330 - [June, 



Meloe cancellatus 'Br. &f Er., (1. c. 141, tab. 8, fijr. 9,) belongs to the fir>t 

 division of this genus, but is distinguished by having the interstices of the large 

 punctures of the elytra red. 



a. Elytra divergentia, abdonnine multo breviora. 



1. C. vittat u s, niger, capite thoraceque opacis vage grosse punctatis, illo 

 basi fere truncato, hoc subquadrato, subtiliter canaliculate, basi valde emargi- 

 nato, elytris brevibus, inflatis, obtusis cribrato-punctatis vitta angxista rubra 

 utrinque abbreviata ; abdomine amplissinao laevigato. Long .5-'7. 



New Mexico. Dr. Wislizenus. 



b. Elytra amplissima, connata. 



2. C. W i s I i z e n i, supra cyanescens, nitidus, capite thoraceque grosse punc- 

 tatis, illo postice rotundato, hoc pentagono, canaliculato, angulis lateialibus 

 acutis, elytris splendide cyaneis sphericis, foveis prolundis confertis cancellatis. 

 Long. '65. 



Le Conte, Ann. Lye. 5, 158. 



New Mexico, Dr. Wislizenus. The body beneath is black ; the legs are steel 

 blue. 



3. C. a r mat us, obscure reneo-olivaceus, opacus, capite punctato, postice 

 canaliculato, occipite conico, thorace punctato, utrinque spina acuta armato, 

 elytris antrorsurn angustatis, dorso antice late depressis, spatiis impressis irre- 

 gularibus reticulatis. Long. -4 -GS. 



Le Conte, Ann. Lye. 5, 158. 



On the desert near the Colorado river of California, usually on Larrea mexi- 

 cana. 1 can find no sexual characters. The body beneath is black, the legs are 

 steel-blue. 



Henous Ilald, 



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. Tlie antenna are filiform, or rather setaceous, the 2d joint short, the 3d 

 joint as long as the two following united ; the 3d to the 6th slightly 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 

 tibias 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. confer t us, 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 scabro-punctatis. Long. '37 75. 



Meloe conferta Say, Jour. Ac. Nat. Sc. 3, 281. 



Henous techanus Haldeman, Stansbury's Expedition to Great Salt Lake, 377, 

 pL 9, fig. 1214. 



Missouri Territory and Texas, not rare. The thorax is finely canaliculate, 

 but sometimes this character is scarcely apparent. 



Lytta Fair. 

 Ca?ithari,s\\ 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. (iDej.) and Tegrodera J><?c., are unnecessary. 'J'he 

 only characters of the two first consist in the form of the antenna?, and in look- 

 ing over a number of species, one will readily perceive that there is a legular 

 transilion from one group to another ; other forms of antennae (such as appear 



