94 J. B. SMITH. 



31. M. andrete Lee. Pr. Ac. Nat. Sc. Phila. xiv, 50. (PI. II, fig. 38). 



This and the four following species form a very compact group, differing 

 only in minor points of coloration. I am certain that there are two species 

 more than there is any necessity for, described ; but I have not unfortu- : 

 nately, a series large enough to prove it. None of the species are common, 

 and I have not seen any large numbers of them in any collection. 



32. M. gram in ica Lee. Pr. Ae. Nat. Sc. Phila. xiv, 50. (PI. II, fig. 39). 

 Differs from the foregoing in color of body, and probably sufficiently 



distinct from it. 



33. M. aucilla Lee. Pr. Ac. Nat. Sc. Phila. xiv, 50. (PI. Ill, fig. 1). 



This species I believe will ultimately prove a variety of andrex. 

 The only difference between the two is that ancilla is ferruginous, 

 where the other species is yellow. 



34. M. varians Lee. Pr. Ac. Nat. Sc. Phila. xiv, 50. (PI. Ill, fig. 2). 



This I believe is a good species ; it seems to present no variation, and 

 is not uncommon in the Orange Mts. 



35. M. ustulata Lee. Pr. Ac. Nat. Sc. Phila. xiv, 50. (PI. Ill, fig. 3). 



This will I believe prove only a variety of grammka , the difference 

 as shown in the figures is exceedingly slim, and that shown in the 

 synopsis is not much greater. 



36. Itt. semiusta Lee. Pr. Ac. Nat. Sc. Phila. xiv, 50. (PI. Ill, fig. 4). 



This seems distinct from all those in the preceding group. I have 

 seen but few specimens and have noted no variation. 



37. M. impatiens Lee. Pr. Ac. Nat. Sc. Phila. xiv, 50, 



Rather rare in my experience, and in the few specimens I have 

 examined no great variations have been discovered. 



38. M. ferrnginoides sp. nov. 



Distinct from any of the others of this group by the contrasted elytra 

 and body. One specimen only, Georgia ; Coll. Dr. Horn. 



39. M. nigricans Mels. Pr. Ac. Nat. Sc. Phila. ii, 313, {Mordella) ; nigerrima 

 Hel. id. xvii, 96. 



The species varies somewhat in size and in the depth of the black 

 color, but not otherwise ; exactly how Dr. Helmuth pretended to sepa- 

 rate his species from nigricans I am at a loss to imagine, his description 

 applies in all respects to this species. 



40. M. guttulata Hel. Pr. Ac. Nat. Sc. Phila. xvi, 105, (from the description 

 only). (PI.'III, fig. 7). 



I have not seen this insect in nature ; it seems to take the place in 

 this group that pustulata does in another, and may be a specimen of 

 that species incorrectly referred. 



