21. 



Famili/ f. — 1. Body short and thick. 2. Prothorax large andl 116 



square. 8. Antenuae long and setaceous. 4. Wings v.gi^LH)^E_ 

 large, reticulated, and the posterior ones with the anal space I (Corydalis 



plicated. 5. Tarsi five jointed. 



J 



Fam.) 



117 



Famili/ g — 1. Body long,' slender and cylindrical. 2. Wings, jjr^irpqr 

 large with numerous veins, the posterior ones with no anal j" idae. 

 space. 3. Ocelli usually absent. 4. Tarsi five iointed. ! (Lace-wing- 

 ^ -^ J ed Fly Fam.) 



Family Id. — 1. Body cylindrical or conical. 2. Head exserted.1 

 3. Antennae shorter than wings. 4. Mouth rostrated. 

 5. Lateral palpi biarticulated. 6. Prothorax small. 7. v 

 Wings either almost absent or narrow, equal, longer than 

 body, and narrowed at base. 8. Posterior wings with no 

 anal space 9. Tarsi five-jointed. 



Family i. — 1. Body compres.-ed, cylindrical. 2. Head free. 3.1 

 Antennae long, thread-like. 4. Mouth imperfectly de- j 

 veloped. 5. Labial palpi triarticulate. 6. Prothorax 

 small. 7. Wings longer than body, with few transverse ;. 

 veins: posterior wings have anal space large and plicated I 

 (rareiy absent). 8. Tarsi five jointed. (Resemble the I 

 smaller moths.) J 



Family y — 1. Body long and flattened, with metallic scales in"! 

 form somewhat like those of Butterflies. 2. Antennae 

 very long, setiforra, and many jointed. 3. Mouth parts l 

 free with long palpi. 4. Maxillary palpi seven jointed, 

 labial palpi four. 5. Mandibles stout, sunken in the head, | 

 and armed with teeth. 6. Prothorax very large. 7. ' 

 Kinirs of body of nearly same size. 8. Anal stylets long 

 and large, which, with tlie smaller ones inserted on the sub- 

 terminal rings of the abdomen, aid greatly in locomotion. 

 (These agile creatures are found in turning over sticks and 

 stones in damp situations, and, though tliey run with great 

 rapidity, they do not leap like the Poduridae, (Fam. ^.) 



Family Is.- — 1. Anal bristles, which are free in j, are here united" 

 and bent under the body, forming a spring, by which they 

 leap high into the air. 2. Body cylindrical and covered 

 with hair or scales. 3. Antennae four to six jointed and 

 short and thick. 4. Eyes simple; four to eight on each i 

 side. 5. Mouth parts not well developed. 6. Legs I 

 stout. 7. Tarsi one jointed. (Found in gardens, or hot! 

 beds, on manure heaps in winter, and on the snow.) j 



118 



PANORP- 

 IDAE. 



(Scorpion- 

 fly Fam.) 



119 



PHRYGAN- 

 EIDAE. 



(Case-worm 

 Fam.) 



120 



Llepismat- 



^ IDAE. 



(Bristle- 

 tails.^ 



121 



PODl'R- 

 IDAE. 



(Spring 

 tails.) 



