ART. 17. LARVAE OF HOLAECTIO TIGER-BEETLES HAMILTON. 29 



CICINDELA LATESIGNATA LeConte. 



Figs. 61, 98, and 128. 



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



Color. — Head and pronotum purplish bronze with a green reflec- 

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

 setae brown. 



Head. — Setae on dorsal aspect long and prominent; diameter of 

 ocellus 2 equal to the distance between ocelli 1 and 2 ; f ronto-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 distal 

 one-half the length of the second, the proximal segment with five to 

 seven setae and the second v/ith ten to eleven; maxilla with the proxi- 

 mal segment of the galea bearing three setae on its mesal margin, max- 

 illary palpus three-segmented; ligula with four fine setae arranged in 

 a transverse row at the ventro-distal end, proximal segment of labial 

 palpus with three spinelike projections on its ventro-distal margin 

 and with two setae on each side of these spines, the proximal seg- 

 ment with four setae and the distal segment with one. 



Thorax. — Pronotum with the cephalo-lateral angles not extending 

 as far cephalad as the cephalo-mesal part, lateral margins carinate, 

 primary setae medium in size and prominent, secondary setae about 

 thirty in number, small (fig. 61). 



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

 and not numerous (fig. 98) ; ninth abdominal sternum with the 

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

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

 one-third the length of the hook (fig. 128). 



Meamremerds.—Li^Vi^\X\ of larvae, 18 to 22 mm.; width at the 

 third abdominal segment, 2 to 2.3 mm.; diameter of ocellus 2, 0.26 

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

 length of fronto-clypeo-labral area, 1.65 to 1.75 mm.; width, 1.75 

 to 1.85 mm. ; length of pronotum, 2.9 to 3.2 mm. ; width, 3 to 3.3 mm. 



The identification of this larva is not positive. They wore col- 

 lected at La Jolla, California, on the bench in the tide flats just 

 above high tide. The holes were from II/2 to 3 inches deep and fre- 

 quently curved to a nearly horizontal position at the bottom. The 

 soil consisted of mud or sand covered with mud. 



