The Natural History of Chautauqua 



5. The Dictynid Spiders; irregular webs with a peculiar curly thread ; 



common on asters, golden-rod, etc. 



6. The Cob-Web Spiders; small; abundant in corners, ceilings of 



barns, sheds, etc. 



7. The Orb Weavers; the beautiful and symmetrical orb webs are 



made by these plentiful and interesting spiders. 



8. The Uloborid Spiders; regular webs with curly-thread ; fairly com- 



mon. 



9. The Crab Spiders; crab-like in appearance and gait; webless; lie in 



wait for prey ; some brightly colored. 



10. The Running Spiders; large, dark-colored, hairy spiders; webless; 



swift runners, pursuing prey. 



11. The Jumping Spiders; small; quick, jumping movements; bright 



markings; common on plants, logs, etc. 



III. THE MITES 



Many minute species, infesting plants and animals; many acting as 

 scavengers. The " Red Spider " of house plants is a mite ; several kinds 

 produce plant galls. 



IV. THE MYRIOPODS 



Many-legged, worm-like creatures; centipedes and millepedes; the 

 Chautauqua species all harmless, and living under damp stones, logs, 

 and bark; predaceous, feeding on small insects. 



V. THE TRUE INSECTS 



The true insects have three pairs of legs in the adult stage. 



i. The Thysanurans 



These are small, inconspicuous insects, without metamorphoses ; living 

 under stones, decayed wood and leaves, etc., or in the house. The 

 common " Silver Fish," destructive to books and wall-paper, is perhaps 

 the most common example. 



2. The May Flies 



Delicate, graceful insects; the fore wings much larger than the hind 

 wings; the nymphs are aquatic; the adults aerial and living but a few 

 hours or days. There are many species in Chautauqua Lake, brooks, 

 and ponds, and the adults are abundant in early summer. 



3. The Dragon-Flies 



Graceful, strong-winged insects; the hind wings as large or larger 

 than the fore wings ; nymphs aquatic ; adults aerial ; mouth-parts biting. 



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