114 ENTOMOLOGICAL SOCIETY 



kaya one goes on all fours, and the little Japanese maid stands 

 close by with a fan which she waves vigorously while the hasty 

 scramble is made under the edge of the net. 



The Japanese house is a mere framework of heavy timbers. 

 The outer wooden walls (amados) are removable in sections, 

 and within these are the paper walls (shoji) which may also be 

 removed, or slide together, leaving the rooms absolutely open to 

 the air and light. The result is that mosquitoes have free 

 access to Japanese houses nntil the retiring hour, when 

 the shoji are slid back, and the amados are replaced, closing the 

 house up very tightly unless vigorous protest is made in the 

 interests of air and to prevent partial asphyxiation. Very for 

 tunately while the rooms are lighted the mosquito is not often 

 troublesome in Japan (and I refer now more particularly to 

 Culex pipiens}. This, however, is by no means an absolute condi 

 tion, and one will be bitten often enough even if 99 per cent, of 

 the mosquitoes are inactive in the presence of light. This is in 

 marked contrast to the behavior of the mosquitoes of Singapore 

 and Java, which bite quite as readily at night in partially lighted 

 rooms as in the dark. 



The general notes which follow are arranged by localities. 



Okayama, Japan, May 4^/2. The inn at this place where 

 two nights were spent faced a swamp in which grew the sedge 

 or reed, used as a covering for Japanese house mats. The hotel 

 was infested with a very large mosquito, evidently an Anophe 

 les, with distinctly spotted wings, and so vicious was this insect 

 that it was impossible to avoid being bitten many times during 

 our late dinner and before refuge was taken beneath the u kaya." 

 It was also exceptionally active, and the greatest difficulty was 

 experienced in capturing a few specimens. This mosquito, deter 

 mined by Mr. Coquillett as Anopheles sinensis Wied., was the 

 only Anopheles found in Japan. It was originally described 

 from China, and has not heretofore been reported outside of that 

 country and is new to the National collection. Culex pipiens 

 also occurred here in moderate numbers. 



Takamatsu, Japan, June 3. At no place in Japan were 

 mosquitoes seen in greater numbers than here. They occurred 

 simply by myriads, the walls of the rooms being black 

 ened by the numbers resting there. They bred in the num 

 erous canals intersecting the city. They were the species Culex 

 pipiens Linne, and were rather sluggish in light, and collecting 

 bottles could be put over them without their making any attempt 

 at flight. 



Kotohira, Japan, June 4. In this small interior town but 

 few mosquitoes were found, apparently of the same species that 

 occurred at Takamatsu. These two localities are both on the 

 island of Shikoku, an island out of the line of ordinary travel. 



