252 AMERICAN COLKOPTERA. 



Bradycinetus serratus vav. peninsnlaris uew. var. 



Agrees in every respect witli serratus, except that the scutelluni 

 and elytra are finely alutaceous and not shining, the striae are ex- 

 tremely fine and very finely punctate ; the elytra seems to be also 

 not as convex and more parallel than in serratus and slightly 

 broader behind. These differences give the specimens a distinct 

 aspect and are constant in the large number of specimens seen 

 which were all collected by Mr. Mr. Gustav Beyer in Santa Rosa 

 and San Felipe in Lower California. 



Bradycinetns serratus Lee. 



This is the commonest of our species and well known ; it occurs in 

 Texas and Arizona. 



The intermediate intercoxal process between the coxae is about 

 one-half as wide as the process in its widest part behind the coxae 

 and is not contracted in front, it becomes gradually wider behind. 



Bradyciiietiis ferrngiiiens Bcauv. 



This and fossatus Hald. are our largest species and seem to be 

 quite rare in collections. The intermediate intercoxal process in 

 ferrugineus is comparatively longer and slightly narrower as in ser- 

 ratus Lee. Viewing the middle and hind tibiae from the outer side, 

 there will be seen in the former at middle of apex and in the latter 

 at the interior angle a tooth-like prolongation ; Dr. Horn called this 

 emarginate, which expression I have used in the synoptic table. 

 This emargination we find in ferrugineus Beauv., as well as in 

 fossatus Hald., while all our other species of this genus and Bolbo- 

 ceras have the outer side of middle and hind tibiae at apex obliquely 

 truncate. In ferrugineus the sides of thorax are not serrate, at 

 most slightly irregular. It is recorded from the Southern States, 

 my specimen and others I have seen are from Florida. 



Bradycinetus fossatus Hald. 



Unfortunately I have no specimens of this species, which occurs 

 in Texas and I believe I have also seen a female of this species from 

 Missouri. It is of the same .size as ferrugineus Beauv., but more 

 shining and has the sides of thorax serrate. Dr. Horn describes the 

 thorax of the male as being suddenly elevated in front, the anterior 

 angles of the elevation acute and project outward, on each side a 

 deep groove or fossa limited exteriorly by an obtuse tooth-like ele- 



