350 [June, 



Amara indistincta Hald. Proc. Acad. Nat. Sc. 1, 300. 



Tricena angustata et indistincta Lee. Ann. Lye. Nat. Hist. 4, 365. 



Middle and Southern States, Lake Superior and Nebraska ; abundant. The 

 female is wider than the male, but the elytra are not perceptibly dilated behind 

 the base. Dr. Zimmermann (Silb. Rev. Ent. 2, 225) has misplaced this species 

 among those having the spur of the anterior tibiae simple. 



18. A. pal I ip e s , longius ovalis, supra aenea vel nigro-aenea, thorace lati- 

 tudine fere sesqui breviore, a medio antrorsum angustato, ad apicem emarginato, 

 basi utrinque leviter bifoveato, foveis subpunctatis, externa minore obliqua; 

 elytris thorace paulo latioribus pone basin paulo dilatatis ad apicem minus acu- 

 minatis, striis postice hand profundioribus, palpis pedibusque rufis, antennis 

 piceis articulis 3 baseos rufis. Long. 29. 



Kirby, Fauna Bor. Am. 39. 



Tricena depresses, Lee. Ann. Lye Nat. Hist. 4, 3G5. 



Lake Superior and Northern New York. Sufficiently distinct from the pre- 

 ceding by the thorax being less gradually narrowed in front, by the elytra being 

 slightly dilated, wider than the thorax and more obtusely rounded at the tip, 

 with the striae not deeper behind, and finally by the antennae being darker, with 

 only three joints pale. 



The synonym belongs to a dark colored variety, with greenish reflexions. 



19. A. s c i t u 1 a , ovalis, supra aenea, thorace latitudine haud sesqui breviore, 

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

 veato foveis subpunctatis, externa minore, elytris thorace vix latioribus striis 

 antice saepe obsolete punctatis, postice profundioribus, femoribus nigro-piceis, 

 tibiis tarsisque saepe rufo-piceis, antennis piceis articulis 3 baseos rufis, para- 

 pleuris abdominisque lateribus punctatis. Long. '27 31. 



Zimmermann, Gisti's Faunus, 1, 32: Silberman's Rev. Ent. 2, 223. Man- 

 nerheim, Bull. Mosc. 1843, 207. 



San Francisco, California, not rare. This species varies somewhat in the punc- 

 tuation of the striae of the elytra, and the sides of the abdomen ; sometimes the 

 punctures are quite distinct, while at others they can hardly be seen : the para- 

 pleurae are, however, always marked with a few punctures. 



A single specimen (male) is much narrower than the others, having the pro- 

 portions of A. angustata, and the thorax is less narrowed anteriorly ; it possibly 

 indicates a nearly allied species, but in the absence of other specimens, it would 

 be unsafe to separate it. 



20. A. long ula, ovalis longior, supra aenea, thorace latitudine vix breviore 

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

 veato, foveis subpunctatis, elytris thorace vix latioribus, striis postice profun- 

 dioribus, antennis piceis, articulis tribus baseos, pedibusque ferrugineis ; para- 

 pleuris metasterni abdominisque lateribus confertim punctatis. Long. *3. 



San Francisco, not rare. Narrower that A. scitula, and readily distinguished 

 by the reddish feet ; the punctures of the metasternum are not confined to the 

 parapleurae, and extend on to the middle segment. 



0. Tibiae anticae calcare simplici. 

 * Antennae rufae, articulis basalibus haud carinatis. 



21. A. in sign is, nigro-cyanea, vel nigro-aenea, ovalis convexa, thorace 

 antrorsum parum angustato, lateribus antice rotundatis, basi punctata utrinque 

 vage bifoveata, elytris profunde striatis, thorace haud latioribus, antennis palpis 

 tibiis tarsisque piceo-rufis, femoribus obscurioribus. Long. -4 43. 



Dej. Sp. Gen. 5, 796. Mannh. Bull. Mosc. 1843, 208; ibid. 1853, No. 34. 



San Jose and San Diego, California. I cannot imagine what the expression 

 " interstitiis subtilissime punctulatis," applied to the elytra, in the description 

 of the latter author quoted, can mean. The elytra of the female are dull from 

 minute granulations, as in many species of Harpalus, while those of the male 

 are shining; in neither sex are any punctures visible. 



