28 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. G5. 



until about the middle of June, pupate in July, and the adults 

 emerge the latter jjart of August. These hibernate and become 

 sexually mature the following April. There are two years between 

 generations. The larvae studied were collected at Lyon, Illinois. 



CICINDELA. species B. 



(Possibly C. CIMARRONA LeConte or OBSOLETA Say.) 



Figs. 62, 99, and 129. 



Shelford, not reared, larvae in collection of the University of Illinois. 



Color. — Head and pronotum dark purplish bronze with a strong 

 green or blue reflection, lateral margins of pronotum slightly lighter 

 in some specimens; setae on dorsal aspect of head and pronotum 

 white, the other setae brown. 



Head. — Setae on dorsal aspect medium in length, stout and promi- 

 nent ; diameter of ocellus 2 equal to the distance between ocelli 1 and 

 2; fronto-clypeo-labral area wider than long; U-shaped ridge on the 

 caudal part of frons bearing two setae; antenna with the proximal 

 segment as long as the second, the third two-thirds and the distal 

 slightly less than one-half the length of the second, the proximal seg- 

 ment with 7 to 9 setae and the second with 9 to 11; maxilla with 

 the proximal segment of the galea bearing three setae on its 

 mesal margin, maxillary palpus three-segmented; ligula with 

 four fine setae arranged in a transverse row at its ventro-distal end, 

 proximal segment of the labial palpus with three spinelike projec- 

 tions on the ventro-distal margin and with two setae on each side of 

 these spines, the proximal segment with four setae and the distal 

 segment with one. 



Thorax. — Pronotum with the cephalo-lateral angles extending 

 almost as far cephalad as the mesal portion, the lateral margins 

 slightly carinate, primary setae long and prominent, secondary setae 

 minute, not more than 25 (fig. 62). 



Abdomen. — Chitinized areas distinct, secondary setae almost as 

 long as the primary setae, prominent and not numerous (fig. 99) ; 

 ninth abdominal sternum with the caudal margin bearing two groups 

 of four setae each; median hooks with two setae; inner hooks with 

 two setae, the spinelike projection one-third the length of the hook 

 (fig. 129). 



The larvae were collected at Alamosa, Colorado, on the banks of 

 the Rio Grande in dark, coarse sand and on level and sloping land 

 which was always moist. The burrows were from 2 to 4 inches deep, 

 usually sloping, the direction varying with the kind of soil. 



