ATTEMPTED DIVISION OF BRITISH INSECTS. 395 



Eumerus, Psilota, Chrysogaster, Pipiza, Cheilosia, Scceva, Syr- 

 phiis, Eristalis, Helophilus, Tropidia, Xylota, Spilomyia, Milesia, 

 Merodon, Criorhina, Sericomyia, Volucella, Brachiopa, Rhingia. 



Stirps. — MUSCINA. 



Natural Order.— Muscites, Flies. ' 



Larva obese, but capable of great elongation and attenuation ante- 

 riorly ; inhabits and feeds on dung, putrid flesb and vegetables, 

 bark and roots of trees, recent and putrescent fungi, and the 

 larvae of other insects. Pupa changes in similar situations, 

 oblong, perfectly uniform and rounded as though turned in a 

 lathe. Imago with the apical seta of the antennae tri-articulate ; 

 labium elongate, dilated at the extremity, retractile ; alulae of the 

 wings distinct and conspicuous ; body hairy ; form obese ; colour 

 black, brown, or grey, with metallic green and blue, Phasia, 

 Gymnosoma, Phania, Miltogramma, Gonia, Trixa, Tachina, Echi- 

 onomyia, Melanophora, Leucostoma, Metopia, Exorista, Eriothrix, 

 Ocypteryx, Dexia, Mesembrina, Sarcophaga, Musca, Anthomyia, 

 Ccenosia, Lispe, and the numerous genera which have been sepa- 

 rated from these. 



Natural Order. — Scatophagites, Dung-flies. 



Larva inhabits dung, fungi, putrid substances, and the pith of plants. 

 Pupa as in the Muscites. Imago with the apical seta of the 

 antennae obscurely triarticulate ; labium elongate, slightly re- 

 curved, scarcely dilated, retractile ; alulae of the wings very 

 minute ; body very hairy ; form oblong ; colour yellow. Scato- 

 phaga, Dryomyza, Sapromyza. 



Natural Order. — Tetanocerites. 



Larva inhabits moist plants, fruits, putrid substances, also mud at 

 the banks of ponds, rivers, and all wet places. Pupa as in the 

 Muscites. Imago with the apical seta of the antennae exarticu- 

 late ; labium short and broad ; alulae of the wings wanting ; 

 wings narrow ; form elongate, often very slender : glabrous, not 

 hairy ; colour black, black with yellow spots, brown or yellowish. 

 Ortalis, Sepsis, Lonchcea, Luuxania, Ulidia, Piophila, Psila, 

 Calobata, Micropeza, Tetanocera, Loxocera, Heteromyza, Platy- 

 cephala, Sciomyza, Lucina, Chryliza, Lissa, Platystoma, Sepedon, 

 Dorycera, and the genera separated from these. 



