176 ZOOLOGY. 



The Common Flies (Musca) 



are coloured dark or shining green. The headless 

 white maggots live in dung (House Fly = Musca 

 domestica), in fresh or decaying meat (Blue-bottle = 

 M. vomitoria), exceptionally {M. vomitoria) in wounds 

 that are not kept clean, or in the vagina of several 

 domestic animals. Remedy: Compare above (" Flesh 

 Fly"). 



The Flower Flies (Antkomyia). 



These are found on flowers, and resemble many 

 common flies in appearance and colour. The headless 

 white maggots live in dung, also in decaying or sound 

 parts of plants ; a few species may sometimes develop 

 in the one kind of material, sometimes in the other. 

 AnthoTnyia meteorica swarms round the heads of 

 domestic animals, and may even cause inflammation 

 of the eyes and ears. The Wheat Bulb Fly (Anthomyia 

 coaretata, about a quarter of an inch long, yellowish 

 grey, with black hairs) lives as a larva during winter 

 and spring in the hearts of rye and wheat plants, 

 the leaves of which become yellow in consequence. 

 During April and the beginning of May the larvae 

 quit these plants and become pupae in the ground. 

 The second generation can, in like manner, live in 

 various kinds of summer grain. The Lupine Fly (.4. 

 funesta) — nearly one-fifth of an inch long, brownish 

 grey (male) or whitish grey (female), with black legs 

 — digs, when a larva, tunnels in the roots, stems, and 

 seed-leaves of young lupine plants, causing the root 

 and stem to turn black, and the seed-leaves to 

 wither. Preventive Measure : Early sowing of the 

 lupines. The Mangold and Beet Fly (.4. hetce), a quarter 

 of an inch long, yellowish grey, lays its eggs, five to 

 eight in number, in the young leaves of mangold and 

 beet. The maggots devour the green substance of 

 the leaf between the two layers of epidermis, so that 



