178 
Psyche 
[September 
ing flies of this species were numerous in the vicinity of 
Camp Pital and proved to be very annoying. They were 
persistent in their attacks and seemed to be ready to bite at 
nearly any time during the day or early evening. They 
would attack freely while in bright sunshine in open spaces 
but under such condition usually selected the under side of 
one’s arms or hands and did not direct their attacks to the 
face. On rainy or cloudy days they seemed to appear in 
greater numbers. While feeding they became swollen and 
the abdomen when distended with blood assumed a deep red 
color. After becoming engorged they were very sluggish 
and could easily be picked off with one’s fingers. A large 
number of specimens of this species was collected. 
Culicoides fluviatilis Lutz. The small sandflies of this 
species were very prevalent at Camp Pital. Any of the 
members of our party who remained seated in a shady situ- 
ation for a few minutes were attacked by numbers of these 
bloodthirsty diptera. They seemed to become more active 
and persistent in their attacks during late afternoon and 
early evening. 
Culicoides parsensis Goeldi. Only one specimen of this 
species was taken at Camp Pital. They were, however, very 
common in the vicinity of Puerto Armuelles. One morning 
while at the latter place I was engaged in watching the ac- 
tions of a group of monkeys in the forest about a mile from 
the sea-shore and remained seated in a small open area for 
nearly thirty minutes. During this time I was bitten by a 
number of these flies. Their attacks seemed to be mostly 
on my arms and hands. A number of specimens captured 
at this time all proved to be paraensis. 
Lasiohelea sp., probably stylifer Lutz. One specimen was 
collected at Camp Pital. It was taken while feeding upon 
my arm in the early evening as I was seated under a palm- 
thatched shelter. 
Ctenocephalides felis Bouche. A few fleas of this species 
were taken from a dog owned by one of the native hunters 
at Camp Pital. Undoubtedly this species may be found in 
abundance throughout all parts of Chiriqui where cats or 
dogs are present. 
