282 ENTOMOLOGICAL NEWS [XXXI, '20 



Here the well-kept coffee plantation and open areas of 

 rank grasses and sugar cane were also explored, as well as 

 the cut upper faces and surfaces of the trails through the 

 forest. 



IV. San Lorenzo, slopes above Cincinnati, from 5000 to 

 7900 feet. In lower portion clothed with a denser and wetter 

 forest than below. In some parts, however, composed of 

 much lower and smaller trees. 



In upper portions still more water-soaked, with much vine 

 bamboo and many tree ferns, the gnarled and lower trees 

 heavily laden with bromeliads, the wax palm overtopping these 

 and giving an added beauty to the upper slopes. 



Small areas, cleared at some time, were found on these 

 slopes, overgrown with a dense mat of bushes and vines, in 

 some of which dead saplings were numerous. 



The forest above and below differs greatly in appearance 

 and species represented, but the transition is very gradual 

 and we would consider that but a single life zone is represented 

 between these elevations. 



V. San Lorenzo, summit bald, 7900 to 8500 feet. This is 

 an area which is now practically destitute of trees. The 

 ground is covered waist to shoulder high with a dense growth 

 of raspberry vines, bracken and many low bushes and plants, 

 among which a bromeliad, similar to those which flourish on 

 the tree trunks in the forest below, is abundant and a most 

 striking feature. 



The lower north slopes of San Lorenzo were also examined, 

 conditions rather similar to those at Hacienda Cincinnati 

 being found at Hacienda Victoria, 4100 feet, and down to 

 Cinco Bocas, 3500. The heavily forested ravines at Minca, 

 however, at an elevation of 2500 feet, showed a decided change, 

 being in fact more like the high rich forest at Aracataca. 



For the region, the lowlands south and east of the moun- 

 tains, and the Sierra Nevada from 8500 to 17500 feet remain 

 to be studied, including the distinctive zones of the paramo 

 and of the snows. 



It was noted that a move from one distinctive area to an- 

 other was of primary importance in securing additional 



