94 Journal New York Ent. Soc. [Vol. ii. 



Thorax 9 dilated posteriorly, elytra 2 angulated behind the humeri. 

 Length, 14.5 — 15 mm. = .56 — .60 inch. 



Habitat, Atlantic sea-shore only from N. Y. southward. In 

 the vicinity it occurs from July to September. 



C. marginata fab. (I'^ig. 20)-- Humeral angles distinct, under- 

 side green bronze, hind trochanters rufous; above brown or greeii 

 bronze with basal dot, obliciue humeral lunule hooked at tip, a slen- 

 der long tortuous midiUe band bent and confused, right mandible of 

 <^ toothed beneath ; apical lunule inflected at both ends and a white 

 margin connecting al! the markings. Sexual differences in elytral 

 tip: rj" elytra at tip spiniform, retracted; O outer margin entire, 

 sutural marginemarginate. Length. 13.5 — 14. 8 mm. = .54 — .60 inch. 



Habitat, .\tlantic sea-coast from Mass. southward, on the 

 marshes and mudflats beyond the sea-beaches. August, September. 

 In the vicinity of N. Y. City this species was formerly abundant 

 near Manhattan Beach but is becoming more rare. 



C. cuprascens Zf^Y. — Humeral angles distinct, underside green 

 bronze, hind trochanters rufous; above greenish bronze, white 

 basal dot, humeral lunule hooked at tip, middle band tortuous and 

 confused before the dilated tip, apical lunule inflected at both ends 

 and a white margin connecting all the markings ; right mandible c? 

 not toothed. Sexual differences in elytral tip : r^ outer margin 

 sinuate, tip obtuse ; V outer margin strongly sinuate with a tooth 

 one-fourth from tip ; tip rounded. Length, 13 — 14 mm. = .52 — 

 .56 inch. 



Habitat, Ohio on mudflats, N. 111., Ky., also Mont., Wo., Kan., 

 Neb., Dak. 



C. puritana floni. ( l'"ig. 2 1 ) — Humeral angles distinct, underside 

 metallic blue, hind trochanters rufous; above brown bronze with 

 white basal dot, humeral lunule hooked at tip, middle band tortuous 

 and confused before the dilated tip, apical lunule inflected at both 

 endsand a white margin connecting all the markings; right mandible 

 rf not toothed ; sexual differences in elytral tip : (j' outer margin 

 sinuate ; tip subacute ; 9 outer margin strongly sinuate with a rect- 

 angular tooth one-fourth from apex. Length, T 1.5 mm. = .46 inch. 



Habitat, N. Y. (?), N. H., Mass. rare. 



C. macra Lci. — Humeral angles distinct, underside greenish 

 bronze, hind trochanters rufous; above brown bronze with white 

 basal dot, humeral lunule hooked at tip, middle band tortuous and 

 confused before the dilated lip, apical lunule inflected at both ends 



