AMERICAN COLEOPTERA. 97 



56. M. scalaris Hel. Pr. A.-. Nat. So. Phila. xvi, 105. (PI. III. fig. If!). 

 The figure (PI. Ill, tig. 15), shows the ridges of tibia and tarsi 



peculiar to this and the three following species ; the present species is 

 unknown to me ; hut seems to be sufficiently distinct from the other 

 species of this group by the lack of pubescent hands on the elytra. 

 The figure was made up from the description, and its accuracy is there- 

 fore not vouched for. 



57. M. pubescens Fabr. Syst. El. ii, 123; hebraica Lee. Pr. Ac. Nat. Sc. 

 Phila. xiv, 51 ; leporina Lee. id. (PI. Ill, fig. 17). 



A somewhat variable species and I believe I have series sufficient 

 to demonstrate the identity of the above referred species. I have seen 

 in the specimens examined variations all the way from the dark typical 

 pubescens form to the bright leporina form, while the hebraica form 

 according to Dr. LeConte's description varies in the color of the thorax to 

 a uniform black. There is a difference in the arrangement of the pubes- 

 cent bands, but I have seen all the forms in the specimens which were 

 undoubtedly pubescens. It is rather common in the vicinity of N. Y. 



58. M. bihamata Mels. Pr. Ac. N. Sc. Ph. ii, 313, {Mordella). (PI. Ill, fig. 1 8). 

 Distinct from the preceding by the more slender form, the somewhat 



differently shaped bands and the reddish margin of thorax. I have 

 seen but one specimen, and cannot therefore judge well of the exact 

 relationship it bears to pubescens. 



59. M. lit ii rata Mels. Pr. Ac. N. Sc. Ph. ii, 314, (Mordella). (PI. Ill, fig. 19). 

 Distinct from the others in this section by the pale color. It is 



rare, and I myself have never found the insect. I have seen but 

 a few specimens of the species, and did not find any great variation 

 amongst them. 



60. M. fuscata Mels. Pr. Ac. N. Sc. Ph. ii, 313, (Mordella). (PI. Ill, rig. 20). 

 The figure shows the ridges of tibia and tarsi. The color is uniform 



and an examination of the ridges is necessary to properly place it. It is 

 not uncommon around New r York. 



61. M. pityptera Lee. Pr. Ac. flat. Sc. Phila. xiv, 51. (PI. Ill, fig. 22). 

 The combination of ridges of tibia and tarsi is shown on PI. Ill, 



fig. 21. The only specimens I have seen are from Texas, and they vary 

 both in size and in color ; some are nearly entirely rufous, hut in full 

 colored specimens the rufous humeral spot is always very distinct. 



62. M. ruf'escens sp. nov. (PI. Ill, fig. 23). 



The figure shows the tibial and tarsal ridges peculiar to this and the 

 two following species. The color is uniform and affords no indication to 

 the species. One specimen only. Nevada ; Coll. Dr. Horn. 



TliANS. AMER. ENT. SOC. X. (25) . III. V, 1882. 



