44 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 05. 



Measurements. — Length of larvae, 22 to 25 mm, ; width at the third 

 abdominal segment, 3 to 3.3 mm. ; diameter of ocellus 2, 0.28 to 0.30 

 mm.; distance between ocelli 1 and 2, 0.31 to 0.33 mm.; length of 

 fronto-clypeo-labral area, 1.9 to 2 mm.; width, 1.9 to 2 mm,; length 

 of pronotum, 2.1 to 2.3 mm.; width, 3.6 to 3.8 mm. 



This species is easily separated from all others by the position of 

 the cephalo-lateral angles of the pronotum, which extend distinctly 

 cephalad of the mesal portion. The larvae were dug at Lafollette, 

 Tennessee, from bare, rocky soil on a steep, sparsely wooded hillside. 

 Recent burning had probably removed the leaves which normally 

 covered the slope. The burrows were perpendicular for the first 

 3 or 4 inches and then curved to a horizontal position. The larvae 

 were not bred, but all other species of the region have been. 



CICINDELA ABDOMINALIS Fabricius. 



Figs. 72, 109, and 139. 

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



Color. — Head and pronotum purplish bronze with a green or blue 

 reflection; setae on dorsal aspect of head and pronotum transparent 

 or glassy, the other setae brown. 



Head. — Setae on dorsal aspect long, slender, and not prominent; 

 diameter of ocellus 2 distinctly greater than the distance between 

 ocelli 1 and 2; fronto-clypeo-labral area as long as broad; U-shaped 

 ridge on the caudal part of f rons bearing two setae ; antenna with the 

 proximal segment slightly shorter than the second, the third one- 

 half and the distal one-fourth the length of the second, the proximal 

 segment with seven or eight setae and the second with ten to twelve ; 

 maxilla with the proximal segment of the galea bearing three setae 

 on its mesal margin, maxillary palpus three-segmented; ligula with 

 four fine setae not arranged in a transverse row at its ventro-distal 

 end, the two median setae caudad of the lateral ones; proximal seg- 

 ment of the labial palpus with three spine-like projections on the 

 ventro-distal margin and with tAvo setae on each side of these spines, 

 the proximal segment with four setae and the distal segment with 

 one. 



Thorax. — Pronotum with the mesal portion extending distinctly 

 cephalad of the cephalo-lateral angles, lateral margins slightly 

 carinate, primary setae long, slender, and inconspicuous, secondary 

 setae short and fairly numerous (fig, 72). 



Abdomen. — Chitinized areas indistinct, secondary setae short, fine, 

 and numerous and occurring between as well as upon the chitinized 

 areas (fig. 109) ; ninth abdominal sternum with the caudal margin 

 bearing two groups of three setae each; median hooks with three 



