TIfE GROTTND BEETLES. 105 



tlu'ir striu' are ilisliiictlv piind ui'^mI in hiil one of llic nine, while 

 tlio hind angles of 1hi)r;',x ai'c nevci- cjii inalc. The iii'(>u|) incliKlcs 

 the subgenera Triaim and Ainara of llaywai-d's papef. 



Ki;V J'U SPKllES Ol GKOri' li. 



(/. Apiral spur (>\ \'Vi>u\ tihiic trilid ; sciilcllar stiia dl' clytr.-i tcnniiuitiii^' 



in nil necll.Uc (eye-liko) iiuiielurc at base: aii(eiin;c with (lie throe 



(If I't.ur liasal Joints [)ale. 



h. Tluirax iiarrnw cd Iroin base to apex, its liiiid aii.i^'lcs (ibliise; lonrth 



joint of auteiuiie in great part pale. 1")5. angustaia. 



lib. Thora.x narrowed from slightly beiiind llic middle to aiiex. hind 



angles shari)ly reetangular ; fourtii .joint ot antenna' in great part 



piceous. PA 1,1,1 1'Ks. 



(/(/. .\i)ieal spur of front tibia> simple. 



r. Basal j(.ints of antenn.-e not enrinate; prostcrnnni of male not [lune- 

 tured. 

 (/. Scntellar stria terminating in an oeellate puncture; femora iiiceous 

 or dark reddish-brown, tibia^ and tarsi paler. 



150. IMPLNCTICOLLIS. 



(/(/. Seutellar stria without oeollate puncture. 



('. Elytra! st!'i;e punctured; base of thorax finely inuictured. 



1.">T. HASILLAUIS. 



cr. Elytral stria- not or obsoletely punctured; base of tliorax smooth. 

 /■. Thorax narrowing from basal angles to apex; form broad, ro- 

 Itust ; terminal spur of frcmt tibi:e stouter than usual. 



CRASSISPINA. 



/'/. Thorax narrowing from in ti-ont of l)asc; form oblong-oval; 

 terminal spur of fi-ont tibia' noi-mai. ITyS. ctipreolata. 



re. Autenn;e with basal Joints l' and .". caianate above. 



(/. Seutellar stria ending ii, an <.;ePate jiuncture. 150. fai.i^x. 



f/g. Seutellar stria without puncture. 



/(. Basal impressions of tlicrax very faint; larger, 7.5-9 mm. 



160. protensa. 



lili. Basal impressions of tiiorax distinct, the outer oblique; smaller. 



6-7 mm. 161. polita. 



1.5."» (651). Amara angustata 8ay, Trans, Amer, Phil. Soc, II, 1823, .''<•: 

 ibid. II, 46n, 542. 

 Oval, convex. Black, bronzed, shining; legs dull reddish-yellow. Thorax 

 one-half wider than long, hind .auixlrs obtusely rounded, outer liasal impres- 

 sion olisiijcic. tlie inner small, spiu-seiy or not :it all imnelnred. lOlytra 

 not wider than llioiax. i,M-:nlually narrowed from the base; surface tinel.\- 

 .'ijutaceous, the stri-e not jmnclured, or si)arsely punctate at base; seutellar 

 stria ending in a large eve-like jiuncture. I>ength 6>-7.5 mm. 



roiiinion in sonthern half of the State; less so in the north. 

 .\pril lO-.Tni'c :?(>. On the tirst warni days of early spring this spe- 

 ( ies and llic next are often fdund lanining rapidly about near the 

 bases of ti'ces and stumps in ojjen woodjand pasliires. 



