Occasional Papers of the Museum of Zoology 41 



was associated with macropus. It disappeared about a mile 

 below where we first found it. We found it again under sim- 

 ilar circumstances on a right-hand tributary quebrada just 

 above Las Quiggas. Macropus occupied the streams between 

 the habitats of capitalis and caja, overlapping where their hab- 

 itats came together. It was the most abundant and widely 

 distributed of the San Esteban Hetaerinas. On the rocky 

 quebrada on the left bank of the Rio San Esteban, opposite 

 the old Salom home, we were surprised to find no Hetaerinas. 



39. San Felipe, Venezuela. Elevation, 745 feet. The town 

 lies in the broad, alluvial plain of the Yaracuy River. All the 

 stream beds about San Felipe were dry except the nearby 

 mountain quebradas and a few small, short spring streams. 

 The quebrada from which the city derives its water supply is 

 open, rocky, swift and bed-scoured. We found it impossible 

 to follow the stream after a short distance above the intake 

 because of the precipitous sides and deep pools. Collected 

 ]\Iarch 2 and 3, 1920. 



Only a single specimen of HetcLerina caja was taken here, 

 but macropus was common on all the streams. 



40. San Juan River, near San Juan, Trinidad. A gravelly 

 stream with some boulders, swift-flowing. Collected March 

 2, 1912. 



Hctacrinajcaja and macro pus w^ere both common on this 

 stream, the former twice as numerous as the latter. 



41. San Pedro Sula, liondnv3iS. Estimated elevation about 

 250 feet. The city lies in a broad valley, with the nearest 

 hills about two miles south of town, where a small woodland 

 ravine stream flows from the hills into the valley. Along this 

 small stream occurred the richest Hetaerina fauna I have seen. 

 Collected February 26-28, 1905, 



