28 REVISION OF THE CICINDELZ OF THE UNITED STATES. 
these comparisons I have availed myself of the copious collection of foreign species be- 
longing to the Academy of Natural Sciences, and but recently presented to that institution 
by Mr. John A. Guex. As many groups of foreign species are not represented in our fau- 
na, I have indicated such as could be conveniently placed in the table following; these 
are marked by brackets, and I have also occasionally added the name of a foreign species; 
also within brackets, where the American representatives of the group were not likely to 
be extensively known. The table thus has assumed the form of a general, but very im- 
perfect, arrangement of the contents of the genus. 
While examining the foreign species, my attention was directed to the impossibility of 
reconciling the system of marking of the Hast Indian C. 4-lineata Fabr. with that seen in 
any of the groups of genuine Cicindelw; but on closer inspection I found that accom- 
panying the two yellow stripes on each elytron, was a remarkable character that seems 
to have escaped previous observers. It is the presence of a longitudinal dorsal suture 
each side of the thorax: the pronotum, or tergum, is in fact narrowed, while the mass 
of the prothorax is subjected to no diminution; the lateral sutures separating the pro- 
notum from the lateral pieces of the prothorax, which in all other species are seen on 
the under surface, in this instance become dorsal. This peculiarity seems to necessitate 
the formation of a new genus, for which the name Hypetha may be adopted. 
The system of colouration is called normal in the following pages when the under sur- 
face and legs are of a more or less metallic colour; the abnormal variations are few, and 
consist in the abdomen being red, or the legs in part or in whole pale or red, without me- 
tallic lustre. 
The spots of the elytra are normal, when they are of the following type, more or less 
reduced by deficiency ; a humeral narrow curved spot, called lunule; a middle band more 
or less bent, and descending internally; and an apical curved line usually bent inwards 
at its anterior part: these spots are sometimes confluent on the margin, and sometimes 
separate: they are sometimes entire, and sometimes interrupted, and occasionally reduced 
to merely marginal spots. 
Abnormal variations occur; 1, by additional spots at the base or near the suture 
(groups XI., XII., x11.;) 2, by the deficiency of the terminal part of the apical lunule, while 
its anterior part is well marked, (groups 11., 11., Xvu.;) 3, by the inner portion of the middle 
band being lost, while the external marks become confluent, forming a broad white mar- 
gin, only slightly lobed internally (groups xx., XXI., Xxu.:) 4, by the marks being removed 
more or less from the margin of the elytron (group X.; and still more in xxmt.) 
The form is called normal when the humeral angles are distinct, and the elytra mode- 
rately convex and oval, when the head and eyes are moderately large, but not excessive, 
and when the thorax is quadrate, trapezoidal, or subcylindrical, with well-marked impres- 
