DIPTERA. 227 



appearance the Musettes. Flies in the sunshine, settling 

 on flowers. Rhingia, Brachyopa. 



Flies or Muscites. Larva obese ; feeds on dung, putrid 

 flesh and vegetables, bark and roots of trees, fungi, &c. 

 Pupa changes in similar situations, oblong, perfectly uni- 

 form and rounded as though turned in a lathe. Imago 

 with the apical seta of the antenna triarticulate ; ligula 

 elongate, dilated at the extremity, retractile ; alula 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, Echinomyia, Melanophora, Leucostoma, Meto- 

 pia, Exorista, Eriothrix, Ocypteryx, Dexia, Mesembrina, 

 Sarcophaga, Musca, Anthomyia, Caenosia, Lispe. 



Dung-flies or Scatophagites. Larva inhabits dung, fungi, 

 putrid substances, and the pith of plants. Pupa as in the 

 Muscites. Imago with the apical seta of the antenna ob- 

 scurely triarticulate ; ligula elongate, slightly recurved, 

 scarcely dilated, retractile ; alula of the wings very minute ; 

 body very hairy ; form oblong ; colour yellow. Scatophaga, 

 Dryomyza, Sapromyza. 



Tetanocerites. Larva inhabits moist plants, fruit, pu- 

 trid 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 antennce exarticulate ; ligula 

 short and broad ; alula of the wings wanting; wings nar- 

 row ; form elongate, often very slender : glabrous or slightly 

 hairy ; colour black, black with yellow spots, brown or yel- 

 lowish. Ortalis, Sepsis, Lonchaa, Lauxania, Ulidia, 

 Piophila, Psila, Calobata, Micropeza, Tetanocera, Loxo- 

 cera, Heteromyza, Platycephala, Sciomyza, Lucina, Chry- 

 liza, Lissa, Platystoma, Sepedon, Dorycera. 



Variegated flies or Tephritites. Larva inhabits galls or 

 excrescences on the bark and leaves of plants. Pupa as 



Q2 



