12 U Hirer sU\' of Michigan 



above the town on the left l^ank of the Rio Fundacion. The 

 spot was reached by following trails through the woods and 

 not by going up the river directly so I can only roughly esti- 

 mate the distance at one to two miles. The river banks were 

 clothed with a dense impenetrable growth of Heliconias, bam- 

 Ijoos and palms. At the place where the specimens were found 

 the river bank was slightly lower for a short distance and 

 across this low area the river had swept, during some recent 

 high w^ater period, into a large jungle-surrounded lagoon only 

 a short distance from the river. The flow of water left the 

 numerous Heliconias and some smaller plants bent down and 

 there were a few dead tree tops scattered about, but the jungle, 

 elsewhere present, was largely wanting, admitting both light 

 and air, and making it possible for the collector to move about 

 freely. Knowing how productive such locations often prove, 

 we examined it just before noon as we were going up the river, 

 but without detecting any gomphines, though it is not im- 

 possible they may have been present. As we returned in the 

 afternoon, we caught our tirst male along the jungle path near 

 the overflow area. Finding no more along the path, we spent 

 the next hour, from three-thirty to four-thirty p. m., collect- 

 ing in the open area and succeeded in taking ten more speci- 

 mens. The afternoon was cloudy without any sunshine. The 

 place was visited a second time four days later at about the 

 same time of day, and the same number of specimens was 

 secured. During our second visit, the day was bright and sun- 

 shiny, but the jungle surrounding the open area threw much 

 of it in shade. 



The gomphines were usually resting on twig tips or similar 

 perches from six inches to two and one-half feet high, lower 

 locations being preferred. Xo difference was detected in the 

 actions of the sexes. They were not wary, but once flushed, 



