A revision of European species of the genus Tetrastichus Haliday (Hymenoptera: Eulophidae) using integrative taxonomy Author Hansson, Christer The Natural History Museum, London, United Kingdom & Biological Museum (Entomology), Lund University, Lund, Sweden christerdennis@gmail.com Author Schmidt, Stefan https://orcid.org/0000-0001-5751-8706 SNSB-Zoologische Staatssammlung Muenchen, Munich, Germany schmidt.s@snsb.de text Biodiversity Data Journal 2020 2020-12-16 8 59177 59177 http://dx.doi.org/10.3897/BDJ.8.e59177 journal article http://dx.doi.org/10.3897/BDJ.8.e59177 1314-2828-8-e59177 AD70B3AB67634D2885F290988225C5C8 2BC7CCC36D765F1C87ACBE8025DFD848 Tetrastichus pixius sp. n. Materials Type status: Holotype . Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-26563-A02; catalogNumber: BC-ZSM-HYM-26563-A02 ; recordNumber: BC-ZSM-HYM-26563-A02; recordedBy: C. Hansson ; individualID: BC-ZSM-HYM-26563-A02; individualCount: 1 ; sex: female ; lifeStage: adult ; Taxon: scientificName: Tetrastichuspixius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; taxonRemarks: Holotype deposited in MZLU; Location: country: Sweden ; decimalLatitude: 55.6619 ; decimalLongitude: 13.5472 ; 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-26563-A04; catalogNumber: BC-ZSM-HYM-26563-A04 ; recordNumber: BC-ZSM-HYM-26563-A04; recordedBy: C. Hansson ; individualID: BC-ZSM-HYM-26563-A04; individualCount: 1 ; sex: female ; lifeStage: adult ; Taxon: scientificName: Tetrastichuspixius; 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-26563-A03; catalogNumber: BC-ZSM-HYM-26563-A03 ; recordNumber: BC-ZSM-HYM-26563-A03; recordedBy: C. Hansson ; individualID: BC-ZSM-HYM-26563-A03; individualCount: 1 ; sex: female ; lifeStage: adult ; Taxon: scientificName: Tetrastichuspixius; 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-21587-C11; catalogNumber: BC-ZSM-HYM-21587-C11 ; recordNumber: BC-ZSM-HYM-21587-C11; recordedBy: C.Hansson ; individualID: BC-ZSM-HYM-21587-C11; individualCount: 1 ; sex: female ; lifeStage: adult ; Taxon: scientificName: Tetrastichuspixius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden ; decimalLatitude: 55.84 ; decimalLongitude: 13.58 ; 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-22523-D06; catalogNumber: BC-ZSM-HYM-22523-D06 ; recordNumber: BC-ZSM-HYM-22523-D06; recordedBy: Swedish Malaise Trap Project ; individualID: BC-ZSM-HYM-22523-D06; individualCount: 1 ; sex: female ; lifeStage: adult ; Taxon: scientificName: Tetrastichuspixius; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden ; decimalLatitude: 56.9216 ; decimalLongitude: 16.1012 ; Record Level: type: PhysicalObject; language: en; institutionCode: SMTP ; basisOfRecord: PreservedSpecimen Description FEMALE holotype (Fig. 53 ). Body length 1.6 mm (paratypes 1.3-1.6 mm). Head . Width/length in dorsal view 2.3, width/length in frontal view 1.2, POL/OOL 1.9, widths head/mesosoma 1.1, mouth width/malar space 0.9, malar space/eye height 0.8. Antenna . Scape length/eye height 0.9, pedicel+flagellum length/mesosoma width 1.3, length/width F1, F2, F3 1.5, 1.6, 1.4, clava length/width 3.9, lengths pedicel/F1 1.0, lengths F1/F2 0.9, F1/F3 0.9, lengths F1, F2, F3/clava 0.3, 0.4, 0.4, widths F1/pedicel (dorsal view) 1.3, lengths antennal spicule/C3 0.3. Mesosoma . Length/width 1.4, mesoscutal mid-lobe length/width 1.0 (width measured in anterior part), mid-lobe with median groove in posterior 1/2 , with three 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 2.7, distance between SMG/distance between SMG and SLG 1.0, lengths dorsellum/propodeum 0.7, propodeum with strong reticulation, propodeal callus with two setae. Fore wing . Costal cell length/width 13.5, lengths costal cell/marginal vein 1.0, lengths marginal/stigmal veins 3.3. Gaster . Ovate, length/width 1.3, lengths gaster/head+mesosoma 0.9, Gt7 length/width 0.4, length of longest cercal seta/next longest seta 1.5, longest cercal seta almost straight, ovipositor sheaths not reaching apex of Gt7. Colour. Body with weak metallic blue tinges, entire antenna dark brown, tegulae dark brown, wings hyaline with venation yellowish-white, coxae and femora concolorous with body, trochanters dark brown, fore tibia yellowish-brown, mid and hind tibiae brownish, fore tarsus brown, mid and hind tarsi yellowish-brown with T3-4 brown. MALE. Unknown. Diagnosis Female gaster ovate, 1.3 x as long as wide. See key for separation from similar species. Distribution Sweden. Ecology Host Unknown. Notes Holotype deposited in MZLU, paratypes in MZLU and SMTP.