328 THE CANADIAN ENTOMOLOGIST. 



returned to the surface. It is thus indicated that they are unable or 

 unwilHng to deposit in brittle, and unable to enter clayey soils. 



C. — On March 29th, at i p.m., a single female was confined as usual 

 in a much smaller glass jar (7.5 by 5.5 cm.), containing 3.5 cm. of loamy 

 sod. It began to crawl about at once, and frequently entered loose earth) 

 only to return again to the surface. It was unable to enter the compact 

 clayey loam, and soon died. 



D. — On March 26th, in the afternoon, another female was confined 

 as the preceding. She appeared to be rather weak, and not until about 

 noon, 29th March, did she succeed in entering the earth (between these 

 two dates there was quite a fall in temperature ; the 29th was much 

 milder). 



Several hours afterwards oviposition began. The eggs were deposited 

 beneath the body, the latter arched or curved upwards, and with one side 

 against the jar. At 5 p.m. she was burrowing towards the centre of the 

 jar ; during this process the two posterior pairs of legs were held inert, 

 and somewhat out of the way. 



The eggs were placed irregularly against the glass, 1.6 cm. below the 

 surface of the soil ; the burrow was vertical, or nearly so. On March 30th 

 the insect was lying in a confused heap on its back, about 3 mm. above 

 the egg-mass, and with its head nearest the surface ; loose particles of soil 

 intervened between the eggs and her body. She was but 5 mm. from the 

 surface, and could easily have broken through to the air. She died in the 

 position described. 



E. — At noon, 29th March, eight females and three males were con- 

 fined in one of the larger jars, where they at once began to crawl about. 

 Two pairs were then in copula. 



Later in the afternoon, at 4 p.m., the females, excepting those in 

 copula, were attempting to enter the earth, and were eagerly searching for 

 likely crevices at which to start their burrows. While doing so, several 

 crawled into a space between the glass and soil, full of loose particles, and 

 worked quite a pathway through to the bottom of the jar. From this 

 branches were started, but soon abandoned, and the insects finally always 

 returned to the surface to renew their efforts elsewhere. This again 

 indicates that loose soil is not to their liking. 



