190 E. JACOBSON, TIIOMISUS DECIPIENS FORBES. 



the striking resemblance this spider bears towards bird's 

 excrements, but he says nothing about the smell, wich 

 evidently escaped his notice. 



Buitenzorg, Dec. 1920. K. W. Dammerman. 



Note. Mr. Dammerman states positively, that the flies 

 were not attracted by the spider he observed. As he kept, 

 however, his specimen in a small closed jar, this might 

 have had some influence on the negative results of his 

 observations. Perhaps the odour filled the whole jar and, 

 therefore, could not be traced by the flies to the spider. 



The specimen I observed at Sukamananti was put quite 

 uncovered on a table in the veranda of the resthouse, where 

 I stopped. The flies were decidedly attracted, as they came 

 swarming round the spider. They were all common house- 

 flies, and no blowflies or other species were observed by 

 me to fall victims to the stratagem. 



E. Jacobson. 



EXPLANATION OF PLATE 12. 



Fig. 1. Ornithoscatoidcs decipiens (Forbes) from Sumatra on 

 its web ; nat. Size. 

 » 2. Céphalothorax, 5 X- 



» 3. » and diagram of eyes, 5 X- 



» 4. Ornithoscatoides decipiens (FORBES) var. from Java 2 X. 



