The Crane-Flies of New York — Part II 743 



earth from their haunts m a 4- or 6-dram shell vial, moisten the earth, 

 and place a thin layer of moss over it. The vial should not be corked, 

 but should be covered with a piece of cheesecloth held in place by rubber 

 bands. In the case of carnivorous species, as the Hexatomini and the 

 Pediciini, individuals should be isolated in vials, but the herbivorous 

 species may be bred in large numbers in single containers. The predatory 

 forms are usually distinguished without difficulty by their extremely 

 active, snakelike motions, the other species being more sluggish in their 

 actions. 



Strictly aquatic forms, such as Antocha, are reared only with great diffi- 

 culty. These species can survive only in rapidly flowing, well-aerated 

 water, and it is usually a difficult matter to imitate this condition success- 

 fully. The best plan is to place rearuig cages in the natural haunts of 

 the larvae. This can be done if a suitable location is sufficiently close at 

 hand and free from disturbance by inquisitive passers-by. The chief 

 source of danger to breeding cages in natural streams is that a sudden 

 rise of water may suffocate the larvae or wash the cages downstream, 

 or else may destroy the contents of the cage by a thick deposition of silt. 

 Lotic species that are discovered in streams far removed from the laboratory 

 can be transported alive for long distances in folds of wet cheesecloth. 

 The writer has found this to be the most satisfactory way to keep advanced 

 pupae alive until they are ready to emerge as adults. 



In general, the writer has foimd species of the tribe Pediciini the most 

 difficult to rear, and the Limnobiini and the Eriopterini perhaps the 

 easiest. Mud-inhabiting species are easily reared, l)ut species from rushing 

 torrents are at the opposite extreme and it is almost an impossibility to 

 bring some of these species -thru to the adult condition. 



TYPES OF THE IMMATURE STAGES 



The material on which this study is based was almost entirely reared. 

 It seems desirable that these authentic specimens of the larva and the 

 pupa should be so designated that they will have a value greater than 

 that possessed by ordinary specimens. No terms for the designation of 

 types of the immatiu'e stages are known to the writer, and the two that 

 are needed in this paper are here defined as follows: 



Nepionotype, The type of the larva. 



Neanotype, The type of the pupa. 



