12 THE CANADIAN ENTOMOLOGIST 



Paratypes from Paw Paw Lake, Michigan, August 18, and Evans- 

 ton, Illinois, July 2; the latter in collection of A. B. Wolcott. 



Nearest allied to M. unicolor, but differs in size, being much 

 longer, more robust and having two ridges on the third joint of 

 hind tarsus. It should follow AI. schauppii. 



Mordellistena pulchra, sp. nov. 



Hind tibia with three oblique ridges, the upper more oM'que; 

 first joint of hind tarsus with four, second with three oblique ridges. 



Black; head ferruginous, with a dark cloud on vertex; mouth- 

 parts dark; thorax rufous, with a narrow margin, the base, apical 

 angles and a median line black; antennae dark brown; first and 

 middle legs with femora black, the tibia and tarsi ferruginous; hind 

 legs ferruginous, the tarsal joints black at apex. Elytra black, 

 with fine cinereous pubescence; a wide rufous vitta from base nearly 

 to apex. Beneath black, with sides of hind coxal plates and basal 

 joints of abdomen ferruginous; anal style short and slender, apical 

 two-thirds black. Length 4 mm. 



One specimen from Bowmanville, Illinois, August 18. 



Judging from the original descriptions, this species has the 

 colour and size of M. attenimta Say or vittigera Lee, but the tibial 

 and tarsal ridges are entirely different. It should follow M. 

 (Bqualis. 



Mordellistena wolcotti, sp. nov. 



Hind tibia with three rather short, oblique ridges, which ex- 

 tend only one-third across the outer face of the tibia, and two small 

 rudimentary ridges; first joint of hind tarsus with six ridges, three 

 small or rudimentary; second joint with two ridges. 



Form robust; head and thorax black, coarsely covered with 

 silky, yellowish pubescence; base of antennae and mouth-parts 

 ferruginous; legs fuscous. Elytra rufous, slightly darker towards 

 apex, with the base, suture, an oblique vitta from humerus to the 

 middle, and a slightly oblique band behind the middle and apex, 

 with silky, golden-yellow pubescence; beneath black, with yellowish 

 pubescence; anal style long and slender, fuscous. Length 4.5 mm. 



One specimen from McGregor, Iowa, July 16. Collected by 

 A. B. Wolcott, in whose collection the type is placed. 



