250 [JANUARY, 
Jong, while in reality the trochanter is meant. The bibliography of our species 
is as follows: 
C. pulsator Hald. Proc. Acad. Nat. Sc. 3, 348. Chorea pulsator Hald. 
ibid. 3, 150. 
For the typical female I am indebted to the liberality of Mr. Haldeman; and 
for a fine male, found in Ohio, to Dr. Schaum. | 
CuavuLiocnatHus Hentz. 
1. C. discus, luteus, antennis pedibus pectoreque medio nigris, thorace 
elliptico longiusculo, lateribus reflexis. Long. °6. 
Several specimens;from the Mexican Boundary, Prof. Baird; collected by 
Mr. Clark, under Col. J. D. Graham. Body elongate, parallel, very finely 
pubescent, luteous yellow; antenne black, 3d joint nearly equal to the 4th; 
head elongate, palpi and mandibles black; occiput sometimes fuscous; thorax 
nearly twice as wide as the head, louger than wide, apex very much rounded, 
slightly reflexed, base less rounded, maryined, sides strongly reflexed, disc 
scarcely uneven, shining, sometimes witha black spot on the little protuberance 
each side of the middle; elytra opaque, coarsely punctured with two faint ele- 
vated lines; sometimes each is marked with a black dot at the posterior third. 
Beneath luteous, middle of the pectus and feet black; trochanters testaceous ; 
anal segment of the male fuscous. 
2. C.scutellaris, elongatus, niger, thorace luteo maculis 2 nigris conflu- 
entibus notato, apice rotundato, lateribus reflexo, elytris luteis macula com- 
muni scutellari posticaque utrinque nigris, abdomine luteo. Long. °48. 
Several males from the same locality as the preceding. Body slender, black, 
finely pubescent; head moderately elongated, third joint of the antennz one 
half as long as the 4th; thorax a little longer than wide, rounded at the apex, 
reflexed at the sides, margined and slightly sinuate at base, disc uneven, with- 
out lustre, yellow, with two large confluent black spots. Elytra without lustre, 
coarsely punctured, yellow, with a large common triangular spot at the base, 
and another elongate one on each behind the middle, black. Abdomen yellow. 
Couuors Erichson. 
C. balteatus, niger, breviter nigro-pilosellus, brevissime argenteo pu- 
bescens, capite antice, thoracis subtiliter punctulati limbo loto, antennarumque 
basi rufis, elytris punctatissimis rufis basi maculaque postica maxima cyaneis. 
Long. °31 
Two specimens from Tampico (Mexico), Lieut. H. Haldeman; and one from 
the Mexican Boundary, collected by Mr. Clark. This is the largest species I 
have seen. Head black, front mouth and base of antenne rufous. Thorax very 
finely punctured, one half wider than long, rounded, rufous, with a large hexa- 
gonal black spot, which is a little emarginate before and behind. Elytra wider 
than the thorax, very densely punctured, rufous with four blue spots, which are 
so large that only a narrow sutural lateral and apical margin and a transverse 
band before the middle remain reddish yellow. Beneath black, with the ante- 
pectus, and margins of the abdominal segments testaccous. Feet black; knees 
obsoletely rufous. 
The outer joints of the antenne of the male are dark colored, though not 
black as in the female. 
Cuierus Geoffr. 
C. Spinola, niger, pilosus, elytris convexiusculis, rugose punctulatis, coc- 
cineis macula humerali fasciaque ad trientem secundum nigris, abdomine san- 
guineo. Long -38—:52. 
Several specimens from the Mexican Boundary. Body black, hairy. Head 
finely but not densely punctured, first joint of antennae red beneath. Thorax 
wider than the head, punctulate, moderately convex, broadly and deeply im- 
pressed anteriorly. Elytra more than one half wider than the head, moderately 
convex, densely rugosely punctulate, pubescent with fine yellow hairs, with a 
