AMERICAN PHILOSOPHICAL SOCIETY. 603 



14. E. SEMiviTTATUS nob., (Ibid.);— In the only specimen 

 at present in my cabinet, is a transverse indented line in the 

 middle of the lateral margin ; the thoracic dorsal line is polished 

 behind the middle. 



15. E. OBESUS nob. (Ibid.). — The clypeus is not prominent, 

 and the thoracic spines are not carinated ; the elytra, in one 

 specimen, are acuminated at tip : the nails are very robust on the 

 basal half, which terminates at the middle in a prominent tooth, 

 separated by a deep fissure. 



16. E. viRiDANUS nob. (Ann. Lye. Nat. Hist.). — The thorax 

 has two orbicular indentations before the middle. 



17. E. MANCUS nob. (Journ. A. N. S.). — Second joint of the 

 antennaa rather longer than the third. Clypeus not prominent. 



Inhabits New Hampshire, Harris.* [169] 



18. E. CONVEXUS nob. (Journ. A. N. S.) — With a good mag- 

 nifier the interstitial lines appear to have minute punctures ; the 

 third and fourth, and fifth and sixth striae of the elytra are con- 

 fluent before the tip. 



*■ [Among Mr. Say's suppressed descriptions is the following, which 

 may be of use in determining the species, and is therefore worth pre- 

 serving.] 



18. E. LinTEPS. — Black ; elytra whitish, tip and sutural edge Mack. 



Inhabits the United States. 



Body black : clypeus not prominent, rounded at tip : antennae robust, 

 deeply serrate ; second joint transverse, nearly orbicular, very small : 

 thorax gradually narrowed before by a rectilinear edge almost to the 

 anterior margin ; an impressed line at base ; posterior angles carinate, 

 rather acute : scutel convex, acute behind : elytra whitish, with striae 

 of dilated punctures ; tip black ; a narrow, black, sutural margin, and 

 exterior edge, behind the middle, black : feet piceous : tarsi, fourth 

 joint hardly shorter than the third. 



Can this be the mixtus Herbst ? It is the deustus of Melsheimer's Cata- 

 logue ? a name preoccupied by Thumberg for a species of Ceylon. 



[This description Mr. Say orignally arranged immediately after that of 

 E. mancus, in the papers printed at New Harmony, during the summer 

 of 1834, but omitted it with the following remark:] 



Le Conte says that it is the lugubris Beauv. 



[Afterwards described by Germar as Ampedus lugubris.— Lm.} 



1836.] 



