Tetrastichus bledius, 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 bledius sp. n.

Materials

Type status: Holotype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-27768-C01; catalogNumber: BC-ZSM-HYM-27768-C01 ; recordNumber: BC-ZSM-HYM-27768-C01; recordedBy: J.S. Noyes; individualID: BC-ZSM-HYM-27768-C01; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusbledius; 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-22526-F01; catalogNumber: BC-ZSM-HYM-22526-F01 ; recordNumber: BC-ZSM-HYM-22526-F01; recordedBy: S. Schmidt; individualID: BC-ZSM-HYM-22526-F01; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusbledius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 56.776; decimalLongitude: 16.624; Record Level: type: PhysicalObject; language: en; institutionCode: ZSM; basisOfRecord: PreservedSpecimen Type status: Paratype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-29751-B01; catalogNumber: BC-ZSM-HYM-29751-B01 ; recordNumber: BC-ZSM-HYM-29751-B01; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-29751-B01; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichusbledius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.6861; decimalLongitude: 13.4611; 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-27768-H03; catalogNumber: BC-ZSM-HYM-27768-H03 ; recordNumber: BC-ZSM-HYM-27768-H03; recordedBy: J.S. Noyes; individualID: BC-ZSM-HYM-27768-H03; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusbledius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Romania; decimalLatitude: 47.244; decimalLongitude: 27.483; 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-27770-D03; catalogNumber: BC-ZSM-HYM-27760-D03 ; recordNumber: BC-ZSM-HYM-27760-D03; recordedBy: J.S. Noyes; individualID: BC-ZSM-HYM-27770-D03; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusbledius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Romania; decimalLatitude: 47.1875; decimalLongitude: 27.5489; 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-26563-D02; catalogNumber: BC-ZSM-HYM-26563-D02 ; recordNumber: BC-ZSM-HYM-26563-D02; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-26563-D02; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichusbledius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.5214; decimalLongitude: 13.9369; 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-27768-G08; catalogNumber: BC-ZSM-HYM-27768-G08 ; recordNumber: BC-ZSM-HYM-27768-G08; recordedBy: J.S. Noyes; individualID: BC-ZSM-HYM-27768-G08; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusbledius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Romania; decimalLatitude: 47.244; decimalLongitude: 27.483; 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-27770-C12; catalogNumber: BC-ZSM-HYM-27760-C12 ; recordNumber: BC-ZSM-HYM-27760-C12; recordedBy: J.S. Noyes; individualID: BC-ZSM-HYM-27770-C12; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusbledius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Romania; decimalLatitude: 47.2442; decimalLongitude: 27.4828; 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-27770-C11; catalogNumber: BC-ZSM-HYM-27760-C11 ; recordNumber: BC-ZSM-HYM-27760-C11; recordedBy: J.S. Noyes; individualID: BC-ZSM-HYM-27770-C11; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusbledius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Romania; decimalLatitude: 47.2442; decimalLongitude: 27.4828; 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-27770-B03; catalogNumber: BC-ZSM-HYM-27760-B03 ; recordNumber: BC-ZSM-HYM-27760-B03; recordedBy: J.S. Noyes; individualID: BC-ZSM-HYM-27770-B03; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichusbledius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Romania; decimalLatitude: 47.2442; decimalLongitude: 27.4828; Record Level: type: PhysicalObject; language: en; basisOfRecord: PreservedSpecimen

Description

FEMALE holotype (Fig. 39). Body length 1.7 mm (paratypes 1.5-1.7 mm). Head. Width/length in dorsal view 2.4, width/length in frontal view 1.3, POL/OOL 2.3, widths head/mesosoma 1.1, mouth width/malar space 1.2, malar space/eye height 0.8. Antenna. Scape length/eye height 1.1, pedicel+flagellum length/mesosoma width 1.4, length/width F1, F2, F3 1.6, 1.6, 1.5, clava length/width 3.8, lengths pedicel/F1 0.9, lengths F1/F2 0.9, F1/F3 0.9, lengths F1, F2, F3/clava 0.4, 0.4, 0.4, widths F1/pedicel (dorsal view) 1.1, lengths antennal spicule/C3 0.4. Mesosoma. Length/width 1.4, mesoscutal mid-lobe length/width 1.0 (width measured in anterior part), mid-lobe with a median groove in posterior ½, with three adnotaular setae on each side, lengths mesoscutum/mesoscutellum (measured medially) 1.3, 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 0.8, propodeum with strong reticulation, propodeal callus with two setae. Fore wing. Costal cell length/width 14.0, lengths costal cell/marginal vein 1.0, lengths marginal/stigmal veins 3.0. Gaster. Ovate, length/width 1.7, lengths gaster/head+mesosoma 1.0, Gt7 length/width 0.5, length of longest cercal seta/next longest seta 1.3, longest cercal seta almost straight, ovipositor sheaths not reaching apex of Gt7.

Colour. Body with weak metallic blue-green tinges, entire antenna dark brown, tegulae dark brown, wings hyaline with venation brown to fuscous, coxae and femora concolorous with body, trochanters dark brown, fore tibia yellowish-brown, mid and hind tibiae dark brown, fore tarsus brown, mid and hind tarsi yellowish-brown with T4 dark brown.

MALE. Body length 1.4 mm. Head. Width/length in dorsal view 2.3, width/length in frontal view 1.3, mouth width/malar space 1.2, eye height/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 1.0, scape length/width 2.4, ventral plaque placed in central part of scape, lengths ventral plaque/scape 0.9, pedicel+flagellum length/mesosoma width 1.6, length/width F1, F2, F3, F4 1.0, 1.3, 1.8, 1.7, clava length/width 3.8, lengths pedicel/F1 1.2, lengths F1/F2 0.8, F1/F3 0.6, F1/F4 0.6, lengths F1, F2, F3, F4/clava 0.3, 0.4, 0.5, 0.4.

Colour similar to female, but with all tarsi brown.

Diagnosis

Ratio POL/OOL 2.3; mesoscutellum with distance between SMG/distance between SMG and SLG 1.9; female gaster ovate, 1.7 × as long as wide. See also key to distinguish from similar species.

Distribution

Romania and Sweden.

Ecology

Host

Unknown.

Notes

Holotype deposited in NHM, paratypes in MZLU, NHM and ZSM.