OF WASHINGTON. 491 



Dr. Gill spoke of the fauna of Hawaii and said that the bird 

 fauna indicated a relation to that of South America. The only 

 original mammal (a bat) is related to North American forms. 

 The shells, of which the family Actinellidas form the bulk, are 

 characteristic but are supposed to be more nearly related to the 

 Pacific island forms west of the Hawaiian archipelago. The rep 

 tiles are all lizards and are all most nearly related to Asiatic 

 forms. Mr. Ash mead considered the Hymenoptera of Hawaii 

 to be related to the Indian fauna, and Dr. Dyar stated that the 

 Lepidoptera, aside from the introduced species, appear to be most 

 nearly related to Asiatic forms. Mr. Currie said that aside from 

 one species from the United States and one from the United States 

 and West Indies the Odonata were most nearly related to Asiatic 

 forms. 



Dr. Stiles spoke briefly of a recent trip in the West to in 

 vestigate parasites of domestic animals. He had studied GEstrus 

 ovis particularly. He finds, contrary to the accepted views of 

 entomologists and veterinarians that this species is a very dan 

 gerous enemy to sheep. In some large flocks at least 25 percent, 

 of the animals were affected, and after conducting a number of 

 post mortems he was convinced that in many cases this species 

 causes the death of the animal. The loss to farmers has undoubt 

 edly been greatly underestimated by scientific men. He consid 

 ers trephining for the maggots impractical, and has adopted a 

 course of treatment which he thinks will prove important. He 

 inserts an awl into the frontal sinus and through a trochar injects 

 kerosene or gasoline. In case of gasoline poisoning he finds aro 

 matic spirits of ammonia or sulphate of strychnia a good remedy, 

 since gasoline is a heart depressant. He found the sheep tick, 

 Mallophagus ovinus, to be very common in Colorado, where 

 in one place at least it was introduced on bucks imported from 

 Canada. So abundant was it occasionally upon young lambs that 

 100 or more would be found in a space the size of one's hand. 

 Considerable loss results from the abundance of this so-called tick, 

 but the insect is perfectly easy to treat by means of the ordinary 

 sheep dips which need not be applied hot, but are effective when 

 cold. He had been greatly impressed by the damage done by 

 the screw-worm fly {Lucilia macellaria) to herds of cattle in the 

 southwest. Their attack frequently follows the attacks of the 



