screen is placed just above the bait. 

 Greasy specimens should be cleaned by 

 washing in alcohol to which a grease sol- 

 vent such as carbon tetrachloride (Car- 

 bona) has been added at the rate of one 

 part grease solvent to ten parts of 80% 

 alcohol. 



Trap Lights. Lights attract many sorts 

 of insects besides moths, and street and 

 porch lights are fruitful hunting grounds. 

 A lamp by an open window makes the 

 room a splendid tiap. A white sheet il- 

 luminated by a gasoline lantern hung in 

 front of it or a tent with a strong light in- 

 side attracts many night flying species. 

 One may drive to the woods or favorite 

 collecting ground, hang up a sheet, and 

 train the headlights of the auto on it and 

 reap the harvest of insects that will soon 

 begin to come. If the lower edge of the 

 sheet is turned up to form a trough, many 

 of the insects that fall when they strike the 

 sheet or when they are disturbed can be 

 easily collected. 



A light suspended over a tub containing 

 water covered with a thin film of kerosene 

 can be used to collect and kill most insects 

 except moths and fragile winged or hairy 

 insects. Specimens collected in this man- 

 ner will have to be cleaned as above. 



Trap light collecting works best on 

 warm, cloudv nights where there is a vari- 

 ety of vegetation. The point at which a 

 woodland passes into a swamp or where 

 there is an abundance of second growth 

 is the best location. Trap light collecting 

 is the only successful method of capturing 

 many groups of insects. If crumpled pa- 

 per is placed in the bottom of the trap 

 insects crawl beneath it and become quies- 

 cent and may be collected the next day. 

 This prevents lepidoptera from flying 

 about and becoming battered. 



Many insects attracted to light can be 

 grasped with a pair of curved forceps and 

 dropped into the killing jar instead of 

 placing the jar over the specimen waiting 

 for it to drop into it. One becomes quite 

 adept with the forceps and with a little 

 practice and will soon use them for all ex- 

 cept the large forms. 



Sugaring. Sugaring for moths is often 

 successful in attracting many specimens, 

 especially the under-wings (Catocala). 

 With a whitewash brush, paint a ferment- 

 ed fruit and sugar mixture on tree trunks, 



stumps, and fence rails. This can be done 

 from early spring to late fall. 



Two cone odious which have produced 

 good results are: 



1. A mixture of fermented peaches and cane 

 sugar. (Fresh peaches are preferred to canned.) 

 The peaches should he put thru a sieve after 

 fermenting, then mixed with sugar as desired. 



2. A mixture of fermented hananas, dried apri- 

 cots and white or brown sugar. This fermented 

 mass should also be sieved. 



Both of these mixtures have been found 

 to give better results than the traditional 

 stale beer, molasses and brown sugar solu- 

 tion, which is made as follows: 



To four pounds of sugar or molasses add 

 a bottle of beer, and flavor the whole with 

 a little rum. 



A circular course which can be traversed 

 in 20 minutes or half an hour can be laid 

 out. By the time the last tree is daubed 

 with the bait early arrivals may likely be 

 found at the first trees and the evening 

 fun begins. Visit each bait with a flash- 

 light or lantern and place the killing bot- 

 tle just under the specimens found feed- 

 ing on the bait when the light is flashed 

 on, them. They will drop of their own 

 accord into the bottle and you will find it 

 easier to keep the killing jar from becom- 

 ing gummed up with the bait. 



A warm sultry evening with a storm 

 threatening is the best time to sugar. The 

 same course may be touched up with fresh 

 bait and the second or third night will fur- 

 nish even better collecting. A very inter- 

 esting account of sugaring is related in 

 Holland's The Moth Book. 



Rearing Insects 



The rearing of the various stages of in- 

 sects enables the collector and student to 

 obtain perfect specimens and complete life 

 histories for accurate study and use in per- 

 manent collections. It opens untold pos- 

 sibilities for observations on food habits 

 and the general ecology of various species. 

 Finally, there is unlimited opportunity for 

 experiments in breeding, hybridization, 

 effect of environment, effect of nutrition, 

 diseases of insects, embryological studies 

 and countless others. 



Accommodations for Lixnng Insects. 

 Cages and their location are of primary 

 importance in rearing insects. For general 

 purposes a cage such as that illustrated in 



