XORTH AMERICAN COLEOPTERA. 27 



Thorax scarcely wider than loii";, obliquely narrowing to base, which is nar- 

 rower than the apex. flebilis Lee 



Thorax very obviously wider than lonu;. 



Median line of thorax distinctly impressed, the base a little narrower than 



the apex fortis i/ojH. 



Median line scarcely visil)ly impressed, the base not narrower than apex. 



Doliriii EhJers. 



The first two species are from California, /or//.'^ from Tennessee, 

 Dohrni from Florida. They are extremely rare in collections, their 

 small size and mode of life rendering them difficult to collect. 



.«:GIAL,1TES Mann. 



jNIentum twice as wide as long, sides irregularly converging to the 

 front, apex truncate. 



LiGULA short, transverse, feebly emarginate in front, the angles 

 rounded, S])arsely ciliate in front with two longer seta? each side. 



Maxill.e with two distinct lobes, the inner narrow, parallel, apex 

 obtuse, with a few spines and sparsely ciliate, outer lobe broader, but 

 obtuse, with short spiniform hairs at the inner angle. 



Mandibles rather stout, apex emarginate, inner edge deeply 

 notched within the apex. 



Labial palpi short, three-jointed, arising behind the nientum on 

 each side of the base of the ligula, last joint oval, rather longer than 

 either of the others. 



Maxillary palpi four-jointed, first very short, second clavate 

 third shorter, fourth fusiform, truncate, longer than either of the 

 others. 



The above details are intended to supjjlj' the deficiencies existing 

 in the descriptions of the mouth parts of jEgialites. The accompa- 

 nying figures (PI. iii, fig. 23, a, b, c, d) will give a sufficiently accurate 

 idea of the form of the mouth parts. 



OTHlVIfJS Lee. 



This name is introduced to call attention to the figures of the 

 mouth parts, and to correct an error in the "Classification." The 

 ligula does not have distinct paraglossse. The first joint of the labial 

 palpi is ciliate with moderately long fine hairs within, which are 

 curved at their apices, giving the appearance of paraglossse when 

 the dissection is mounted in Canada balsam. 



