CLASSIFICATION OF INSECTS. 195 



tlie apical seta of the antenna exarticulate ; 

 ligula short and broad ; alula; of the wings 

 wanting ; wings narrow ; form elongate, often 

 very slender : glabrous or slightly hairy ; colour 

 black, black with yellow spots, brown or yel- 

 lowish. Ortalis, Sepsis, Lonchcea, Lauxania, 

 Ulidia, Piophila, Psila, Calobata, Micropeza, 

 Tetanocera, Loxocera, Heteromyza, Platycephala, 

 Sciomi/za, Lucina, Chryliza, Lissa, Platystoma, 

 Sepedon, Dorycera, 



693. Variegated flies ( Tephritiles). Larva in- 

 habits galls or excrescences on the bark and leaves 

 of plants. Pupa as in the Musettes. Imago with 

 the apical seta of the antennas exarticulate ; ligula 

 large, fleshy, bilobed, and pilose ; alula; of the 

 wings wanting; wings rather wider than in the 

 preceding order, beautifully variegated, striped and 

 spotted with different shades of black and brown ; 

 body glabrous, or with a slight pilosity, of moderate 

 length and stoutness, and, in the females, furnished 

 with a large exserted and conspicuous ovipositor. 

 Tephritis. 



694. Phytomyzites {Phytomyzites). Larva 

 inhabits the interior of plants and fruits, and 

 sometimes putrid substances. Pupa as in the 

 Musettes. Imago with the apical seta of the 

 antennae exarticulate; ligula large, fleshy, 

 clavate ; alulae of the wings wanting ; wings as 

 wide as in the preceding order ; the body very 

 delicate, often very slender, glabrous; colour black, 



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