Revision of the Palearctic species of Macroglenes Westwood (Hymenoptera: Pteromalidae)

The Palearctic species of Macroglenes Westwood (Hymenoptera: Pteromalidae) are revised. A brief diagnosis is given for each species and distribution and hosts are summarized. Twenty species are regarded as valid, including eight described as new: M. caudatus sp. nov., M. gibsoni sp. nov., M. hokkaidensis sp. nov., M. incisiclypeatus sp. nov., M. japonicus sp. nov., M. noyesi sp. nov., M. samurai sp. nov., and M. zdeneki sp. nov. Macroglenes nigroclypeatus Amerling & Kirchner, 1860 is treated as nomen dubium. Stenophrus Förster is regarded as a synonym of Macroglenes Westwood, syn. nov. Consequently, Calypso Haliday and Euryophrys Förster are treated as synonyms of Macroglenes Westwood, syn. nov. Another two new synonyms and two new combinations are proposed: M. chalybeus Haliday = M. rasnitsyni (Dzhanokmen), syn. nov., M. penetrans (Kirby) = M. decipiens (Graham), syn. nov., Stenophrus compressus Förster = Macroglenes compressus (Förster), comb. nov., and Pirene yuasai Ishii = Macroglenes yuasai (Ishii), comb. nov. New distributional data are given for eight species. The association between M. gramineus (Haliday) and Contarinia tritici (Kirby) (Diptera: Cecidomyiidae) is published for the first time, as well as several parasitoid-plant associations.

Contarinia tritici. [Distribution map].

A new distribution map is provided for Contarinia tritici (Kirby) Diptera: Cecidomyiidae (lemon wheat blossom midge, yellow wheat gall midge). Attacks mainly wheat but occasionally recorded from other hosts, including barley, rye and couch-grass. Information is given on the geographical distribution in Europe, Austria, Belgium, Bulgaria, Czechoslovakia, Denmark, Finland, France, Germany, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Romania, Sweden, Switzerland, United Kingdom, Yugoslavia, CIS (formerly USSR), Russian SFSR, Bashkir, Irkutsk region, Smolensk region, Stavropol, Sverdlovsk region, Ukraine, Africa, Tunisia, Asia, China, Hubei, Iran, Israel, Japan, Australasia, New Zealand.

Contarinia tritici. [Distribution map].

A new distribution map is provided for Contarinia tritici (Kby.) (Dipt., Cecidomyiidae) (Lemon Wheat Blossom Midge). Hosts: Wheat, rye and couch-grass. Information is given on the geographical distribution in EUROPE (excl. USSR), Austria, Belgium, Britain, Czechoslovakia, Denmark, Finland, France, Germany, Hungary, Ireland, Italy, Luxembourg, Netherlands, Norway, Poland, Rumania, Sweden, Switzerland, Yugoslavia, ASIA, Japan, Persia, USSR, AFRICA, Tunisia.

Wheat Blossom Midges (Cecidomyidae, Diptera). Differences between Contarinia tritici (Kirby) and Sitodiplosis mosellana (Géhin)

It is highly regrettable that in the past whenever Cecidomyid or midge larvae have been found in ears of wheat the presumption has been that the species concerned was the wheat midge, and it was therefore recorded as Contarinia tritici (Kirby).