70 



FAMILY IT. CAEABIDiE. 



mm. in length, occurs in Canada and Michigan and probably in 

 northern Indiana. 



77 (305). Bembidium carinula Ohaud., Rev. et Mag. Zool., XX, 1868, 239. 



Broad, slightly depressed. Coppery bronze to black; antennae and 

 femora bronzed-piceous, the tibiae and tarsi often paler. Thorax with the 

 sides curved in front, deeply sinuate behind; hind angles subacute, cari- 

 nate- disk alutaceous, finely wrinkled near base and along the median 

 line-' basal impressions broad, deep, bistriate. Elytra one-half wider than 

 thorax, alutaceous. finely striate, the striae finely punctate. Length 5.5-7 mm. 



A handsome bronzed form, common along the beach of Lake 

 Michigan and the larger lakes of northern Indiana ; also in Craw- 

 ford County, May 13-October 21. 



78 (304). Bembidium functatostmatum Say. Trans. Ainer. Phil. Soc. II, 



1823, 83 ; ibid. II, 498, 550. 



Robust, moderately convex. Bronzed, more or less coppery; antennae 

 and legs bronzed-piceous, the femora at base and the tibiae beneath often 

 reddish-yellow. Thorax with sides slightly curved in front, sinuate behind ; 

 hind angles prominent, acute, not carinate; disk slightly rugose at base 

 and along the median line, the basal impressions broad and deep. Elytra! 

 striae deep and very distinctly punctate. Length 6.2-7.5 mm. 



Crawford County; rare. May 17. The largest species of the 

 group. 



B. robusticolle Hayw, 5.7-6.2 mm. in length, is known from 

 Michigan, Iowa and Kansas, and doubtless occurs in northern In- 

 diana. 



79 (311). Bembidium coxendix Say. Journ. Phil. Acad. Nat. Sci., III, 



1823, 151 ; ibid. II, 97. 



Slightly elongate, rather slender. Greenish-bronze or bluish-black, 

 shining; antennae, femora and tarsi bronzed-piceous; tibiae, base of femora 

 and two basal joints of antennae reddish-brown. Thorax one-halt wider 

 than long, sides moderately curved in front, sinuate behind; hmd ang es 

 slightly prominent, subacute, very finely carinate; disk minutely alu- 

 taceous. the basal impressions broad and deep. Elytra one-third wider 

 than thorax, deeply striate-punctate. Length 5.5-6.5 mm. 



Throughout the State ; scarce. April 19-September 7. Occurs 

 along moist sand bars of streams. One of the most handsome mem- 

 bers of the genus. 



80 (311a). Bembidium confusum Hayw., Trans. Amer. Ent. Soc, XXIV. 



1897, 52. 



Moderately robust, convex. Bronzed, usually coppery, shining; disk 

 of elytra dull brownish-yellow; legs and basal third of antennae pale yel- 

 low Thorax less than one half wider than long, sides curved nearly to 

 base- hind angles not prominent, subrectangular, feebly carinate; disk 



