1(2 J. IJ. SMITH. 



17. M. pallipes sp. nov. (PI. II, fig. 26). 



All the legs pale testaceous — an unusual character in the genus — 

 this point and the darker margins of elytra render the species readily 

 recognizable. The rudiment of the third ridge is very short, having 

 but two or three spinules but the pale color of the legs renders it 

 easily noted, as the spinules are black. One specimen, Ithaca, N. Y. ; 

 my collection. 



18. M. fulvicollis Mels. Pr. Ac. Nat. Sc. Phila. ii, 315, (Mordella). (PI. II, 

 fig. 27). 



Easily known from the others in this group by the humeral spot on 

 elytra and the pale thorax. It appeal's to be rare and I have seen only 

 a single specimen. 



19. M. ornata Mels. Pr. Ac. Nat. Se. Phila. ii, 315, {Mordella). (PI. II, 

 fig. 30). 



The combination of tibial and tarsal ridges peculiar to this and 

 the seven following species is shown PI. II, fig. 29. I have seen but 

 a single specimen of this insect, and consecpiently have no remarks to- 

 offer concerning it. 



20. M. militaris Lee. Pr. Ac. Nat. Sc. Phila. xiv, 49. (PI. II, fig. 28). 



This will probably turn out to be only a variety of the following 

 when more of the specimens from other parts of the country have been 

 procured. I have seen only very few specimens and they agree pretty 

 closely with the description ; a variety however is found with the thorax 

 mi ire or less rufous, never having the color distinctly marked, but still 

 differing noticably from the type form. 



21. M. scapularis Say. Pr. Ac. Nat. Sc. Phila. iii, 277, (Mordella). (PI. II, 

 fig. 31). 



More common than the preceding but by no means plentiful at any 

 time. It is entirely black except the orange humeral spot which leads 

 to its recognition at once. 



22. M. COUiata Lee. Pr. Ac. 1858, p. 75, (Mordella) ; picicomis Lee. Pr. Ac. 

 Nat. Sc. Phila. xiv, 49 ; cervicalis Lee. id. ; auricoma Hel. id. xvii, 96. 



From the material I have on hand I consider these four forms 

 identical ; picicomis and cervicalis certainly are, for I have series lead- 

 in" from one form into the other ; comata differs in the entirely red 

 head and the paler pubescence ; but the color of the pubescence in 

 this genus is not a safe guide, nor is the extent of the red color on 

 the head; auricoma does not differ in any marked respect from either 

 of the forms. 



