Tetrastichus evexus, 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 evexus sp. n.

Materials

Type status: Holotype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-25460-A01; catalogNumber: BC-ZSM-HYM-25460-A01 ; recordNumber: BC-ZSM-HYM-25460-A01; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-25460-A01; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusevexus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; taxonRemarks: Holotype deposited in MZLU; Location: country: Sweden; decimalLatitude: 55.6847; decimalLongitude: 13.6767; 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-F10; catalogNumber: BC-ZSM-HYM-13565-F10 ; recordNumber: BC-ZSM-HYM-13565-F10; recordedBy: Bo. W. Svensson; individualID: BC-ZSM-HYM-13565-F10; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusevexus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.605; decimalLongitude: 13.004; 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-F09; catalogNumber: BC-ZSM-HYM-13565-F09 ; recordNumber: BC-ZSM-HYM-13565-F09; recordedBy: B. W. Svensson & Co.; individualID: BC-ZSM-HYM-13565-F09; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusevexus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.605; decimalLongitude: 13.004; 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-25460-A04; catalogNumber: BC-ZSM-HYM-25460-A05 ; recordNumber: BC-ZSM-HYM-25460-A05; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-25460-A05; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusevexus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.6847; decimalLongitude: 13.6767; 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-A04; catalogNumber: BC-ZSM-HYM-25460-A04 ; recordNumber: BC-ZSM-HYM-25460-A04; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-25460-A04; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusevexus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.6847; decimalLongitude: 13.6767; 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-A03; catalogNumber: BC-ZSM-HYM-25460-A03 ; recordNumber: BC-ZSM-HYM-25460-A03; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-25460-A03; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusevexus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.6847; decimalLongitude: 13.6767; 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-A02; catalogNumber: BC-ZSM-HYM-25460-A02 ; recordNumber: BC-ZSM-HYM-25460-A02; recordedBy: C. Hansson; individualID: BC-ZSM-HYM-25460-A02; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusevexus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Sweden; decimalLatitude: 55.6847; decimalLongitude: 13.6767; 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-B11; catalogNumber: BC-ZSM-HYM-27760-B11 ; recordNumber: BC-ZSM-HYM-27760-B11; recordedBy: J.S. Noyes; individualID: BC-ZSM-HYM-27770-B11; individualCount: 1; sex: M; lifeStage: a; reproductiveCondition: S; associatedMedia: http://www.boldsystems.org/pics/BCHYM/BC-ZSM-HYM-27760-B11+1449268734.jpg; Taxon: scientificName: Tetrastichusevexus; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichus; Location: country: Romania; locality: Breazu MT rzeski ; decimalLatitude: 47.2442; decimalLongitude: 27.4828; Identification: identifiedBy: Christer Hansson

Description

FEMALE holotype (Fig. 25). Body length 2.3 mm (paratypes 1.9-2.0 mm). Head. Width/length in dorsal view 2.1, width/length in frontal view 1.3, POL/OOL 2.1, widths head/mesosoma 1.1, mouth width/malar space 1.1, malar space/eye height 1.0. Antenna. Scape length/eye height 1.1, pedicel+flagellum length/mesosoma width 1.2, length/width F1, F2, F3 1.8, 2.0, 1.7, clava length/width 3.9, lengths pedicel/F1 0.8, lengths F1/F2 0.9, F1/F3 1.0, lengths F1, F2, F3/clava 0.4, 0.5, 0.4, widths F1/pedicel (dorsal view) 1.1, lengths antennal spicule/C3 0.3. Mesosoma. Length/width 1.5, mesoscutal mid-lobe length/width 0.9 (width measured in anterior part), mid-lobe with median groove in posterior ¾, with four adnotaular setae on each side, lengths mesoscutum/mesoscutellum (measured medially) 1.2, mesoscutellum length/width 0.9, length/width of enclosed space between submedian grooves 2.7, distance between submedian/distance between submedian and sublateral grooves 1.4, lengths dorsellum/propodeum (measured medially) 0.5, propodeum with strong reticulation, propodeal callus with nine setae. Fore wing. Costal cell length/width 8.0, lengths costal cell/marginal vein 1.0, lengths marginal/stigmal veins 2.6. Gaster. Subcircular to ovate, length/width 1.6, lengths gaster/mesosoma 1.1, Gt7 length/width 0.4, length of longest cercal seta/next longest seta 1.2, longest cercal setae curved, almost straight, ovipositor sheaths not reaching apex of Gt7.

Colour. Body metallic blue-green, scape yellowish-brown with dorsal edge darker, pedicel and flagellum dark brown, tegulae black with metallic tinge, wings hyaline with veins yellowish-white, coxae concolorous with body, trochanters dark brown, fore and mid femora dark brown with metallic tinges and with apical ⅓ yellowish-brown, hind femur concolorous with body, tibiae yellowish-brown, fore tarsus dark brown, mid and hind tarsi yellowish-brown with T4 dark brown.

MALE. Unknown.

Diagnosis

Tibiae yellowish-brown; female with malar space 1.0 × eye height; scape 3.6 × and antennal clava 3.9 × as long as wide; mesoscutellum with ratio distance between submedian grooves to distance between submedian and sublateral grooves 1.4. Similar to T. helviscapus , but with longer antennal clava in female, 3.9 × as long as wide.

Distribution

Sweden.

Notes

Holotype deposited in MZLU, paratypes in MZLU and NHM.

Host

Unknown.