^KT.17. LARVAE OF HOLARCTIC TIGER-BEETLES— HAMILTON. 39 



7 500 feet. The holes were about 5 inches in depth and entered on 

 a'steep, sloping bank and curved to a vertical position at th^ bott«^^ 

 Dr F E. Blaisdell, sr., reports collecting the larvae from Calif oi ma 

 in sand The larvae studied were not from reared material, however, 

 their peculiar location and the collection of adults at these places 

 would indicate that the identification is correct. 



CICINDELA DUODECIMGUTTATA Dejean. 



Figs. 68, 105, and 135. 



SHELFOKD, reared, larvae in the collection of tbe University of Illinois and 



the U. S. National Museum. 

 190S, Sheuord, Jmini. Linn. Soc. Lond., Zool., vol. 30, pp. 171-1^-i. 



(7o;^._Head and pronotum coppery bronze with a green reflec- 

 tion, lateral margins of pronotum slightly lighter in some specnner>s 

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



""' W.-Setae on dorsal aspect long, stout, and prominent; diameter 

 of ocellus 2 slightly less than the distance between ocelli 1 and -J, 

 ? on o""dpeo-irbral area wider than long; U-shaped ridge on caudal 

 paifof frons bearing two setae; antenna wit^i the proximal seg- 

 ment slightly shorter than the second, the third two-thirds and he 

 distal one-half the length of the second, the proximal segment w h 

 9 to 11 setae and the second segment with 9 to 11 setae; maxilla 

 with the proximal segment of the galea bearing '^^'^^''"'^^ 

 mesal margin, maxillary palpus three-segmented; ligula with foul 

 Hne setae afraiiged in a transverse row at its vei^ro-distal end, proxi- 

 mal se-ment of labial palpus with three spinelike projections on the 

 ™ tro^distal margin and with two setae on each side of these spines, 

 the proximal segment with four setae and the distal segment with one 

 rW.-Pronotum with the cephalo-lateral angles extending as 

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

 primary setae medium in size and prominent, secondary ^^'-'= ™>"" ^J 

 not more than 10 in number, and not with a row on each side of the 



Tjlmi-Chitinized areas distinct, secondary setae about one- 

 third the length of the primary setae, fine and not numerous (hg 

 106) ■ ninth abdominal sternum with the caudal margin bearing two 

 Iroi^s of three setae each; median hooks with three setae; inner 

 Cks with two setae, the spinelike projection one-thnd the length of 



''^./!::ti'f«i-Length of larvae, IB to 20 mm width at the third 

 abdominal segment, 2.2 to 2.4 mm.; diameter of ocellus 2, 0.26 to 

 28 mm.; distance between ocelli 1 and 2, 0.28 to 0.30 mm.; length 



