AUT. 17. LARVAE OF HOLABCTIC TIGER-BEETLES HAMILTON. 25 



distal one-half the length of the second, the proximal segment with 

 five or six setae and the second with seven or eight ; maxilla with the 

 proximal segment of the galea bearing three setae on its mesal mar- 

 gin, maxillary palpus three-segmented ; ligula with four fine setae 

 arranged in a transverse row at its ventro-distal end, proximal seg- 

 ment of labial palpus with three spinelike projections 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 as 

 far cephalad as the mesal portion, lateral margins slightly carinate, 

 primary setae not large, distinctly flattened, nor prominent; second- 

 ary setae small and not numerous (fig. 150). 



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

 and not numerous (fig. 162) ; ninth abdominal sternum with the 

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

 with three setae; inner hooks with two setae, the spinelike projection 

 about one-half the length of the hook (fig. 174). 



Measurements. — Length of larva, 22 to 26 mm. ; width at the third 

 abdominal segment, 2.5 to 3 mm. ; diameter of ocellus 2, 0.22 to 0.24 

 mm. ; distance between ocelli 1 and 2, 0.26 to 0.28 mm. ; length of 

 fronto-clvpeo-labral area, 1.7 to 1.9 mm.; width, 1.7 to 1.9 mm.; 

 length of pronotum, 1.9 to 2.1 mm. ; width, 3.6 to 3.8 mm. 



The larva of this species is quite similar to that of sexguttata^ but 

 can be distinguished from it by the different colored setae on the 

 head and pronotum and the longer spinelike projection on the inner 

 hooks. This species is an European form and does not occur in the 

 United States. 



CICINDELA LIMBALIS Klug. 



Figs. 1, 5, 6, 7, S, 14, 17, 21, 22, 23, 27, 28, 32, 33, 37, 38, 39, 40, 42, 52, m, 54, 96, 



and 126. 



Shelfoed, reared, larvae in the collection of the University of Illinois and 



the author's collection. 

 1908, Shelfokd, Journ. Linn. Soc. Lond., Zool., vol. 30, pp. 164-165. 



Color. — Head and pronotum dark purple with a green reflection; 

 setae on dorsal aspect of head and pronotum white, the other setae 

 brown. 



Head. — Setae on dorsal aspect long, slightly flattened and promi- 

 nent; diameter of ocellus 2 distinctly less than the distance between 

 ocelli 1 and 2; fronto-clypeo-labral area slightly wider than long; 

 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 

 two-thirds and the fourth one-half the length of the second, the prox- 

 imal segment with five or six setae and the second with seven or 

 eight ; maxilla with the proximal segment of the galea bearing three 



45554— 25— Proc.N.M.vol.65 33 



