174 AMERICAN COLEOPTERA 



Female. — Front tibise and tarsi unmodified. 

 Length 1.6-1.9 ram. 



Hab. — A widely diffused species, of which I have seen specimens 

 from New Hampshire; Massachusetts; North Carolina; Iowa (Iowa 

 City); Michigan (Grand Ledge); Utah (Utah Lake); Nevada 

 (Reno); California (Lake Tahoe). 



The form of the elytra! apices otters the readiest means of recog- 

 nizing this species; it is, however, decidedly larger than distin- 

 guenda — its closest ally— as is obvious when series are compared, 

 the eyes are smaller and more widely separated, the middle coxae 

 are less distant, the color is usually paler, and the pubescence longer 

 and more bristling. 



]?I. insularis sp. iiov. — This name is proposed for a form occurring on the 

 Island of San Clemente (California), and differing from disiinguenda in the rela- 

 tively very small eyes and correspondingly long tempora. The latter are nearly 

 one-third as long as the eye, or sensibly twice as long as in disiinguenda : while the 

 front is twice as wide as the longest diameter of the eye. While this may be only 

 an extreme variation of distinguenda, the fact that I have seen nothing nearly 

 approaching it in the character mentioned, has led me — though with some mis- 

 givings— to give it specific standing. The pubescence is shorter, and the elytral 

 punctures coarser than in the average distinguenda, but specimens of the latter 

 species have been seen that were, not materially different in these respects. 



Hab. — San Clemente Id. — Coast of So. California. 



If I. <lisliiigiieii«lit Com.— Color varying from flavo- to fuscotestaceous, and 



either uniform throughout or with the elytra darker. Very much like villosa in 

 all respects, except the following: The size is usually smaller: the eyes very 

 large and separated on the front by much less than twice their longest diameter: 

 the tempora are shorter; the eighth joint of antenna- is a little shorter and in- 

 clined to be snbglobular; the prothorax is generally a little less closely punctate; 

 the elytra not sinuate or serrulate at apex, the sutural angle not prolonged, but 

 nearly right and narrowly rounded ; middle coxae separated by much more than 

 half their own widths. Sexual characters are as in villosa. (PI. V, figs. 62. 63 

 and 64). Length 1.1-1.8 mm. 



Hab. — This cosmopolitan species occurs in every portion of our 

 territory, and is nearly everywhere common. 



The variations in size, color, sculpture and vestiture are quite 

 considerable and have resulted in much synonymy. I have felt it 

 necessary to add to the list of synonyms given by Belon in his 

 recent catalogue, helvola, inculta and inermis of Motschulsky, and 

 rufula Lee. While it can never be quite certain, without actual 

 examination of types, that we have correctly assigned Motschulsky's 

 species, the probabilities are great that such is the case in the pres- 

 ent instance. 



