HOW TO KNOW THE INSEQS 

 V Order ODONATA (The Dragon Flies and Damsel Flies) 



*(Han(it)Ook of the Dragon-files of North America, Needham and Heywood.) 



1. Aeschnldae (19) The Aeschnlds. Some of our largest dragon 



files. 



2. Libellulldae (25) The Skimmers, Many of our most common dragon 



files belong here. 



3. Agrlonidae (3) The True Agrlonlds. Broad v;lnged, metallic 



colors. 



4. Coenagrlonldae. • . • (27) The Stalked-wlnged Damsel Files. Delicate 



winged; about water. 



Yl Order EMBI IDINA 



1. Emblldae Tropical and sub-tropical; resemble psoclds. 



VII Order ORTHOPTERA 



*(Orthoptera of II. E. A., Blatchley) 



1. Blattldae (8) The Cockroaches. Much flattened, non-leaping, 



omnivorous . 



2. Mantldae (4) The Praying Mantes. Uncomm.on In Iowa but 



occasionally found. 



3. Phasmldae (4) The Walking Sticks. Long and slim, wingless 



In loY/a; herbivorous. 



4. Locustldae (78) The Short-homed grasshoppers. Antennae 



shorter than body; herbivorous. 



5. Tettlgonlldae .... (39) The Long-horned Grasshoppers. Frequently 



green; long thread-like antennae; herbivorous. 



6. Grylloblattldae . . . Rare mountain forms. 



7. Gryllldae (22) The Crickets. Omnivorous. 



VI I I Order ZORAPTERA 



1. Zorotypldae Under bark of logs and stum.ps. 



IX Order ISOPTERA (Termites) 



1. Termltldae (2) White Ants. Live In colonies In wood. 



X Order DERMAPTERA (Earwigs) 



*(Orthoptera of N. E. A., Blatchley) 

 1. Forflculldae (1) Short wing covers, pair of forceps at rear. 



XI Order COLEOPTERA (The Beetles) 



*(Catalogue of the Coleoptera, Leng) 



1. Clclndelldatj (34) The Tiger-Beetles. Very active, usually 



brilliantly colored; eat Insects. 



2. Carabldae (307) Ground-Beetles. Eat Insects. 



3. Amphlzoldae Rare, unknown to Iowa. 



4. Omophronldae (4) The Round Sand-beetles. In holes on banks of 



streams and ponds. 



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