Tetrastichus cyprus, 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 cyprus sp. n.

Description

FEMALE holotype (Fig. 23). Body length 2.0 mm (paratypes 1.7-2.3 mm). Head. Width/length in dorsal view 2.4, width/length in frontal view 2.0, POL/OOL 1.5, widths head/mesosoma 1.2, mouth width/malar space 1.9, malar space/eye height 0.7. Antenna. Scape length/eye height 1.0, pedicel+flagellum length/mesosoma width 1.1, length/width F1, F2, F3 1.5, 1.4, 1.3, clava length/width 2.7, lengths pedicel/F1 0.8, lengths F1/F2 1.1, F1/F3 1.2, lengths F1, F2, F3/clava 0.5, 0.5, 0.4, widths F1/pedicel (dorsal view) 1.5, lengths antennal spicule/C3 0.3. Mesosoma. Length/width 1.4, mesoscutal mid-lobe length/width (width measured in anterior part) 0.9, mid-lobe with median groove in posterior ⅓, with four adnotaular setae on each side, lengths mesoscutum/mesoscutellum (measured medially) 1.3, mesoscutellum length/width 0.9, length/width of enclosed space between submedian grooves 2.7, distance between SMG/distance between SMG and SLG 1.4, lengths dorsellum/propodeum 0.5, propodeum with weak reticulation, propodeal callus with three setae. Fore wing. Costal cell length/width 10.6, lengths costal cell/marginal vein 1.1, lengths marginal/stigmal veins 3.0. Gaster. Subcircular to ovate, length/width 1.3, lengths gaster/mesosoma 1.2, Gt7 length/width 0.7, length of longest cercal seta/next longest seta 0.6, longest cercal seta straight, ovipositor sheaths not reaching apex of Gt7.

Colour. Body with metallic greenish-blue, entire antenna dark brown, tegulae black, wings hyaline with veins yellowish-brown to brown, coxae concolorous with body, trochanters dark brown, fore and mid femora dark brown, hind femur concolorous with body, tibiae and tarsi yellowish-brown.

MALE. Unknown.

Diagnosis

Similar to T. halidayi with the wide mouth and large and oddly-shaped mandibles (as in Figs. 2a and 65d). Differs from T. halidayi in having female gaster short ovate, 1.3 × as long as wide, ovipositor sheaths short and not visible in dorsal view, cerci on gaster placed ventrally and not visible in dorsal view, setae on vertex shorter, 0.45 × OD and body strongly metallic.

Distribution

Cyprus.

Notes

The specimens in the type series are not in pristine condition, all specimens being more or less broken and dirty. The holotype is missing right wing pair and right pedicel+flagellum is broken off and glued separately to the card.

Host

Reared from an unidentified Coleoptera and from an unidentified leaf miner on broad bean ( Vicia faba L.).

Material examined

Holotype ♀ "CYPRUS, Phlasson, 30.XII.1967, G.P. Georghiou. Parasite of Coleoptera #521" (UCRC). Paratypes (3♀): 2♀ with same label data as holotype (UCRC), 1♀ from same locality and date as holotype, but ex leaf miner on broad bean (UCRC).