N0KTI1 OF MEXICO. 



397 



II. disoretus, Le'c, New Species, p. 184. 



This species is unknown to me in nature, and is placed near cisteloides in consequence 

 of its comparison by Dr. Leconte with that speeics. 

 Length .44 inch. 

 Texas. Cabinet of Mr. II. Ulke. 



II. suleipennis, Lee., New Species, p. I :!:!. * 



A very distinct species in this section, by its deeply sulcate elytra. The interstices 

 are convex, smooth and shining with metallic reflection. The antenna) are slender, the 

 joints nearly equal, the last being as long as the preceding. The propleurrc arc punctured 

 and wrinkled. The humeri of the elytra are more distinct than in any of our apterous 

 species. 



Length .30 inch. 



Mount Yona, Habersham Co., Georgia. 



II. attenuatus, Leo., (Amphidora) Ann. Lye. V, 187; Class. Col. N. A., p. 240 (Stenotriehus). 



The type of this species is a badly mutilated specimen found by Dr. Leconte in the 

 desert region around Vallecito, California. From the character of the region and the ap- 

 pearance of the specimen, it must have been dead some years, and exposed to the intense 

 heat of the desert region, lias undoubtedly lost to a certain extent its original outline. 

 Several specimens are in my cabinet, from neighboring regions, agreeing in most respects 

 with the type;, but having the thorax rather less convex and slightly broader. The speci- 

 mens, however, vary among themselves to a certain extent. 



Thorax longer than broad, truncate at apex and base, sides feebly rounded, margin 

 obtuse. Propleurse and entire under surface densely and coarsely punctured. Elytra 

 elongate oval, almost sub-cylindrical, humeri rounded; surface with stria: of coarse punc- 

 tures, and interstices more finely punctured. Antennae with the outer joints feebly com- 

 pressed, not shorter. 



Length .'2(i-.3(> inch. 



Occurs at Vallecito, Owens' Valley, and at Camp Grant, Arizona. 



H. farotus, Lee., Proc. Acad. 185S, p. 74. 



Very distinct from all our apterous species, by its broadly oval form, apex of thorax 

 deeply cmarginate, and anterior angles prominent, and by its deeply striate elytra. 

 Thorax twice as broad as long, sides feebly rounded, and wider at base; surface densely 

 but not coarsely punctured. Propleurre and entire under surface coarsely but not sparsely 

 punctured. Antennae gradually wider to apex, outer joints not shorter. Color black, 

 moderately shining. 



Length .20-3:3 inch. 



r 1 1 



1 exas. 



AMERI. PH1L0S0. SOC— VOL. XIV.- 



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