48 REVISION OF THE CICINDEL® OF THE UNITED STATES. 
The thorax has more or less elevated posterior angles, and in the female is sometimes 
wider towards the base. The form is nearly cylindrical, the front is hairy, finely striate 
each side. The elytra of the female are somewhat wider than those of the male. The 
markings are either narrow or wide; the humeral lunule is recurved posteriorly, the mid- 
dle band is long and fimbriate, sometimes tortuous; the whole lateral margin is white, the 
apical lunule is lost in the white margin, but is slightly dilated at the suture and at the 
anterior extremity; they are also marked, except in C. sperata, with a large basal spot: 
the tips are feebly serrate. The body beneath is densely clothed with white hair, with 
the middle of the pectus and the abdomen glabrous. The legs are long, and the trochan- 
ters are red. The labrum is three-toothed, but the middle tooth is more prominent; the 
palpi are pale with dark tips. 
Two principal forms may be distinguished: 
1. Salt water species haying the elytra rounded on the sides, with the suture of the female retracted, and the 
tips separately rounded. C. lacerata and marginata. 
2. Fluviatile species with cylindrical elytra, which in the female are obliquely sinuate and armed with an ex- 
ternal tooth near the tip. C. cuprascens, blanda, macra, sperata. 
85. C. lacerata, olivaceo-cenea, capite thoraceque subtiliter albo-pubescentibus, hoc quadrato, latitudine sub- 
longiore, elytris latiusculis confertim punctatis, macula basali, margine lato lobato, ramo humerali subobliquo hamato, 
fascia media refracta elongata fimbriata, lunulaque apicali utrinque inflexa albis, ad apicem serrulatis singulatim ro- 
tundatis, spina suturali distincta; subtus dense albo-pubescens, medio glabra, pedibus longissimis, trochanteribus 
rufis; labro albo unidentato. Long. -42—-45. 
Mas thorace lateribus vix rotundatis, mandibulo dextro dente inferiore obtuso armato; elytris sutura modice re- 
tracta. 
Femina thorace lateribus paulo rotundatis; elytris sutura valde retracta 
Chaudoir, Bull. Soc. Imp. Moscow, 1854. 
Louisiana and Florida, on the coast of the gulfof Mexico. Quite distinct from the fol- 
lowing by the broader elytra of the female not being deflexed at tip, and by the inferior 
tooth of the right mandible of the male being obtuse, and by the difference in the apical 
angles of the elytra. 
86. C. marginata, olivaceo-eenea, capite thoraceque subtilius albo-pubescentibus, hoe quadrato, elytris con- 
fertim punctatis ad apicem serrulatis, macula basali, margine lato lobato, ramo subhumerali subobliquo hamato, fas- 
cia media longa refracta fimbriata, lunulaque apicali utrinque inflexa albis; subtus dense albo-pubescens, medio 
glabra, trochanteribus rufis, pedibus elongatis; labro albo unidentato. Long. -43—-55. 
Mas thorace postice haud latiore, mandibulo dextro dente elongato inferiore armato, elytris spina suturali promi- 
nula. 
Femina thorace postice subampliato, elytris sutura valde retracta ad apicem deflexis. 
Fabr. Syst. El. 1,241: Herbst, Kafer, 10, 206: Say, Trans. Am. Phil. Soc. 1,417; tab. 13, f. 6: Gould, 
Bost. Journ. Nat. Hist. 1, 48. 
C. variegata Dej. Sp. Gen. 1, 84. 
Variat maculis obsoletis, margine lato, maculaque basali utrinque relictis. 
