CHAPTER IX 



Common Flies- and How to Tell Them Apart ^ 

 C. 2\ Greene 



Only a few of the very common flies have been included in this chap- 

 ter; the flies that are likely to appear near any house or in any camp. 

 All of them may be attracted by the odors of fresh and cooking foods. 

 In the following pages are presented two tables, one to separate the dif- 

 ferent species of the adult flies, and the other to separate the different 

 larvae or maggots of the flies. All the terms for the different parts of 

 the flies and maggots have been made as plain as possible so that the 



Mouth P/J/ZTS. 



Fig. 10. — Mouth parts of flies: a, Suctorial type; h, biting type. (Greene.) 



tables can be used by a non-entomologist. In the first table for the adult 

 flies is given the style of the mouth-parts (see fig. 10), that is, whether 

 they are adapted for biting or are simply suctorial, then the common 

 name is given, and then the scientific name. In the second table the larvae 

 or maggots can be separated into diff^erent species. Under the name of 

 each species, the larva or maggot is described in further detail and here 

 mention is made as to where the species will breed. 



^ This lecture was presented September 9, and issued September 11, 1918. It has 

 been somewhat modified. 



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