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 nymphae sp. n. Materials Type status: Holotype . Occurrence: recordedBy: R. Gregorek & M. Suvak ; individualID: BC-ZSM-HYM-26562-H10; individualCount: 1 ; sex: female ; lifeStage: adult ; Taxon: scientificName: Tetrastichusnymphae; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; taxonRemarks: Holotype deposited in MZLU; Location: country: Slovakia ; decimalLatitude: 48.3689 ; decimalLongitude: 21.705 ; 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-26562-H11; catalogNumber: BC-ZSM-HYM-26562-H11 ; recordNumber: BC-ZSM-HYM-26562-H11; recordedBy: R. Gregorek & M. Suvak ; individualID: BC-ZSM-HYM-26562-H11; individualCount: 1 ; sex: female ; lifeStage: adult ; Taxon: scientificName: Tetrastichusnymphae; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Slovakia ; decimalLatitude: 48.3689 ; decimalLongitude: 21.705 ; 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-26562-H10; catalogNumber: BC-ZSM-HYM-26562-H10 ; recordNumber: BC-ZSM-HYM-26562-H10; recordedBy: R. Gregorek & M. Suvak ; individualID: BC-ZSM-HYM-26562-H10; individualCount: 1 ; sex: male ; lifeStage: adult ; Taxon: scientificName: Tetrastichusnymphae; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Slovakia ; decimalLatitude: 48.3689 ; decimalLongitude: 21.705 ; Record Level: type: PhysicalObject; language: en; institutionCode: MZLU ; basisOfRecord: PreservedSpecimen Description FEMALE holotype (Fig. 51 ). Body length 1.3 mm (paratypes 1.4 mm). Head. Width/length in dorsal view 2.5, width/length in frontal view 1.2, POL/OOL 1.8, widths head/mesosoma 0.9, mouth width/malar space 1.4, malar space/eye height 0.5. Antenna. Scape length/eye height 0.9, pedicel+flagellum length/mesosoma width nm, length/width F1, F2, F3 1.3, 1.2, 1.1, clava length/width nm, lengths pedicel/F1 0.9, lengths F1/F2 1.0, F1/F3 1.1, lengths F1, F2, F3/clava nm, widths F1/pedicel (dorsal view) 1.0, lengths antennal spicule/C3 nm. Mesosoma. Length/width 1.3, mesoscutal mid-lobe length/width 0.8, mid-lobe with a weak median groove that is absent in anterior 1/4 , with three adnotaular setae on each side, lengths mesoscutum/mesoscutellum (measured medially) 1.2, mesoscutellum length/width 1.0, length/width of enclosed space between submedian grooves 1.2, distance between SMG/distance between SMG and SLG 2.1, lengths dorsellum/propodeum 0.6, propodeum with rather strong reticulation and partly smooth, propodeal callus with two setae. Fore wing. Costal cell length/width 11.0, lengths costal cell/marginal vein 1.0, lengths marginal/stigmal veins 2.5. Gaster. Ovate, length/width 1.5, lengths gaster/mesosoma 1.2, Gt7 length/width 0.6, length of longest cercal seta/next longest seta 2.0, longest cercal seta sinuate, ovipositor sheaths projecting beyond Gt7. Colour. Body dark brown to black non-metallic, antenna dark brown, tegulae black, wings hyaline with venation yellowish-brown, coxae, trochanters and femora concolorous with body, tibiae yellowish-brown, fore tarsus pale brown, mid and hind tarsi yellowish-brown with T4 brown. MALE. Body length 1.3 mm. Head. Width/length in dorsal view 2.5, width/length in frontal view 1.3, eye height/malar space 1.5, mouth width/malar space 1.2, widths head/mesosoma 1.1. Antenna. F1-F4 with basal whorls of setae, reaching beyond apex of corresponding flagellomere, whorled setae on F1 2.0 x as long as F1 length, scape length/eye height 1.0, scape length/width 2.6, ventral plaque placed centrally, lengths ventral plaque/scape 0.4, pedicel+flagellum length/mesosoma width 1.7, length/width F1, F2, F3, F4 1.3, 1.5, 1.4, 1.3, clava length/width 4.0, lengths pedicel/F1 1.2, lengths F1/F2 0.8, 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. Diagnosis Mesoscutellum +/- flattened, distance between submedian groove 2.1 x distance between submedian and sublateral grooves, female gaster ovate, 1.5 x as long as wide, with ovipositor sheaths reaching beyond apex of Gt7. Distribution Slovakia. Ecology Host Gregarious endoparasitoid on Galerucella nymphaeae (L.) ( Coleoptera : Chrysomelidae ) ( Suvak et al. 2012 parasitoid identified as Tetrastichus clito ). Remarks The type specimens are in poor condition, shrivelled and with parts missing: the holotype lacks antennal clava on both sides and left mid tibia and tarsus. Additional paratype examined 1 ♀, same data as holotype (MZLU). Notes Holotype deposited in MZLU, paratypes in MZLU.