1 8 E. B. Williamson 



and then kept to the right, following the cattle paths through the brushy 

 pasture, we came to the Quebrada Camelia. By keeping to the left instead 

 of to the right, we would come to the Quebrada Sabaleticus, but this route 

 to the latter stream was longer than the one described above. The Quebrada 

 Camelia is another beautiful little forest stream about twice as large as 

 the Cristalina and two-thirds or three- fourths as large as the Sabaleticus. 

 Here we took the fifth known specimen of Cyanogomphus, a new species, 

 no two specimens of the same species being known. 



These three quebradas are all tributaries of the Rio Diez-y-ses. Their 

 locations have been described at some length because of the wonderful 

 collecting conditions found about Cristalina. In the town and along the 

 edges of the brushy pastures Gynacanthas flew in numbers after sundown. 

 The edges of the forest where tree tops and logs lay in confusion were- 

 alive with a great variety. of libellulines. In sunny nooks several species of 

 Macrothemis hawked in numbers. Butterflies and beetles were numerous 

 and varied, and many birds noticed nowhere else were seen here. The lo- 

 cality was readily accessible, being reached by train from Puerto Berrio, 

 where all the river steamers from Barranquilla stopped. The people were 

 kind and helpful in every way, and altogether this was the most ideal col- 

 lecting locality I have found in the tropics. Expenses were at a minimum. 

 Our room cost us about fifty cents a day. Arrangements could be made 

 doubtless at half this price. Our food with the Zapata family was good, 

 though unvaried, and cost fifty cents a day. We paid Lina one dollar a 

 day for acting as mozo. 



The weather conditions at Cristalina were not the best when we were 

 [here as the following brief notations for several consecutive days will show : 

 February 12, sunshine most of the day; 13, cloudy most all day; 14, cloudy 

 until noon, afternoon sunny; 15, cloudy all day, a few minutes rain in the 

 afternoon ; 16, forenoon cloudy threatening rain, afternoon cloudy with short 

 mtervals of sunshine, rained during the night; 17, forenoon fairly clear, 

 afternoon mostly cloudy ; i8, rained about six a. m. but the day was gen- 

 erally sunny; 19, a drizzling rain for fifteen to twenty minutes about eleven 

 a. m., weather conditions unfavorable all day. 



February 20 we returned to Puerto Berrio with our collection number- 

 ing 148 species and 7,993 specimens. The next day we collected once more 

 in the wood near Puerto Berrio. Along a wood cutter's trail in the forest 

 near the stream J. W. saw a red or reddish aeshnine ( ?) almost as large 

 as a Staurophlebia. 



February 22 we left Puerto Berrio on the steamer Ayapel and passed 

 Barranca Bermeja about one p. m. Here great schools of fish were swim- 

 ming up stream near the bank, forming a wide silvery ribbon in the water. 

 Crocodiles were very numerous in the river. On February 23 we saw 

 twenty-eight lying closely together on one sandbar and forty-six on another. 

 A herd of cattle were in the water near the second group but the crocodiles 

 and cattle paid no attention to each other. Our boat tied up for the night 

 at a wood pile a short distance above El Banco, where we arrived about six- 

 thirty a. m., February 24. We arrived at Magangue about five-thirty p. m. 



