Tetrastichus delvarei, 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 delvarei sp. n.

Materials

Type status: Holotype. Occurrence: occurrenceDetails: http://www.boldsystems.org/index.php/API_Public/specimen?ids=BC-ZSM-HYM-29813-E02; catalogNumber: BC-ZSM-HYM-29813-E02 ; recordNumber: BC-ZSM-HYM-29813-E02; recordedBy: G.Delvare; individualID: BC-ZSM-HYM-29813-E02; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusdelvarei; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; taxonRemarks: Holotype deposited in NHM; Location: country: France; decimalLatitude: 44.124; decimalLongitude: 5.18037; 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-25459-G08; catalogNumber: BC-ZSM-HYM-25459-G08 ; recordNumber: BC-ZSM-HYM-25459-G08; recordedBy: D. Doczkal; individualID: BC-ZSM-HYM-25459-G08; individualCount: 1; sex: female; lifeStage: adult; Taxon: scientificName: Tetrastichusdelvarei; phylum: Arthropoda; class: Insecta; order: Hymenoptera; family: Eulophidae; genus: Tetrastichinae; Location: country: Germany; decimalLatitude: 50.027; decimalLongitude: 9.8; Record Level: type: PhysicalObject; language: en; institutionCode: ZSM; basisOfRecord: PreservedSpecimen

Description

FEMALE holotype (Fig. 60). Body length 2.1 mm. Head. Width/length in dorsal view 2.4, width/length in frontal view 1.2, POL/OOL 1.8, widths head/mesosoma 1.1, mouth width/malar space 1.1, malar space/eye height 0.7. Antenna. Scape length/eye height 0.8, pedicel+flagellum length/mesosoma width 1.3, length/width F1, F2, F3 2.6, 2.6, 1.9, clava length/width 3.4, lengths pedicel/F1 0.5, lengths F1/F2 1.0, F1/F3 1.2, lengths F1, F2, F3/clava 0.6, 0.6, 0.5, width F1/pedicel (dorsal view) 1.1, lengths antennal spicule/C3 0.2. Mesosoma. Length/width 1.5, mesoscutal mid-lobe length/width 0.9 (width measured in anterior part), mid-lobe with median groove almost complete, missing in very anterior part, with four adnotaular setae on each side, lengths mesoscutum/mesoscutellum (measured medially) 1.2, lengths dorsellum/propodeum 0.7, mesoscutellum length/width 0.9, length/width of enclosed space between submedian grooves 2.4, distance between SMG/distance between SMG and SLG 1.6, propodeum with strong reticulation, propodeal callus with six setae. Fore wing. Costal cell length/width 10.3, lengths costal cell/marginal vein 0.9, lengths marginal/stigmal veins 3.2. Gaster. Elongate, length/width 2.3, lengths gaster/mesosoma 1.4, Gt7 length/width 1.0, lengths longest cercal seta/next longest seta nm, ovipositor sheaths reaching beyond apex of Gt7.

Colour. Body with weak metallic bluish-green tinges, scape pale brown with dorsal edge dark brown, pedicel and flagellum dark brown, tegulae dark brown, wing venation yellowish-white, coxae concolorous with body, trochanters dark brown, fore and mid femora dark brown with apex yellowish-brown, hind femur concolorous with body, fore tibia yellowish-brown, mid tibia pale brown with apex yellowish-brown, hind tibia dark brown with apex yellowish-brown, tarsi with T1-3 yellowish-brown and T4 brown.

MALE. Unknown.

Diagnosis

Similar to T. agrilocidus , but differs in having a shorter gaster, 1.4 × as long as length of mesosoma and with antennal flagellomeres shorter and clava longer.

Etymology

Named after the collector of holotype, Gerard Delvare (CIRAD).

Distribution

France.

Ecology

Host

Unknown.

Notes

Holotype deposited in NHM, paratype in ZSM.