HOW TO KNOW THE INSECTS 



43. Lay chips, stones or boards on top of STLl'IPS where trees 

 ha.ve been freshly cut. The sap attracts many Interesting species 

 and the chips keep them until the entom.ologist com.es. 



44. V^Tierever trees are shedding their SAP look for bees, flies, 

 and other insects. 



45. When the WILLOWS bloomi, their catkins are fairly alive v/ith 

 bees and flies. 



46. Split the STEM.S of dry or green ^'/eeds and other plants for 

 stem borers, as ^vell as other insects hiding there. 



47. Different species of plants are attacked by different Insects. 

 Kjiow your plants and visit or sweep as many different species as 

 possible. A record of the plant on which an Insect was feeding 

 is valuable. 



48. Examine the DEBRIS cast up by RISITG STREAIvIg during a flood 

 or shortly thereafter. You can't beat it for quantity or number 

 of species If you catch It right. 



49. Look for insects floating in along the WATER LIIvE on the 

 windward side of a water course after a warm night. 



50. l..:any good ones may be found on the outside of brilliantly 

 lighted snow WINDOWS , Look inside by day. 



51. L'OSSES :\ND LICHENS harbor many insects. They can be gotten 

 out by the sieve, heat, by tearing up the plants or by using the 

 separator, 



5.?. After a rain look for insects v/here LEA'/ES unite with the 

 twigs in clusters. They seek shelter in the whorl about the node. 



53. To catch small insects in the WATER use a test tube or small 

 bottle, hold it as nearly submerged as possible without letting 

 the water enter; on nearlng the insect lower the edge next to It 

 and it will be waslied into your bottle. 



54. A v.^arm and dry sandy BAITv is an ideal place to find Tiger 

 beetles. 



55. V/hen driving in an open CAR insects collide with the various 

 parts of the interior and drop In the seats. They are often 

 quiet for a tim.e and may be bottled easily. 



56. V/hen dining out of doors leave an open SAl'DWICH on a stump or 

 loj':; and return an hour or two later and harvest your crop. 



57. LLlvlBER PILES afford hiding places for many Insects. 



5G. Watch for insects that are visiting mud puddles or the edges 

 of bodies of water to drink. 



59. Spread a large cloth under trees or shrubs and beat the 

 trunks with a padded h.eavy club. Many specim.ens \''ill drop on the 

 cloth and may be easily taken. 



60. Dig under trees or plants for pupae of moths and other in- 

 sects. Perfect specimens will em.erge from these if th.ey are 

 carefully cared for. 



61. Separators (See Fig. 11) for extracting small Insects from moss, 

 soil debris, etc. get some valuable specim.ens and save much time. 



Q'2. A white sheet suspended in a strong light at night attracts 

 m.any species. If the bottom of the sheet is i.irred up it will 

 serve as a troi;.gh to catch those that fall. 



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