ART. 17. LARVAE OF HOLARCTIC TIGER-BEETX,ES HAMILTON. 53 



2 parasites and a fourth larva had three parasites attached. The 

 larval parasites were attached on the side of the abdomen between 

 the second and sixth abdominal segments. No uniformity appeared 

 to exist as to the point or method of attachment. 



The parasites were Dipterous larvae about one-sixteenth to one- 

 ■eighth of an inch long. They are probably those of the bee-fly, Spo- 

 gostylum anale^ which Shelford describes as parasitizing Cicindela 

 scutellaris lecontei. 



CICINDELA HYBRIDA Linnaeus. 



Figs. 154, 166, and 177. 



E. Rosenberg, Seeland, Denmark, reared, larvae deposited in the United 

 States National Museum by Dr. A. Boving. 



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

 ish blue 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 equal to the distance between ocelli 1 

 and 2; fronto-clypeo-labral area slightly wider than long; U-shaped 

 ridge on caudel part of frons bearing three setae, the middle one 

 indistinct; antenna with the proximal and second segments sub- 

 equal, the third two-thirds and the distal one-half the length of the 

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

 9 or 10; maxilla with the proximal segment of the galea bearing 

 three setae on its mesal margin, maxillary 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 the ventro-distal margin and with two setae on each 

 side of these spines, the proximal segment with four setae and tlie 

 distal segment with one. 



Thorax. — Pronotum with the cephalo-lateral angles extending as 

 far cephalad as the mesal portion, lateral margins carinate, primary- 

 setae not large or distinct, secondary setae short, slightly flattened 

 and numerous (fig. 154). 



AhdoTnen.—Chiimize^d areas distinct, secondaiy setae short, small 

 and not numerous (fig. 166) ; ninth abdominal sternum with the 

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

 with four setae; inner hooks with two setae, the spine-like projec- 

 tion not more than one-fifth the length of the hook (fig. 177). 



Measurements. — Length of larvse, 20 to 23 mm., width at the third 

 abdominal segment, 2.5 to 3.9 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, 1.95 to 2.05 mm. ; 

 length of pronotum, 2.1 to 2.3 mm., width 3.4 to 3.6 mm. 



