238 Trans. Acad. Sci. of St. Louis. 



iiearctic in range, excepting the Pacific coast, the second being 

 apparently West Indian. The description of scutellaris 

 given above, is drawn from the published statements of Le- 

 Conte, as I have not examined the unique type. It 

 is evidently related closely to granulosa but apparently 

 has a narrower prothorax, although the expression 

 »* longer than wide " in the original description, as well as 

 the statement that the elytra are devoid of punctuation, is 

 probably erroneous. The elytral punctulation is quite dis- 

 tinct in granulosa, where the scutellar channel is well de- 

 veloped, but, in illustrisy is excessively fine and subin visible 

 throughout, even toward the scutellum, but the pronotum, 

 which is said to be "densely punctulate " m scutellaris , \s 

 almost smooth in illustris, contrasting very greatly with the 

 flattened and densely granulose slopes of the median sulcus 

 in granulosa. For these reasons I do not feel warranted in 

 identifying any one of the species before me as the scutellaris 

 of LeConte. 



Ijorinota n. gen. 



This genus, which is also one of the characteristic types of 

 nearctic North America, differs profoundly from the preceding 

 in its less robust form of body, normal mesosternum, rather 

 narrowly separated middle coxae, with the mesosternal process 

 projecting between them as a narrow and parallel-sided, free, 

 spatuliform process, separated from the short metasternal 

 projection by a deeply depressed and clearly defined short 

 isthmus, in its longer and more slender antennae, generally 

 more rounded base of the head and longer prothorax, which 

 is equally deeply sulcate but without the peculiar coarse 

 granulation of Chitalia, although the punctures frequently 

 become asperulate. The hypomera are well defined by a 

 beaded edge, but are longer and narrower than usual and 

 much more parallel-sided than in any of the succeeding 

 genera. The scutellum is carinate, roughly sculptured, with 

 its posterior part bent upward to the plane of the elytra and 

 its basal part covered by the broadly arched base of the pro- 

 notum as in Chitalia, though here the pronotal base is trun- 



