148 THE CANADIAN ENTOMOLOGIST 



Spharagemon collar e Scudd. Egg-laying covers approximately 

 the same dates as the Dissosteira. A female was seen seeking a 

 suitable situation on September 25, and after three attempts to 

 insert her abdomen chose a place close to some herbage in sandy 

 soil. The customary kicking motion accompanied the drilling 

 process. At the end of 34 minutes she withdrew her abdomen 

 and hopped away without depositing any eggs. A second at- 

 tempt, covering approximately the same time resulted in eight eggs 

 being laid; whereupon the locust departed without any attempt 

 to fill in the cavity. Another female on the same date took two 

 hours and three minutes seeking for a suitable place to oviposit, 

 and during that time thrust her abdomen into the soil on 24 oc- 

 casions, remaining in some places for 15 minutes, at others merely 

 making a short test. She frequently returned to the same situa- 

 tion, as a consequence of which seven tests were made within a 

 few inches of each other. Eventually becoming satisfied she 

 placed her eggs among the roots of a lambs'-quarters plant, com- 

 mencing at dusk and finishing at 7.50 p.m. She then carefully 

 covered the hole with her hind legs and staggered away, being 

 weak from the cold — the temperature registering 50 degrees F. 

 This egg-sack had practically no neck and contained but 11 eggs. 

 Another specimen, on September 30, covered the hole with both 

 forward and backward kicks. The egg-sack, though considerably 

 larger than those mentioned above, contained but two eggs. A 

 fourth egg mass provided 12 eggs. These were all buried on 

 stubble land. 



Spharagemon bolli Scudd. This species is often found as- 

 sociating with the last, but prefers less open situations. An 

 ovipositing female, on September 29, had chosen a place in the 

 middle of a trail close to some trees. She remained without mov- 

 ing for 42 minutes from the time when first noticed. The egg 

 chamber was covered in the usual fashion and the egg-pod, with a 

 neck reaching almost to the surface of the ground, contained 10 

 eggs. A second individual located two days later did not differ 

 in its methods from that of the above. 



Locustinae. 



Melanoplns atlanis Riley. This species, known popularly as 

 the lesser migratory locust, ranks above all our native grasshoppers 



