166 INJURIOUS INSFXTS OF 1903. 



or kerosene should be injeeted into the nest when found. In the 

 use of bisulphide of carbon care must be observed not to bring 

 it near a light of any kind. 



A prominent confectioner who was very much annoyed by 

 the presence of ants in his factory used kerosene oil at our sug- 

 gestion, putting it in cans ordinarily used in oiling machinery, 

 and thus was able to squirt the kerosene into cracks and crevices 

 and along basel^oards, etc., wherever the pest, appeared. This 

 had to be repeated, however, at intervals. When last heard from 

 he had l)een cnjoving inununity from tlie pest for two or three 

 months. 



TIIK CLOTHES MOTH AND THE CARPET BEETLE. 



Housekeepers found remedies for both of these pests dis- 

 cussed in last year's report, page 56, and nothing further is called 

 for here. AVe picture below, Fig. 103. the egg of a clothes moth 

 in woolen cloth, very much enlarged. 



i'lR. 10:j."Egg of Clothes Aloth. Tineola hisetticUa. much enlarged. Original. 



This egg is visiljle to the naked eye, and it can be dislodged 

 by shaking or brushing the cloth. Kept under observation in the 

 laboratory, they hatched in six and seven days, one female laying 

 several eggs. An egg. measured under the microscope, was 

 found to be 2-100 inch by i-ioo inch. The young worm, shown 

 in Fig. 104, was 1-20 of an inch long when about 24 hours old. 

 The species figured, apparently quite common in Minnesota, is 

 Tineola hiselUeUa, Hummel, and not Tinea pellionella, Linn. 



