26 PHAROMACRUS COSTARICENSIS. 



narrow tail. I do not know if this character is sufficient to separate it as a 

 species from the Guatemala one ; but I am of opinion that the name of 

 costaricensis may be retained for this bird as a curious local race, only found 

 up to this time at Costa Rica and Veragua. 



These Trogons are seen all the year round in Costa Rica, where 

 they breed ; and there is little probability that they emigrate to Guatemala. 

 Neither do those of the latter place go to Costa Rica, because they would 

 have to cross forests which are only a few hundred feet above the level of 

 the sea ; and I am not aware that this bird has ever been seen anywhere 

 else except in the mountains not lower than 2500 feet altitude. 



Excepting the four long feathers of the tail, which are much longer and 

 nearly as broad again in the specimens from Guatemala, the two races 

 are exactly alike. 



It has been occasionally domesticated, and kept for several months in 

 private houses. Sometimes it used to go about in the yard with the 

 chickens ; or it would perch on a branch and stay at the same place for 

 hours. It was fed with seeds and fruits. 



At the time of dissection I have found on several specimens a species of 

 parasitic Diptera, which I intend to describe shortly. It is very large and 

 peculiar. 



In fact, there are few birds which are not infested with parasitic insects. 

 Unfortunately, for want of time, I have not been able to secure all of them ; 

 but scarcely any of the skins which I have prepared were without, and it 

 would be very interesting to make a collection of them. New species 



