H. C. FALL. 63 



by its notably stouter form. The lobes of the third tarsal 

 joint are not as narrow as in yievadiais, and there is no ap- 

 preciable tooth on the front thighs. 



The following table though not quite as satisfactory in 

 every respect as I could wish, will help to identify the spe- 

 cies of Epimechus thus far described. 



Table of Epimechus. 



Antennal funicle 7-jointed. 



Pubescent species, femora unarmed mimicus. 



Squamose species. 



Vestiture not very dense, white. 

 Prothorax trivittate or non-vittate. 



Size small, 1.5 mm., legs and antennae black or very nearly so. 



iiainiliis. 

 Size larger, 2 mm. 



Elytra vpith ill-defined lateral subdenuded patch, scales 

 scarcely condensed on the fourth and sixth intervals, 



legs black ciirvipcs. 



Elytra without trace of lateral subdenuded area, scales dis- 

 tinctly condensed on fourth and sixth intervals, legs pale. 



niodicus. 



Prothorax univittate soriculus. 



Vestiture dense, white and yellowish-brown aemulii.s. 



Antennal funicle 6-jointed. 

 Vestiture not very dense. 



Scales shorter and broader, intermixed with short pubescence, 

 front with a long linear impression between the eyes. 



adspersus. 

 Scales longer and larger without evident pubescence, front not 



sulcate stragulus. 



Vestiture dense. 



Hind tibiae straight in the c?. 

 Scales yellowish-gray, more or less mixed with pale brown or 

 purplish-brown . 

 Form rather stout, lobes of third tarsal joint normal. 



mobilis. 

 Form distinctly more elongate, lobes of third tarsal joint un- 

 usually narrow nevarticiis. 



Scales uniformly white, body narrow elongate gracilis. 



Hind tibiae curved in c? . 



Scales white throughout, dense and generally overlapping. 



oanoides. 



Scales dull yellow, nearly uniform in color, close set, but not as 



a rule overlapping areuicolor. 



TRANS. AM. ENT. SOC, XXXIX. 



