222 H. C. FALL. 



Last ventral segment with deep marginal impressed line or groove which is. nar- 

 rowly interrupted at middle. Legs densely finely punctured on their exposed 

 surfaces. Length 2-3 mm. 



Specimens of this widely dispersed and not uncommon species 

 have been seen from Massachusetts, New Jersey, Pennsylvania, 

 District of Columbia, Florida (Lake Mary), Ohio, Kentucky, Illi- 

 nois, Missouri, Kansas (Onaga), Texas (Columbia and San Diego) 

 and Arizona. 



The Texas specimens and more especially those from Arizona are 

 obviously more strongly and closely punctured than the typical east- 

 ern specimens, and I at first thought they might be separated as a 

 distinct species, but further experience proves that it will be diffi- 

 cult to draw the line between them. 



7. E. canonicus n. sp. — Form of nitidus, hut slightly less longitudinally 

 couvex. Color dark castaneous, surface polished and glabrous. Head not cari- 

 nate, punctuation close and moderately coarse. Pronotum densely punctate at 

 sides, the punctures becoming somewhat finer and noticeably sparser toward the 

 middle, where they are separated by about their own diameters. Elytral punc- 

 tures separated from one to two times their own diameters on the disk, a little 

 closer laterally. Punctuation beneath not so close as in nitidus, with scarcely 

 noticeable intermixture of finer punctures, but otherwise very similar to that 

 species. Metasternal lobe fully as long as wide, the anterior margin as defined 

 by the raised marginal line, feebly sinuate truncate. Length 3.2 mm. 



Hub. — Santa Rosa, Lower California (Beyer). 



Tliis species is slightly larger than the largest specimen of nitidus 

 before me, but is otherwise very much like in superficial appearance 

 the more strongly punctured western representatives of that species. 

 The non carinate vertex and unmodified fifth ventral segment, how- 

 ever, readily separate the present species from nitidus. The resem- 

 blance to similis is perhaps still greater but the form of the meta- 

 sternal lobe and the shorter metasternum, referred to under similis, 

 should separate them. 



8. E. similis n. sp. 



Very similar to canonicus in form, color and sculpture ; and differ, 

 ing in no noteworthy respects so far as I can see, except the follow- 

 ing : The metasternal lobe is obviously transverse, its anterior mar- 

 gin distinctly though not strongly emarginate in circular arc ; the 

 metasternum at side obviously longer than the combined length of 

 the third and fourth ventral segments, while in canonicus it is not 

 sensibly longer than these segments. Length 3.25-4 mm. 



