AMERICAN COLEOPTERA. 43 



short in penicillatus and mixtus. The elytral sculpture in the present 

 species is also peculiar, the punctures are all in and anterior to the 

 white band, while in all the other species the elytra are punctured 

 from base to tip. 



Here also is the proper occasion to call attention to a discrepancy 

 existing between the descriptions of Leconte and Lacordaire. 



The former says (Classification p. 330), middle coxas open ; on 

 p. 340, middle coxae angulate but not open ; also middle tibiae with 

 an external sinus. 



Lacordaire (Genera ix, pp. 416 and 650), middle coxae closed; on 

 pp. 417 and 650, middle tibiae without sinus. This latter error ? is 

 noticed by Leconte. In all our species the middle coxal cavities are 

 as open as in Eupogoniux and the middle tibias are in no way different 

 from those of species pronounced Hoplosia and Estola but sufficiently 

 different from Uupogonlus. 



ESTOIiA Fairm. 

 E. ? SOrdida {Pogonocherus ?) Lee, New Species, p. 237. 



The middle tibiae have a distinct sinus on the outer side. The eyes 

 are very coarsely granulated and the lower lobe broader than long, and 

 the emargination is so deep that the isthmus between the two lobes is 

 not wider than one or two facets. 



The determination of this species as Estola is due to the suggestion 

 of Mr. H. W. Bates, but I have considerable doubt of its correctness 

 from the following characters : Scape of antennae rather stout, eyes 

 very coarsely granulated, the lower lobe broader than long, meso- 

 sternum declivous. 



Those of Estola are : Scape of antennas obcouical, eyes subfinely 

 granulated, the lower lobe elongated, mesosteruum truncate in front, 

 horizontal posteriorly, (Lacordaire). 



These characters seem to require a provisional modification of the 

 table of the Pogonocherini (Classification p. 340), as follows : 



Middle tibiae with an external sinus,- thighs clavate; vertex concave, antenual 

 tubercles prominent. 

 Eyes moderately granulated. Scape of anteunse equally punctured. 



Lower lobe of eyes elongate HOPLOSIA. 



Lower lobe of eyes as wide as long POGONOCHERL 



Eyes very coarsely granulated. Scape with large punctures intermixed. 



Lower lobe of eyes broader than long ? ESTOL^E. 



Middle tibise without external sinus; thighs not clavate; vertex flat or convex, 

 antennal tubercles not prominent. 

 Eyes coarsely granulated; lower lobe as broad as long. Scape of antennse 

 equally punctured EUPOGONIL 



