Occasional Papers of the Museum of Zoology 37 



On the Rio Borria and the two quebradas, both Hetaerina 

 macro pus and caja occurred, in every case macro pus being 

 the more abundant. High up the quebrada north of town a 

 single male of capitalis was taken. 



31. Pahna Sola, Venezuela. At kilometer post 37 on the 

 railroad above Tucacas. Elevation, 120 feet. Lies in a nearly- 

 flat, heavily wooded country. The Aroa River here is a swift, 

 generally shallow stream, fifty to sixty feet wide, bed largely 

 sand and the banks adjacent to the stream generally covered 

 with wild cane. Three or four miles above Palma Sola there 

 is a right-hand tributary of the Aroa which is eight to ten feet 

 wide and which, in its characters, is merely a miniature Aroa. 

 In the forests about Palma Sola are the remains of several 

 wet weather streams of considerable size. There are pools of 

 water two to ten feet wide and three to one hundred feet long, 

 generally with little or no flow of water between pools. The 

 stream beds are generally sandy, though some are muddy 

 where there are extensive heliconia growths. Collected March 

 4-10, 1920. 



As might be expected, this region is not rich in Hetaerinas. 

 At a sluggish quebrada about one kilometer north of town we 

 found caja common, and on the same quebrada took two speci- 

 mens of macropus, the only specimens of the latter species 

 seen at Palma Sola. Caja was taken also on the Aroa, on its 

 tributary of similar character, and on an almost dry quebrada 

 crossed by the railroad to San Felipe about five kilometers 

 out from Palma Sola. 



32. Puerto Barrios, Guatemala. Near sea level. Small, 

 sluggish and brackish streams are reached by following the 

 railroad track back from the coast. One stream, the first one 

 above the roundhouse, was fresh (May 28) about half a mile 



