22 PROCEEDINGS ENTOMOLOGICAL SOCIETY. 



Aedes bimaculatus Coquillett. 



Very rare and apparently confined to certain particular lo- 

 calities. Comes about dwellings and in open porches. A 

 fierce biter. Only a few specimens taken; these in July and 

 September. 



Megarhinus septentrionalis Dyar & Knab. 



The only Megarhinus taken here. Scarce as a rule, but 

 locally abundant about favorite breeding-holes. Breeds in 

 hollow trees and logs with triseriatus (Say) and signifer (Coq.) 

 Is cannibalistic, preying on other larvae of its own and different 

 species. Does not bite, so far as I know. Enters dwellings 

 at night only where lights are lit. Does not enter at all by 

 day, except sometimes when it is raining. Females seldom 

 taken in the field and I do not understand just why. I find 

 the males of a certain locality all go to some certain tree or bush 

 and are always to be found there, yet not a single female will 

 be seen. I have looked at all times of the day and before 

 day and after night. I took all my males (a hundred or so) 

 on some poison ivy that grew on a hackberry tree 100 yards 

 from the breeding log. I could always find them here after 

 they just made their appearance and nowhere else. The most 

 of them were taken from the same bunch of leaves; but not 

 a female did I ever see there. The females came to my lamp 

 sometimes at night and I think perhaps they are only out at 

 night. I found the same peculiar habits with this mosquito in 

 other parts of the country where I have been. Taken in July, 

 August, September, and October ; a few in June. 



Anopheles walked Theobald.* 



This is perhaps only a variety of ,1, quadrimaculatus. It is 

 decidedly darker over entire body and the palpi are plainly 

 ringed with white on the apices of the segments. The dif- 

 ference in habits is, however, quite as noticeable as the ap- 

 pearance of the two. I have never taken walkeri indoors, and 

 have taken it about dwellings only seldom, and these dwell- 

 ings were in woods. I have taken it in woods and open fields. 

 I have never seen a male and have not taken it with quadri- 

 macnlalus. It is very scarce at all times. I have taken them 

 in December, June, and July. They were always eager biters. 



Anopheles punctipennis Say. 



Next in abundance to .4. quadrimaculatus in the bottoms; 

 more abundant than the latter in Little Rock and the adjoin- 

 ing hill country. Breeds in springs, pools, and larger bodies 



* Specimens not sent to Washington. The species is distinguished by 

 the white rings on the palpi, which Mr. Thibault mentions. His identi- 

 fication is therefore obviously correct. H. G. DYAK. 



