1896.] NATURAL SCIENCES OF PHILADELPHIA. 293 



Mr. Smith has khidly furnished me with the following notes on 

 localities visited as far as they relate to the hymenoptera. 



Santarem. A town at the junction of the Tabajos with the 

 Amazon. Its immediate vicinity is more or less open land, with 

 scattered low trees and a thin grass growth : the type of vegetation 

 called campo in Brazil. Most of the hymenoptera labeled 

 Santarem, were, however, collected a few miles inland or down the 

 Amazon, at the settlements of Panema, Maruru and Taperinha, 

 where most of the land is covered with heavy forest broken by a 

 few clearings. The soil both of campo and forest is sandy. The 

 climate is moderately warm for a region so near the equator, and 

 moist, though not extremely so. 



Monte Alegre is in campo land very similar to Santarem ; it is on 

 the opposite or northern side of the Amazon. 



Specimens marked Pernambuco are from the San Francisco plan- 

 tation, some miles inland : a clearing in forest ; land hilly, and soil 

 clay. 



Rio de Janeiro. Land originally forest. No specimens were col- 

 lected above 2,500 ft. alt. 



Entre Rios, in the State of Rio de Janeiro, is on the Parabyba 

 do Sul River, back of the Organ Mountains. The soil is clay, cov- 

 ered with low and somewhat open forest; climate rather dry. Mr. 

 Smith says : " The insects of Entre Rios, I have found, resemble 

 those of Chapada and Corumba rather than those of Rio." 



Corumbd, in the State of Matto Grosso, on the western bank of 

 the Paraguay, close to the confines of Bolivia. The climate dry and 

 hot ; the vegetation open ; dry forest, full of cacti and other thorny 

 plants. The opposite side of the Paraguay, where some collections 

 were made (these are marked " lowland ") is in the great flood-plain : 

 a vast semi-swampy region, flooded every year during several months. 

 This is the region known to geographers as Lake Xaraes, or, better, 

 the Xaraes Marshes (also written Charaes or Jaraes). 



Piedra Blanca (or Pedra Branca), a small settlement and custom- 

 house just within the boundary of Bolivia, on a lake opening into 

 the Paraguay, and only four miles from Corumba. The land is low 

 and damp and covered with heavy forest, very different from the 

 region about Corumba. 



Pacoval and Pedra de Amolas are settlements on the Paraguay 

 above Corumba, on the edge of the flood-plain, but backed by rocky 

 hills ; land open or forest. 



