330 [JUNE, 
Meloe cancellatus Br. § Er., (J. c. 141, tab. 8, fig. 9,) belongs to the first 
division of this genus, but is distinguished by having the interstices of the large 
punctures of the elytra red. 
a. Elytra divergentia, abdomine multo breviora. 
1. C. vittatus, niger, capite thoraceque opacis vage grosse punctatis, illo 
basi fere truncato, hoc subquadrato, subtiliter canaliculato, basi valde emargi- 
nato, elytris brevibus, inflatis, obtusis cribrato-punctatis vitta angusta rubra 
utrinque abbreviata ; abdomine amplissimo levigato. Long .5-:7. 
New Mexico. Dr. Wislizenus. 
b. Elytra amplissima, connata. 
2.C. Wislizeni, supra cyanescens, nitidus, capite thoraceque grosse punc- 
tatis, illo postice rotundato, hoc pentagono, canaliculato, angulis lateralibus 
acutis, elytris splendide cyaneis sphericis, foveis profundis confertis cancellatis. 
Long. :65. 
Le Conte, Ann. Lyc. 5, 158. 
New Mexico, Dr. Wislizenus. The body beneath is black; the legs are steel 
blue. 
3. C. armatus, obscure eneo-olivaceus, opacus, capite punctato, postice 
canaliculato, occipite conico, thorace punctato, utrinque spina acuta armato, 
elytris antrorsum angustatis, dorso antice late depressis, spatiis impressis irre- 
gularibus reticulatis. Long. -4—:65. 
Le Conte, Ann. Lyc. 5, 158. 
On the desert near the Colorado river of California, usually on Larrea mexi- 
cana. | can find no sexual characters. The body beneath is black, the legs are 
steel-blue. 
Henovus Hald. 
Though the characters of this genus approach very closely to Meloe, yet there 
is again a difference in the elytra, which are connate, and not at all imbricate. 
The form of the body is nearly that of some species of Lytta; the elytra are oblong- 
elongate, convex, a little shorter than the abdomen and obtusely obliquely truncate 
at tip. The antenne are filiform, or rather setaceous, the 2d joint short, the 3d 
joint as long as the two following united; the 3d to the 6th slight!y dilated in the 
male; the labrum is slightly emarginate; the palpi, as in Lytta, moderately long 
and slightly dilated. The legs are slender, one of the spurs of the posterior 
tibiz is concave and obtuse; the ungues are cleft to the base, with the parts 
nearly equal. When the abdomen of the female is distended, the upper segments 
are separated from the central segments by a wide membraneous space. 
1. H. confertus, ater opacus, subtiliter dense nigro-pubescens, capite tho- 
raceque confertissime punctatis, hoc non angustiore, antice rotundato, basi 
emarginato, latitudine non breviore, elytris plus duplo latioribus confertissime 
subtilius seabro-punctatis. Long. -37—-+75. 
Meloe conferta Say, Jour. Ac. Nat. Sc. 3, 281. 
Henous techanus Haldeman, Stansbury’s Expeditlon to Great Salt Lake, 377, 
pl. 9, fig. 12—14. 
Missouri Territory and Texas, not rare. The thorax is finely canaliculate, 
but sometimes this character is scarcely apparent. 
Lytra Fabr. 
Cantharis|| Geof. 
After a very careful study of the numerous species of this genus inhabiting 
the United States, I have concluded that the groups separated under the names 
Pyrota Dej., Epicauta Redt. (1 Dej.) and Tegrodera Lec., are unnecessary. The 
only characters of the two first consist in the form of the antenna, and in Jook- 
ing over a number of species, one will readily perceive that there is a regular 
transition from one group to another; other forms of antennz (such as appear 
