which attack cereal crops. 607 
The description given by Fallen (Diptera Suec. Os- 
cinides, p. 7) is more precise :-— 
Corpus pulice sepius minus, agile, nigrum nitidum, 
oculi maximi globosi. Caput antice convexum nigrum ; 
vertice brevissime setoso, macula magna triangulari 
nitidissima. Antenne nigre, seta geniculata. Pedes 
nigri, tarsis flavo-albis. Alz abdomine longiores hyaline, 
nervis ut in reliquis hujus sectionis speciebus directis ; 
nervo scilicet 4to longitudinali cum nervo costali in apice 
ale conjuncto nervisque transversis paullo distantibus. 
Halteres albi. Venter in femina viva pallidus. 
Var. 2. Tarsis pallidis. 
Var. 3. Alis nigricantibus tibiis tarsisque albidis in 
medio nigris. 
Var. 4. Metatarso albo. 
Obs. Ab Oscine maura vix differt nisi magnitudine 
minor antennarumque seta obscuriore nec distincte alba. 
Zetterstedt, inthe ‘Insecta Lapponica,’ col. 781 and 
‘Dipt. Scandinavie,’ p. 2646, vol. xi., p. 43887, gives 
but a short description of Oscinis Frit, as follows :— 
“Tota nigra, antennarum seta pedibusque concolori- 
bus tarsis pallidis, alis hyalinis halteribus albis. Minu- 
tissima vix } lin. long. tota nigra nitida halteribus 
tarsisque presertim posticis tantum pallidis. In ceteris 
O. pusille similis. Oculiin vivo enei. Varietas, meta- 
tarso tantum albo Fall. Dipt. Sv. Oscin. 7, 9, var. 4. 
Antennarum seta in hac specie nigra vel fusca est. 
In the Appendix to his ‘ Dipt. Scandinavie,’ vol. xi., 
p- 4479, Zetterstedt gives Fallen’s third variety of Oscinis 
Frit as = Oscinis pusilla, Zett., vol. vil., p. 2649. 
In Mr. Haliday’s memoir on the identification of the 
Linnean species of Diptera published in the ‘ Stettiner . 
Entomol. Zeitung,’ 1851, p. 144, founded on an exami- 
nation of the Linnean Cabinet of Insects at the Linnean 
Society, is the following observation :—‘‘ Musca Frit : 
drei exempl. auf Karte gekleft mit eimer Puppe =Oscinis 
vastator and granaria, Curtis (Musca hordei, Bjerkander 
Act. Holm.). 
