346 



M. ETHEL COCHRAN. 



the eggs in this species. The egg cluster is always so attached 

 that one of the adults may coil its body about it. Sometimes 

 a crevice beside a rock is utilized, the eggs, attached by the 

 pedicel to a root or stone above, swinging loose. This brooding 

 by the adults doubtless serves the double purpose of providing 

 moisture and securing protection from insects. 



Several attempts were made to transfer a parent with a cluster 

 of eggs to the laboratory, that the development and hatching 



From left to right: four embryos from the same cluster of eggs, one removed from 

 the egg, one hatched about twelve hours, one about six hours and one about twenty- 

 four hours. (Magnified three and one half times.) (Photographed by the author.) 



might be observed. Damp moss was tried but it invariably 

 moulded. A small jar kept moist with a wad of water-soaked 

 cotton proved no better. Then, because the air of the laboratory 

 seemed so disastrous, it was suggested opening the bottle, in 

 which the eggs w r ere brought from the field, upside down into an 

 overturned sterile jar. Within the jar, the eggs were placed 

 on a strip of filter paper that was so placed on a piece of glass 



