Coleopterological Notices, III. ^i1 



S. cyaiiescens Lee. — Proc. Ac. Phila., 1859, p. 78. — Elongate, the body, 

 legs and antennse tlironghout black, rather strongly shining. Head rather 

 coarsely, densely punctate. Prothorax but slightly wider than long, nearly as 

 in gracilis hut more finely, not so densely punctate, the punctures all narrowly 

 separated. El/jtra four times as long as the prothorax in the male, distinctly 

 shorter in the female, one-tliird wider than the latter, the humeri narrowly 

 rounded and broadly exposed; disk with feebly impressed series of rather 

 coarse impressed punctures, the intervals nearly flat in both sexes and 

 minutely, sparsely punctate, the punctures arranged in single series and more 

 distinct in the male. Legs and abdomen in both sexes nearly as in gracilis. 



Male. — Eyes rather large, separated by one-fourth more than their own 

 width ; antennffi two-thirds as long as the body, just visibly stouter toward 

 apex, the ninth joint much more than twice as long as wide and nearly parallel. 



Female. — Eyes separated by nearly twice their width ; antennre one-half as 

 long as the body, feebly incrassate toward apex, the ninth joint very feebly 

 obconical and nearly twice as long as wide. 



Length 8.0-9.0 mm. ; width 2.3-2.8 mm. 



Nevada; California (Siskiyou Co.). 



This species greatly resembles gracilis, but is more slender and 

 rather less convex, M'ith the legs entirely black, and the punctures 

 of the elytral striae much larger and more conspicuous. All the 

 specimens before me are deep black, but, as the name indicates, the 

 color may perhaps occasionally be of a bluish tinge. 



LOBOPODA Sol. 

 Allecula Say, Lee. 



The species of Lobopoda are, as a rule, above the average of the 

 family in point of size, and are sometimes surprisingly closely allied 

 among themselves. The form is generally more or less oblong-oval 

 and gradually pointed behind, and the punctures of the elytral series 

 are almost invariably finer or more or less linear toward apex, often 

 becoming completely obsolete. 



The tarsal lobes are especially highly developed, and generally 

 differ sexually to a marked degree, the lobes of the penultimate joint 

 being, however, usually free from sexual modification. Attempts 

 have been made to subdivide the genus upon the basis of variation 

 in the number and disposition of the lobed joints in the male and 

 female, but, as in most characters of this nature, there are so many 

 intergrading forms, that these efforts have only met with partial 

 success. 



These tarsal modifications are useful, however, in tabulating the 



