15 



with the fumes of carbon bisulphid. Since the beetles had already 

 bored their way through the wrappers, they must have infested the 

 tobacco in the factory at Manila. 



Rev. T. Blackburn records this species from Oahu and Kauai and 

 refers to it as " plentiful in Honolulu; frequently found in cigars. " a 



This insect occurs in all stages of development at the same time and 

 generation follows generation successively throughout the year here 

 in Hawaii. 



Fig. 6. — The cigarette beetle, Lasioderma serricome. a. larva; b, pupa; c and (/, adult; e, antenna — 

 greatly enlarged — natural size shown by hair line (from Chittenden). 



REMEDIES. 



In speaking of ridding an establishment of this pest, Doctor Howard 

 writes as follows: 



The writer knows of one little shop into which it (the beetle) was accidentally intro- 

 duced in some plug tobacco. It increased, entered the show cases, and ruined a 

 large number of high-priced cigars and cigarettes. The shopkeeper was in despair, 

 but finally, at the advice of the writer, submitted his entire stock to fumigation with 

 bisulphid of carbon, and thus completely rid his establishment of the beetle. 



With a small establishment like the one just mentioned, it is a comparatively sim- 

 ple matter to destroy the insect by means of the fumes of bisulphid of carbon. The 

 place was clean and well-swept and dusted, and all that was necessary was to have 

 a tight case (a show case was used), and the entire stock of tobaccos, cigarettes, and 

 cigars was placed in the case in installments, and a saucerful of bisulphid of carbon 

 was evaporated overnight. For some time after this experience the shopkeeper in 

 question used the same case as a quarantine box, and put all of the tobacco which he 

 bought through the fumigating process before he placed it on his shelves. 



Following this plan, a local dealer cleared his storeroom of the 

 cigarette beetle, and a grocer firm, using a paper-lined packing case 

 with a tight-fitting cover, instead of the show case, successfully treated 

 various stored products for this and other insect pests. Care must 

 be taken that the carbon bisulphid is placed in shallow dishes in order 

 that as great an evaporating surface is obtained as possible; that the 

 dish is placed on top of the articles to be fumigated, since the fumes 

 are heavier than air; that the box or room in which the fumigating is 



a Memoirs on the Coleoptera of the Hawaiian Islands. Trans. Royal Dublin Soc. 

 (2) III, p. 243, 1885. 



