Stratiomyiidae. 17 



Sargus; of microleori can scarcely be said more tlian that it is a 

 Stratiomijki or Odontomyia, and polita is probal:)ly this species. Fabricius 

 in liis first woric 1775 (Syst. Ent.), has two species from Denmark, 

 Stratiomys tigrina and viridula, both new; these two well knovvn 

 species are thus established on specimens from Denmark; in his 

 following works he only enumerates the same two species from Den- 

 mark, but in his last work in 1805 (Syst. Antl.), he has moreover 

 Sargus cyanens, which is Microchrysa polita. Zetterstedt in 1842 (Dipt. 

 Scand. I) enumerates, as sent him by Stæger : Ber. clavipes, Str. cha- 

 mæleon,strigata = longicornis, ornata, hydrohon, Ox.trUineata,formosa, 

 Nem. bifusciatiis = uliginosiis, notatus, nigrinus, Chr.forniosa, paUipes = 

 flavicornis, Sarg.cuprarius, infuscatus ^ ir idatus and flavipes. In 1849, 

 (VIII), he adds moreover Str.potamida, argentata, ruficornis^angidata, 

 Ox.hypoleon= Fallenii, Meigenii and Sarg. nitidus; as the latter is the 

 same as iridatus (see under this species) he thus knew in all 20 species. 

 Of these Stæger had already in 1844 (Sett. Ent. Zeit. V.) recorded 



0. FaUenii and Meigenii, and Schiødte had in 1844 (Nat. Tidsskr. 2. I, 40) 

 recorded Od. argentata, Ox. Meigenii and also Ox. leonina, which latter 

 is overlooked by Zetterstedt. Thus there were known in all 21 species. — 

 In the present work 34 species are ennmerated. 



Tahle of Subfamilies and Genera. 



1. Abdomen consisting of seven segments, scutellum with 



more than two spines 5. Beridinae. 



— Abdomen consisting of five to six segments, scutellum 

 unarmed or with two spines 2. 



2. From the discai cell rise three veins, anterior branch 

 of the postieal vein closing the discai cell below ; 



tour posterior cells 1. Pachygastrinae. 



— From the discai cell or from the discai and second 

 basal cells rise four veins (one or two of which may 

 be rudimentary or wanting) ; five posterior cells (some 



of which may be more or less fused) 3. 



3. Fifth posterior cell lying close to the discai cell, no 



cross-vein belween discai cell and postieal vein .... 2. Clitellariinae. 



— Fifth posterior cell not lying close to the dicsal cell, 

 a cross-vein between the discai cell and the postieal 



vein 4. 



4. Scutellum with two spines; not metallic coloured 



species 3. Stratiomyiinae. 



— Scutellum unarmed, metallic coloured species 4. Sarginae. 



1. Pachygastrinae. 

 Scutellum unarmed; abdomen consisting of five segments. From 

 the discai cell rise three veins, the third is the anterior branch ofthe 



