THE CANADIAX ENTOMOLOGIST. 



13 



S^l-facc of ^frauvxct. 



clustered together, so that a dozen may be discovered in an area of a foot 

 square. They usually inhabit situations where the sand is constantly 

 drifting, which on account of its continual movement and lack of vegeta- 

 tion is always moist a few inches below the surface. The life-cycle is 

 approximately the same as venusta. On July 22, 1Q07, larva; had filled 

 up old burrows with earth from the pupal cavity. 'I'his latter was com- 

 menced three inches below the ground, and was five inches in length, 

 gradually sinking at its extremity to five inches below the surface. (Fig. 

 2.) Larvce at this time were still quite active, and at once commenced to 

 dig new holes when disturbed. Two 

 pup^e were found on August 11, one only 

 just changed from larva, and also an 

 adult still in the pupal chamber. Most 

 of the beetles were out by the 2olh, 

 though odd individuals appeared as late 

 as the first of September. The larvee 

 remain active in the pupal chamber for 

 fully two weeks, and occasionally longer. 



Purpurea iii/ibalis, klg. — Larvse <nch^ s 



are flsually found in damp situations, not 

 more than six feet from surface water. 

 Old pocket gopher hills and damp fields, 

 where there are open spots, seem to be 



preferred. Pupal chambers are constructed some weeks before trans- 

 formation takes place. The few examined opened at or near the surface 

 of the ground, and varied from three to five inches in length. Two 

 remained open for several days. 



In summer larval holes are seldom more than six inches in depth, 

 and their average, when closed in the fall, from the few measured, seems to 

 be about I'ight inches. Twenty-four adults dug out in wet, sandy soil were 

 found at an average depth of six inches, with little variation, and the 

 burrows were open nearly the entire length. 



The larval life lasts approximately two years, and the beetles from 

 nine to eleven months. 



Tranquebarica, Hbst. — Little new information has been secured 

 regarding this species. Larvse still digging were found on September 21st 

 at an average depth of 17 inches, the deepest being 20 inches. Two holes 



Fig. 2 — Pupal burrow of Cicindela 

 limbata. 



