72 



FAMILY IT. CAKABIM. 



ft. Thorax cordate, convex, the basal fovea with two striae. 



Elytra greenish-black, each with a well defined basal and another 

 subapical spot pale ; legs dull reddish-yellow ; thorax distinctly 

 narrower at base than apex. ustulatum. 

 ii. Elytra either without spots or with a single pale submarginal one 

 near apex. 



j. Head small, narrower than thorax at apex ; elytra with all the 

 strise entire, dilated on the disk and much finer at sides and 

 tip ; brownish-bronzed with a large oblique, submarginal, pale 

 spot one-third from apex. postkemum. 



jj. Head as wide as the thorax at apex ; elytra with only the first 

 and second stria; entire, the others abbreviated on apical half. 



86. picipes. 



81 (317). Bembidium ameeicanum Dej., Spec, V, 1831, 84. 



Rather broad, subdepressed. -Uniform blackish-bronzed, more or less 

 shining. Antennae one-half the length of body, piceous, the first and second 

 joints and the tibiae dark reddish-brown. Thorax more than one-half wider 

 than long; apex nearly truncate, slightly broader than base; hind angles 

 subrectangular ; disk finely rugose at base, median line distinct, basal im- 

 pressions shallow. Elytra finely alutaceous, about one-half wider than 

 thorax, finely striate, the striae distinctly punctate to behind the middle. 

 Length 5-G mm. 



Throughout the State; frequent, June 7-September 17. 



B. dilataium Lec. ? having the sides of thorax strongly curved in 

 front and the legs dark reddish-brwn, is known from Pennsylvania 

 and Oklahoma and should occur in Indiana. 



82 (319). Bembidium honestum Say, Trans. Araer, Phil. Soc, II, 1823, 



82 ; ibid. II, 498-550. 

 Rather elongate, subdepressed. Bronzed, more or less coppery, rarely 

 bluish or greenish, shining; antennae and legs piceous. Thorax less than 

 one-half wider than long, apex emarginate ; sides slightly curved in front, 

 feebly sinuate behind; disk rugose at base, median line deep, abbreviated 

 before and behind. Elytra one-half wider than thorax, deeply striate- 

 punctate, the punctures almost obsolete at tip. Length 5.7-6.7 mm. 



Lake, Franklin, Marion and Putnam counties; scarce. April 

 23-December 7. Listed as B. antiquum Dej., but Say's name has 

 priority. 



83 (320). Bembidium chalceum Dej., Spec, V, 1831, 89. 



More slender and more convex than honestum. Coppery bronze, rarely 

 greenish or bluish-black; legs rufo-piceous, the femora at base and tibia- 

 paler. Thorax with sides more strongly curved in front, distinctly more 

 narrowed and deeply sinuate behind than in honestum, the apex truncate. 

 Elytra oblong-oval, deeply striate; intervals convex. Length 5.5-6.2 mm. 



Throughout the State ; frequent. June 15-September 4. 



