24 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.65. 



Abdomen. — Chitinized areas distinct; secondary setae short, fine, 

 and not numerous (fig. 94) ; ninth abdominal sternum with the cau- 

 dal margin bearing two groups of four setae each; median hooks 

 generally with three setae, inner hooks with two setae, the spine- 

 like projection about one-third the length of the hook (fig. 124). 



Measurements. — Length of larva, 20 to 24 mm., width at the third 

 abdominal segment, 2 to 2.5 mm,; diameter of ocellus 2, 0.25 to 

 0.28 mm.; distance between ocelli 1 and 2, 0.25 to 0.28 mm.; length 

 of fronto-clypeo-labral area, 1.5 to 1.7 mm.; width, 1.5 to 1.7 mm.; 

 length of pronotum, 1.8 to 2 mm., width, 2.9 to 3.2 mm. 



The larvae of this species can be easily distinguished from those 

 of other species by the brown setae on the head and pronotum. The 

 larva is very characteristic in its habitat, which is quite different 

 from most others, as stated by Shelf ord (1908) : 



This species does not deposit eiigs in pure Inimus, but maizes use of little 

 irregularities in clay or sand which contains a little humus aud which is 

 shaded slightly, such conditions as are afforded by falling trees and the erosion 

 of hillsides by small brooks. It prefers a few loose leaves, and will lay eggs 

 under them in preference to other places when they are present. It does not, 

 however, appear to like very shady conditions. Several days spent in the 

 beech and maple forests of northern Indiana has failed to reveal the presence 

 of one of these insects, although they were present in open and partly cleared 

 places a short distance away, where the forest has not become so mesophytic. 



The eggs are laid in June or early July in the shade, and the ma- 

 jority of the larvae reach the third stage by fall. The larvae pupate 

 the following year in July, and the adults emerge in August. In 

 northern Illinois the adults rarely appear in autumn, and it is proba- 

 ble that they remain in the pupal chamber until spring. There are 

 two years between generations. 



Larvae were collected by Professor Shelford from Suman, In- 

 diana, Clinton and Lafollette, Tennessee, in 1908, and by the author 

 from LTrbana, Illinois, in 1916, and College Park, Maryland, in 1922. 



CICINDELA CAMPESTRIS Linnaeus, 



Figs. 150, 162, and 174. 



E. Rosenberg, Seeland, Denmark, 2 larvae, and Meinert, 1890, Zool. Mas., 

 Copenhagen, 2 larvae and 1 pupa, deposited in United States National 

 Museum by Dr. A. Boving. 



Color. — Head and pronotum dark chestnut brown, shiny, lateral 

 margins of pronotum lighter, setae white. 



Head. — Setae on dorsal aspect medium length, prominent; diam- 

 eter of ocellus 2 slightly less than the distance between ocelli 1 and 2 ; 

 fronto-clypeo-labral area as long as broad; U-shaped ridge on caudal 

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

 second segments subequal in length, the third two-thirds and the 



