EGG-LAYING REACTIONS IN POMACE FLY aol 
TABLE 1 
Selective experiments 
a =] - oJ 5 a a 
KIND OF STIMULUS STIMULATING SUBSTANCE 8 4 3 8 2 ¢ g S 2 g : g 
geo | gee! a | ao |ad) 8 
Ba Vee eee Iemeio wine lis 
< < i] B is a 
ie Mioisture= ae water 0.005) 0.3 3) (neers x0) Ga 9 Yn) 
2) Taste... ...sOxalieracid 0.003) 0.7 || AO) | ae) 
citric acid 0.008] 0.2 See lOON ee) al 
Se OGOR:,.5 ate oe acetic acid OF207 S220 Nae 20 0b a | ok 
ethyl acetate + alcohol ORO iso 6 0) || 2 1 
amy]! alcohol 0.03 | 1.5 3 On mele ent 
amyl valerianate 0.07 | 0.8 6 S00 eel 
4. Taste + odor...| acetic acid ORSS5 eles Oe |S gs |) Z| al 
ethyl alcohol ey | Bod |All | 2 | 
butyl alcohol Ue |) Sos} 1 HO |) KO | a 
formaldehyde ORLA NL OLGZE 505) 100) 5275 eee 
acetaldehyde 0.05 | 0.10 | 14] 100] 46] 1 
methyl! alcohol 0.04.) 0.83 | 8 | 113) 12) 2 
ethyl acetate 0.02 | 1.1 S| AKO | a al 
ethyl oxalate O02 OR Lo) |) Se LOOT 1 1 
ammonia OLOZ FN ROLZ5) | 3 00) | Ga ee 
propionic acid OL0L Ont Sah OO ay al 
formic acid DEO iGn KORO 2a OO eee teed 
ethyl sulfate ORO FORO Ss isa eel OOS 2a meet 
propyl acetate O2005| RORLON Zale OON os al 
butyric acid OCB) O83) al |} ie) |) ak Pa 
amyl! alcohol 0.002) 0.03 | 1| 200) 11) 2 
The following stimulating substances called forth no responses: 
1. Dry glass, filter-paper, cotton. 
2. Sucrose, glucose, glycerin; hydrochloric acid, nitric acid, osmie acid, 
succinic acid, tartaric acid. 
3. Ethyl alcohol, ethyl acetate, butyl alcohol. 
4. Acetone, amyl nitrite, amyl valerianate, ethyl ether, ethylene alcohol, 
isoamyl acetate, turpentine, valerianic acid. 
