Tetrastichus tacitus, 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 tacitus sp. n.

Materials

Type status: Holotype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-22524-B10; catalogNumber: BC-ZSM-HYM-22524-B10 ; recordNumber: BC-ZSM-HYM-22524-B10; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-22524-B10; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; taxonRemarks: Holotype deposited in MZLU; Location: country: Hungary; decimalLatitude: 47.22; decimalLongitude: 16.313; 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-13565-F03; catalogNumber: BC-ZSM-HYM-13565-F03 ; recordNumber: BC-ZSM-HYM-13565-F03; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-13565-F03; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Hungary; decimalLatitude: 46.903; decimalLongitude: 16.454; 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-22523-G01; catalogNumber: BC-ZSM-HYM-22523-G01 ; recordNumber: BC-ZSM-HYM-22523-G01; recordedBy: O.Popovici; individualID: BC-ZSM-HYM-22523-G01; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Romania; decimalLatitude: 46.594; decimalLongitude: 27.353; 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-A10; catalogNumber: BC-ZSM-HYM-22524-A10 ; recordNumber: BC-ZSM-HYM-22524-A10; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-22524-A10; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Hungary; decimalLatitude: 47.381; decimalLongitude: 16.552; 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-B02; catalogNumber: BC-ZSM-HYM-22524-B02 ; recordNumber: BC-ZSM-HYM-22524-B02; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-22524-B02; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Hungary; decimalLatitude: 47.22; decimalLongitude: 16.313; 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-B09; catalogNumber: BC-ZSM-HYM-22524-B09 ; recordNumber: BC-ZSM-HYM-22524-B09; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-22524-B09; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Hungary; decimalLatitude: 47.22; decimalLongitude: 16.313; 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-D03; catalogNumber: BC-ZSM-HYM-22524-D03 ; recordNumber: BC-ZSM-HYM-22524-D03; recordedBy: J. Straka; individualID: BC-ZSM-HYM-22524-D03; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: decimalLatitude: 49.719; decimalLongitude: 10.158; 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-A06; catalogNumber: BC-ZSM-HYM-27760-A06 ; recordNumber: BC-ZSM-HYM-27760-A06; recordedBy: J.S. Noyes; individualID: BC-ZSM-HYM-27770-A06; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Romania; decimalLatitude: 46.9853; decimalLongitude: 27.5847; 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-A11; catalogNumber: BC-ZSM-HYM-22524-A11 ; recordNumber: BC-ZSM-HYM-22524-A11; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-22524-A11; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Hungary; decimalLatitude: 47.22; decimalLongitude: 16.313; 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-A12; catalogNumber: BC-ZSM-HYM-22524-A12 ; recordNumber: BC-ZSM-HYM-22524-A12; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-22524-A12; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Hungary; decimalLatitude: 47.22; decimalLongitude: 16.313; 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-B03; catalogNumber: BC-ZSM-HYM-22524-B03 ; recordNumber: BC-ZSM-HYM-22524-B03; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-22524-B03; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Hungary; decimalLatitude: 47.22; decimalLongitude: 16.313; 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-B05; catalogNumber: BC-ZSM-HYM-22524-B05 ; recordNumber: BC-ZSM-HYM-22524-B05; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-22524-B05; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Hungary; decimalLatitude: 47.22; decimalLongitude: 16.313; 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-B08; catalogNumber: BC-ZSM-HYM-22524-B08 ; recordNumber: BC-ZSM-HYM-22524-B08; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-22524-B08; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Hungary; decimalLatitude: 47.22; decimalLongitude: 16.313; 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-B11; catalogNumber: BC-ZSM-HYM-22524-B11 ; recordNumber: BC-ZSM-HYM-22524-B11; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-22524-B11; individualCount: 1; sex: male; lifeStage: adult; Taxon: scientificName: Tetrastichustacitus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Hungary; decimalLatitude: 47.22; decimalLongitude: 16.313; Record Level: type: PhysicalObject; language: en; basisOfRecord: PreservedSpecimen

Description

FEMALE holotype (Fig. 13). Body length 1.7 mm (paratypes 1.5-1.7 mm). Head. Width/length (dorsal view) 2.2, width/length (frontal view) 1.3, POL/OOL 2.1, widths head/mesosoma 1.1, mouth width/malar space 1.1, 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 2.0, 1.8, 1.2, clava length/width 2.7, lengths pedicel/F1 0.8, lengths F1/F2 1.1, F1/F3 1.3, lengths F1, F2, F3/clava 0.5, 0.5, 0.4, widths F1/pedicel (dorsal view) 1.0, lengths antennal spicule/C3 0.5. Mesosoma. Length/width 1.4, mesoscutal mid-lobe length/width (width measured in anterior part) 0.9, 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 0.8, length/width of enclosed space between submedian grooves 2.2, distance between SMG/distance between SMG and SLG 1.7, lengths dorsellum/propodeum (measured medially) 0.5, propodeum with strong reticulation, propodeal callus with three setae. Fore wing. Costal cell length/width 8.7, lengths costal cell/marginal vein 0.9, lengths marginal/stigmal veins 3.1. Gaster. Subcircular to ovate, length/width 1.5, lengths gaster/mesosoma 1.1, Gt7 length/width 0.5, length longest cercal seta/next longest seta 1.8, longest cercal seta almost straight, ovipositor sheaths projecting distinctly beyond apex of Gt7.

Colour. Body with weak metallic green tinges, scape, pedicel and flagellum dark brown, tegulae dark brown, wings hyaline with veins yellowish-brown to brown, coxae and femora concolorous with body, trochanters dark brown, tibiae yellowish-brown, fore tarsus pale brown, mid and hind tarsi yellowish-brown with T4 dark brown.

Variation. Scape pale brown in some paratypes.

MALE. Body length 1.2-1.5 mm. Head. Width/length (dorsal view) 1.8, width/length (frontal view) 1.1, mouth width/malar space 1.1, eye height/malar space 1.4, widths head/mesosoma 0.9. Antenna. F1-F4 with basal whorls of setae, these setae reaching beyond apex of flagellomere attached to, scape length/eye height 0.9, scape length/width 2.9, ventral plaque placed in central part of scape, lengths ventral plaque/scape 0.6, pedicel+flagellum length/mesosoma width 1.6, length/width F1, F2, F3, F4 2.0, 2.8, 2.8, 2.7, clava length/width 6.0, lengths pedicel/F1 1.0, lengths F1/F2 0.7, F1/F3 0.7, F1/F4 0.8, lengths F1, F2, F3, F4/clava 0.3, 0.4, 0.4, 0.4.

Colour. Similar to female but scape always dark brown and tibiae brown in some specimens.

Diagnosis

Female with antennal clava (incl. spicule) 2.7 × as long as wide; ovipositor sheaths protruding beyond apex of Gt7. Male with antennal clava 6.0 ×, F4 2.3 × and scape 2.9 × as long as wide.

Distribution

Germany, Hungary, Romania.

Ecology

Host

Unknown.

Notes

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