252 



F\-\rii,^' VI. 



fivi)i;()i'n[r,iT).T;. 



cc. Liiriior. :j..j-;j.8 luiii. ; sides ol" tliornx wA sinuate. 



485. EXCAVATUS. 



cc. Intervals of elj'tra wider tlian stria^; thorax witbont granules l)e- 

 tween the punctures. 486. subcupkeis. 



bh. Thorax without distinct fove;c, its surface densely and finely granu- 

 late. 487. GRANULATUS. 



//. scal))'(ifi(s ^Fiils. is recorded from Nmv York to Iowa and 

 southward. 



483 (15G2). 



Fig. 125. X 9 

 (Original.) 



IIydrochus SQl'A^[IFER Lee, I'roc. I'hil. Acad. Nat. Sci., VII. 

 1855, 359. 



Elongate. Above grayisb-lironzed or cui)re;)us: bead 

 and thorax tinged with greenish and darker than elytra ; 



neatb dull reddish-brown, legs and i)alpi paler. Thorax 

 scarcely wider than long, sides sinuate; disk coarsely and 

 i-atber 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 o^i- 

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

 11^5.) 



Lake and IMnrion counties ; scarce. May 25- An- 

 G-nst 20. 



484 (1558). IlYDKocHFS IN.-EQUALIS Lec, 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 

 fove;ie very distinct. Elytra deeply striate, the fifth, seventh and ninth 

 intervals elevated and interrui)ted behind the middle, giving the apjiear- 

 ance of a tr.-nisverse impression; fourth elevation op])osite break in tiiird. 

 Length 3 nmi. 



Lawrence County, from pond near Tauversity farm; scarce. 

 August 7. A .species of southern range. 



485 (1559). IIyurochus excavatus Lec, Proc. 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 

 .■t.5-3.9 mm. 



Ijake and La])orte counties; scarce. i\Lay 25. 



isC) (1560). IIydrociiiis srncePRErs Kand., P>ost. Journ. Niit. Hist., II. 

 1838. 40. 

 Elongate, rather slender. Lirown, with ;i distinct brassy tinge; beiieatli 

 l)ice()us; legs reddish-brown, knees (barker. Tliorax subtpnidrate, not wider 

 than long; disk with fovciTC less distinct than in cxcaiHitux; coarsely, deeply, 

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



