ART. 17. LARVAE OF HOLARCTIC TIGER-BEETLES HAMILTON. 41 



0.20 mm.; distance between ocelli 1 and 2, 0.18 to 0.20 mm.; length 

 of fronto-clypeo-labral area, 1.1 to 1.2 nmi. ; width, 1.1 to 1.2 mm.; 

 length of pronotum, 1.3 to 1.4 mm. ; width, 2.4 to 2.5 mm. 



Remarks. — This is a European species, the larvae of which were 

 purchased from E. Reitter, Paskau, by the United States National 

 Museum. No data accompanied the material. 



CICINDELA PUNCTULATA Olivier. 



Figs. 69, 106, and 136. 



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



the author's collection. 

 1908, SnELFORD, Journ. Linn. Soc. Lond., Zool., vol. 30, p. 172. 



Color. — Head and pronotum purplish bronze with a faint blue 

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

 other setae brown. 



Head. — Setae on dorsal aspect medium in length and prominent; 

 diameter 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 f rons bearing two setae ; antenna with the proximal 

 and second segments subequal in length, the third slightly shorter 

 than the second and the distal about one-half as long as the second, 

 the proximal segment with five or six setae and the second with nine 

 or ten ; maxilla with the proximal segment of the galea bearing three 

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

 with four fine setae at the ventro-distal end arranged in a trans- 

 verse row, proximal segment of labial palpus with three spinelike 

 projections on the ventro-distal margin and with two setae on each 

 side of these spines, proximal segment bearing four setae and the 

 distal segment one. 



Thorax. — Pronotum with the cephalo-lateral angles extending 

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

 carinate, primary setae 5 and 6 small, secondary setae small and not 

 numerous (fig. 69). 



AhdoToen. — Chitinized areas indistinct, secondary setae not numer- 

 ous and about one-half the length of the primary setae (fig. 106) ; 

 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 about one-third the length of the 

 hook (fig. 136). 



Measurements. — Length of larvae, 14 to 16 mm., width at the third 

 abdominal segment, 1.8 to 2 mm.; diameter of ocellus 2, 0.20 to 0.23 

 mm.; distance between ocelli 1 and 2, 0.23 to 0.25 mm.; length of 

 fronto-clypeo-labral area, 1.4 to 1.5 mm., width, 1.3 to 1.4 mm.: 

 length of pronotiun, 1.5 to 1.7 mm., width, 2.3 to 2.7 mm. 



