29. Nepldae . . . 



30. Belostomatldae 



31. Gelastocorldae 



32. 

 33. 



Ochterldae, 

 Corlxldae . 



HOW TO KNOW THE INSEQS 



(4) The Water-Scorpions. 

 (3) The Giant Water-bugs, 



On submerged plaijts. 

 Broad, flat, brown; car- 



**♦( Insects of New 



7. Aphldldae . . 



8. Phylloxeridae 



9. Aleyrodldae . 

 10. Coccldae. . . 



nlvorous. 



(1) The Toad-shaped bugs. Body broad and short 

 eyes. 



(2) The Ochterlds. In mud along shore. 



(?) The Water-boatmen. Mostly plant feeders; prom- 

 inent on banks of streams. 



XVII I Order HOMOPTERA 



*( Catalogue of Hemlptera, Van Duzee) 



(8) The Cicadas or "Locusts." Large; broad heads. 



(4) The Frog-hoppers. Nymphs burled In froth on 

 plants. 



(69) The Tree-hoppers. Queerly enlarged pro thorax. 



(112) The Leaf-hoppers. Suck Juices of plants. 



(21) The Lantern-fly Family. Live on plants. 



(6) The Jumping Plant-lice. Look like cicadas, but 

 very small. 



York)*** 



. . . The Plant Lice. Soft bodied, frequently wingless. 



. . . Aphlds covered with waxy powder. 



. . . The White files. Tiny white pests of house plants. 



. . . The Scale Insects, bark lice, mealy bugs, etc. 



XIX Order NEUROPTERA (The Nerve-Winged Insects.) 



1. Slalldae. . 



2. Raphldlldae 



3. Ifemtlspldae 



4. Slsyrldae . 



5. Sympheroblldae. 



6. Hcmeroblldae. . 



7. Berothldae. . . 



8. Polystoechotldae 



9. ChrysoplQae . . 



10. Myrmeleonldae . 



11. Ascalaphldae. . 



12. Conlopterygldae 



1. Rhyacophllldae 



2. Hydroptllldae. 



*( Insects of New York) 



(3) The Aider-files; Corydalus ,etc. 



The Snake files. Prothorax greatly elongate. 

 Western. 



(2) The Mantls-llke Neuroptera. Front legs fitted 

 for seizing prey. 



The Spongllla files. Broad, smoky brown wings, 

 around v/ater. 



(1) Small. 



(6) Dark to yellow with hyaline or pale yellow 

 wings. 



Small family. 



Large Lacewlngs. 



(18) The Green Lacewlngs. Larvae feed on aphlds. 



(4) The Ant-lions. Dellcate-wlnged, resembling 

 damsel files. 



(1) The Ascalaphlds. Resemble dragon files but 

 longer, clubbed antennae . 



The Mealy-winged Neuroptera; small, less than 3 mm 

 long. 



XX Order TRICHOPTERA 



*( Insects of New York) 



Larvae In rapid-flowing streams. 



The Mlcro-caddlce Files. Very small; resembling 

 tlneld moths. 



124 



