1855.] 349 



gulis posticis rectis, subprominulis, basi utrinque discrete bifoveato, foveis 

 punctatis, elytris striis crenulatis ad apicem laevibus, antennis pedibusque 

 obscure rufis. Long. *33 -35. 



Dej. Sp. Gen. 3, 509. 



Brady t us exaratus Lee. Ann. Lye. Nat. Hist. 4, 367. 



Middle States, not rare. The reference by me of Curtonotus brevilahris 

 Kirby, (Fauna Bor. Am. 35) to this species is undoubtedly incorrect. 



13. A. f u r t i v a , oblongo-ovalis, latiuscula, piceo-rufa (immatura ?) thorace 

 latitudine fere duplo breviore, antice paulo postice vero vix angustato, lateribus 

 latins rotundatis, angulis posticis rectis subprominulis, basi utrinque discrete 

 bifoveato, foveis punctatis, elytris striis crenulatis ad apicem laevibus, antennis 

 pedibusque pallidioribus. Long. '35. 



Say, Trans. Am. Phil. Soc. 4~ 429. 



Bradytus furtivus Lee. Ann. Lye Nat. Hist. 4, 367. 



Nebraska and Illinois. Allied to the preceding, but the thorax is hardly nar- 

 rowed towards the base, and less rounded on the sides; the posterior angles, as 

 in A. exarata, are rectangular, and project like a little tooth. 



14. A.Ore?ona, oblongo-ovalis, aeneo-nigra, thorace latitudine plus sesqui 

 breviore, antice posticeque subangustato, lateribus magis rotundatis, angulis 

 posticis obtusis, basi subtiliter punctata utrinque profunde bifoveata, elytris 

 striis crenulatis ad apicem laevibus, pedibus antennisque obscure rufis. Long. -35. 



One specimen from Fort Vancouver, Oregon ; Col. McCall. Resembles the 

 next, but is smaller and has the sides of the thorax more rounded, so that the 

 basal angles are rendered more obtuse. 



15. A. 1 i b e r a , oblongo-ovalis nigro-picea, subaenescens, thorace latitudine 

 plus sesqui breviore, antice angustato, postice parum angustato, lateribus rotun- 

 datis, angulis posticis obtusis, basi subtiliter punctata utrinque profunde bifo- 

 veata, elytris striis crenulatis ad apicem laevibus, antennis palpisque rufis, 

 pedibus obscurioribus. Long. *38 *4l. 



Isopleurus hyperborerts\ Lee. Ann. Lye. Nat. Hist. 4, 357. 



Lake Superior, Illinois, Wisconsin, Nebraska. The reference of this insect 

 to Amara hyperborea Dej. (Sp. Gen. 5, 800) is not warranted by the context ; 

 since that species is compared with A. fodi?i<z, it must be inferred that it 

 belongs to the preceding division of the genus, in the neighborhood of A. obtusa . 

 Curtonotus latior Kirby may possibly be identical with the present species, but 

 tbe bifid tooth of the mentum is insisted on so strongly, as proving that it 

 belongs to the division with A. co?ivexiuscula y &c, that without reference to 

 the type the synonym cannot be prudently adopted; under these circumstances 

 I am compelled to propose a new specific name. 



16. A. septentrionalis, elongata, oblongo-ovalis, ni^ro-picea, supra 

 subaenea, thorace latitudine sesqui breviore, antice angustato, postice parum 

 angustato, angulis posticis subobtusis, lateribus latius rotundatis, basi parcius 

 punctata utrinque profunde bifoveata, elytris striis subtilius punctatis ad apicem 

 laevibus, antennis palpisque rufis, pedibus obscurioribus. Long. *3. 



Isopleurus septentrionalis Lee. Ann. Lye. Nat. Hist. 4, 358. 

 Lake Superior. Narrower than the preceding species, and much smaller, but 

 resembling it in other characters. 



d. AMARA emend. Zimm. 

 a.. Tibiae anticas calcare trifido. 



17. A. a n g u s t a t a , ovalis, supra aenea, thorace latitudine sesqui breviore, 

 a basi antrorsum angustato, ad apicem emarginato, basi utrinque leviter bifo- 

 veato, foveis saepe parce punctatis, externa obliqua saepe obsoleta; elytris tho- 

 race haud latioribus a basi postice subangustatis, striis postice profundioribus, 

 7mo saepe parum distincta, palpis pedibusque rufis, antennis fuscis, articulis 4 

 baseos rufis. Long. *25 28. 



Say, Trans. Am. Phil. Soc. 2, 36, (Feronia) ; ibid. 4, 428. 



