354 Mr. A. H. Haliday’s Descriptions of Dipterous Insects. 
viridis: Hypostoma et barba candide: Femora nigra anteriora genubus 
fuscis, postica basi angustius pallida: Tibiz fusco-ferruginee, postice apice 
fuscze: Tarsi anteriores basi ferruginei : Femora antica dense nigro villosa. 
Lamelle sinuate exserte, que forma Meigenio audit “ fils analibus 3 
furcatis.” 
*| Not uncommon on the sea-coast al Holywood: I have femaies also 
from Richmond Park.] 
*Add. Labrum lanceolatum, mandibulis sub eodem brevioribus 
extricatis: Lingua subuliformis longior: Maxille lobo minimo trigono 
intra basin palporum vix detegendo. 
tIn omni specie ex hac familia adesse videntur mandibule discrete 
plerumque cultrate, sed in pluribus (ex. gr. Generibus Dolichopo, Mede- 
tero, &c.) invicem adpresse ideoque auctoribus erroreaccepte. Maxille 
stipes linearis rigidus haustelli lateribus est adnatus et lobus vix nisi in 
Genere Macherio conspicuus. 
5. insulsus. P. obscure viridi-eneus, hypostomate aterrimo, antennis 
pedibusque nigris, tibiis ferrugineis, posticis compressis basi 
pallide flavis apice clavatis atris. (Mas. ) 
Long. corp. 23. 
Color obscurior quam in precedente: Abdomen brevius et pedes 
postici longiores: Frons fere nigra: Hypostoma et barba atre: Femora 
omnia atra, postica latiora, cox antice nigro-yillose: Tarsi antici maris 
simplices apice nigri: Tibie postice longiores sinuato-compresse : 
Lamelle haud exserte. 
4 A single male taken on the coast near Holywood.] 
6. rufipes. Meig. IV, 52, 14. 
@ Several females ibid.] 
7. obscuratus. Meig. IV, 55, 21. 
q A single female ibid.} 
C. Antennarum setd dorsali ante apicem articult tertii insertd. 
Porphyrops. 
8. diaphanus. Meig. IV, 46, 1. 
Fabr, Syst. Antl. 270, 18. 
| Taken near Holywood, but rare.] 
9. fulgens. P. argenteo micans, thorace viridi-aureo, abdominis 
