

FAMILY VI. 



ee. Larger, 3.5-3.S min. ; sides of thorax not sinuate. 



485. EXCAVATUS. 



cc. Intervals of elytra wider than stride; thorax without granules be- 



tween the punctures. 486. SUBCUPBEUS. 



6ft. Thorax without distinct fovere, its surface densely and finely granu- 



late. 487. GKANULATUS. 



H. seal rat us Muls. is recorded from New York to Iowa and 

 southward. 



483 (1562). 



HYDROCHUS SQUAMIFER Lee., Proc. Phil. Acad. Nat. Sci., VII, 

 1S55, 359. 



Elongate. Above grayish-bronzed or cupreous; head 

 and thorax tinged with greenish and darker than elytra ; 

 beneath dull reddish-brown, legs and palpi paler. Thorax 

 scarcely wider than long, sides sinuate; disk coarsely and 

 rather closely punctate, the intervals with flattened gran- 

 ules. Elytra deeply striate ; third interval a little higher 

 than second, fourth elevated from the middle half way 

 to apex, fifth elevated like the third but interrupted op- 

 posite the elevation of fourth. Length 3.7 mm. (Fig. 

 125.) 



Fig. 125. X 9. 

 (Original.) 



Lake and Marion counties ; scarce. May 25- Au- 

 gust 20. 



484 (1558). HYDKOCHUS IN.^QUALIS Lee., Proc. Phil. Acad. Nat. Sci., 1855, 



359. 



Elongate. Above dark reddish-brown, slightly bronzed; legs paler. 

 Thorax roughly and densely punctate, slightly longer than wide; dorsal 

 fovese very distinct. Elytra deeply striate, the fifth, seventh and ninth 

 intervals elevated and interrupted behind the middle, giving the appear- 

 ance of a transverse impression; fourth elevation opposite break in third. 

 Length 3 mm. 



Lawrence County, from pond near University farm; scarce. 

 7. A species of southern range. 



iir.r,!)). IlYDHOCiifS EXCAVATUS Lee., Prcir. Phil. Acad. Nat. Sci., VII, 

 1855, 360. 



Elongate. Blackish-bronzed; legs reddish-brown. Thorax about as 

 wide as long, the fovese distinct, the basal ones smaller. Elytral intervals 

 narrow, the fourth, fifth and seventh elevated, the fifth interrupted. Length 

 3.5-3.9 mm. 



Lake and Laporte counties ; scarce. May 25. 



l^f. i ir.CiO). HYDROCHUS SUBCUPREUS Rand., Bost. Jouru. Nat. Hist., II. 

 1838, 40. 



Elongate, rather slender. Brown, with a distinct brassy tinge; beneath 

 piceous; legs reddish-brown, knees darker. Thorax subquadrate, not wider 

 than long; disk with fovese less distinct than in excavatus; coarsely, deeply, 

 not densely punctate. Elytra with intervals cunvex, distinctly wider than 



