HOW TO KNOW THE INSEQS 



23 . Pan t ophthalral dae . 



24. Rhaglonldae . . . 



25. Scenoplnldae 



26. Mydaldae. . 



27. Asllldae. . 



28. Therevldae. 



29. Aplocerldae 



30. Bombyllldae 



31. Nemestrlnldae 



32. Cyrtldae. . 



33. Empidae . . 



34. Dollchopldae 



35. Lonchopteridae 



36. Phorldae. . 



37. Platypesldae 



38. Plpunculldae 



39. Syrphldae . 



40. Conopldae . 



41. Pyrgotldae, 



42. Otlt'.dae. . 



43. Trupaneldae . 



44. Pallopterldae 



45. Lone hael dae . 



46. Ropalomerldae 



47. Tanypezldae , 



48. Calobatldae 



49. Micropezldae, 



50. Nerlldae. . . 



51. Plophllldae . 



52. Sepsldae. . . 



53. Lauxanlldae . 



54. Perlscelldae. 



55. Drosophllldae 



Tropical flies. 



(7) The Snipe Files; small to medium sized, long- 

 legged flies found abundantly in vroods and damp 

 places. 



The Window Flies; moderate or small size, dark 

 colored. 



The L!ydas Flies; very large elongate flies; larvae 

 live on decayed wood. 



(41) The Assassin or Robber Flies; large, mostly 

 elongate, predacious flies. 



The Stilleto Flies; moderate sized predacious flies, 

 most abundant in dry areas. 



Large elongate flies; mostly Y/estern. 



(21) The Bee Flies; large family of hairy flies. 



Koderate size; quick fliers. 



Thorax and abdomen large, head small. 



The Dance Flies. In moist places, woods, etc. 



The Long-headed or Long-legged Flies. Small, 

 usually metallic green or blue. 



The Pointed-wing Flies. Small, slender, brownish 

 or yellowish flies found in moist places. 



The Hump-backed Flies. Small or very small, often 

 wingless. 



The Flat-footed Flies. The larvae of at least part 

 of the family live in fungi . 



The Big-headed Flies; readily told by the large 

 head; larvae parasitic on other insects. 



(71) The Flov/er Flies; a large family of beneficial 

 flies. 



The Thick-headed Flies; moderate sized, elongate 

 flies, largely parasitic on Hymenoptera. 



Parasitic on beetles. 



(20) The Pictured-wlng Flies. Wings usually marked 

 with brown, black or yellowish; common in moist 

 places. 



The Fruit Flies; for most part small; wings usually 

 pictured. 



In moist shady places; usually with pictured wings. 



Small, dark, shining flies. 



Tropical. 



iZedlum sized files v/lth long, slender legs; in 

 moist woods. 



The Stilt-legged Files; legs very long; near moist 

 places. 



Slender files with long legs, in marshes and moist 

 places. 



Slender flies with long legs; near water. 



Small black or bluish metallic flies. The "cheese- 

 skipper" belongs here. 



Small, shining, black or reddish flies; scavengers. 



Most commonly In moist places. 



Small, wings sometimes pictured. 



The Small Fruit Flies. Small; wings often pictured. 

 Around ripe fruit and decaying vegetation. 

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