Tetrastichus decrescens Graham, 1991

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

publication ID	https://dx.doi.org/10.3897/BDJ.8.e59177
publication LSID	lsid:zoobank.org:pub:AD70B3AB-6763-4D28-85F2-90988225C5C8
persistent identifier	https://treatment.plazi.org/id/76BD41F5-8899-5259-A710-C9919A42CE01
treatment provided by	Biodiversity Data Journal by Pensoft
scientific name	Tetrastichus decrescens Graham, 1991
status

Treatment

Tetrastichus decrescens Graham 1991:271-272. Holotype ♀ in NHM, examined (Fig. 43).

Description

See Graham (1991). Male is unknown.

Diagnosis

Antenna with F1 1.5 × as long and 1.4 × as wide as pedicel; mesoscutellum with distance between submedian grooves 1.2 × the distance between submedian and sublateral grooves; female gaster elongate-acuminate, 2.0-2.2 × as long as wide, ovipositor sheaths reach beyond apex of Gt7.

Distribution

(Former) Czechoslovakia, France, Sweden and United Kingdom ( Graham 1991).

Ecology

Host

Unknown.

Material examined

Type material: holotype ♀ (NHM, type no. 5.3631). Additional material (7♀): France 1♀ (GD), Sweden 6♀ (MZLU, SMTP).