254 



was found that they at once began laying again — prodncing 

 from 24 to 32 eggs dnring the next night. 



ABUNDANCE OF FLEAS. 



To get sonic idea of the nnnihcr of tlcas in the soil of an 

 infested henhouse, half a pint of the dry dirt from the floor 

 was placed in a glass jar and the fleas were removed as fast 

 as they emerged. The experiment was conclnded at the end 

 of about three weeks, with a total of 1,027. 



RESISTANCE OF THE NEWLY-EMERGED FLEAS. 



In order to determine how long the fleas can live in the 

 dry soil, without a host, they were ])laced in open glass jars, 

 after emerging, and left until they died. It was found that 

 most of them lived for over a week, and many of them much 

 longer, some continuing for 30 days. 



In no case were eggs produced by the fleas before feeding 

 upon blood. It is also interesting to note that though the 

 females are very resistant before finding a host, they quickly 

 succumb if removed after they have once fed upon blood, 

 dying within a day or two. The males, on the other hand, 

 are not disturbed by removal from the host, and actually live 

 longer than they do while actively mating. 



A New Cockroach to the Hawaiian Islands 



(Holocompsa fulva Burmeister.) 



BY J. F. ILLING WORTH. 

 [Presented at November Meeting.] 



At a previous meeting I reported finding a tiny roach in 

 the sphagnum moss which was used for packing the large 

 roaches (Rhyparohla mnderae), which Bro. Matthias ISTewell 

 sent from Hilo, Hawaii, on November 14, 1914. 



This adult specimen resembled so closely the new-born 

 young of the large species that I did not discover the differ- 



Proc. Haw. Ent. Soc, III, No. 3, September, 1916. 



