, reaching beyond apex of corresponding flagellomere, scape length/eye height 1.1, scape length/width 3.2, ventral plaque placed in central part of scape, lengths ventral plaque/scape 0.3, pedicel+flagellum length/mesosoma width 2.1, length/width F1, F2, F3, F4 1.9, 2.4, 2.8, 2.5, clava length/width 4.8, lengths pedicel/F1 0.7, lengths F1/F2 0.8, F1/F3 0.8, F1/F4 0.9, lengths F1, F2, F3, F4/clava 0.5, 0.6, 0.6, 0.5.

Colour. Different from female in several parts: scape, trochanters and femora dark brown, tibiae pale brown, fore tarsus brown, body less strongly metallic, blue.

Diagnosis

Female with ovipositor sheaths extending beyond apex of Gt7; antenna with long flagellomeres: F1 2.0 ×, F2 2.8 × and F3 2.6 × as long as wide, pedicel 0.4 × as long as F1, F1 1.8 × as wide as width of pedicel in dorsal view, pedicel+flagellum 1.9 × width of mesoscutum; male scape with short plaque, 0.3 × length of scape and with apex of scape narrowed, with long flagellomeres: F1 1.9 ×, F2 2.4 ×, F3 2.8 × and F4 2.5 × as long as wide; female trochanters, femora and scape yellowish-brown; hind coxa with a strong and sharp carina along posterior margin.

Distribution

Hungary and Sweden.

Ecology

Host

Unknown.

Notes

Holotype deposited in MZLU, paratypes in MZLU.