Tetrastichus leocrates (Walker, 1839)

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 leocrates (Walker, 1839)

Cirrospilus Walker 1839a:319. Lectotype ♂ in NHM, designated by Graham 1961:38, examined (Fig. 75). Transferred to Tetrastichus by Walker 1848:150, to Aprostocetus by Graham 1961:38 and back to Tetrastichus by Domenichini 1966:90.

Description

See Graham (1991).

Diagnosis

The female is similar to the female of T. miser and difficult to separate by morphology; male antenna is without whorls of setae on F1-F4, which separates it from males of the very similar T. miser , in which males have these whorls.

Distribution

Denmark, Finland, France, Italy, Spain, United Kingdom ( Graham 1991) and Sweden ( Hedqvist 2003).

Ecology

Host

Rhynchaenus alni (L.) ( Graham 1991), R. testaceus ( Müller) (new record) ( Coleoptera : Curculionidae ).

Material examined

Type material: lectotype ♀ of C. leocrates (NHM, type no. 5.1938). Additional material: Sweden 19♀ 21♂ (NHM, MZLU, SMTP, ZSM).