lOS FAMILY IT. CAEABin.+;. 



ee. Sides of thorax not flattened ; prosternum without setae ; piceous. 

 shining. 166. chalcea. 



dd. Prostenmm of male smooth as in the females and without setse; 

 sides of thorax not flattened. ^ 

 /'. Elytral striae fine, the intervals flat; thorax distinctly emarginate 

 at apex. 167. sub^nea. 



ff. Elytral strife deep, the intervals convex : thorax nearly trimcate 

 at apex. 

 g. Foim oblnng; hiaid angles of thorax much rounded; sides of 

 metasternum coarsely punctate; larger, 6-T mm. 



168. BUBBICA. 



(/(/. Form more oval: hind antrles -ulireetangular or I'btuse: me- 

 tasternum smooth ; smaller, not over .5.5 mm. 



169. MCScuLrs. 



162 (670). Amaba i>-teestitialis r>e.i.. Sp. Gen. Ill, :'>2S. 472. 

 Otilong-oval. moderat€-ly convex. Colni- variable: brownish-bronze to 



green, cupreous or nearly black. Thorax loss than twice as wide at base 

 as long, apex feebly einarginate. hind angles ie< tangular ; Imsal impressions 

 usually distinct but shallow, the outer •iblique. the inner -^hort, not punc- 

 tured. Elytral strire with very fine, indistinct imnetures: intorvals more 

 or less convex witli undulating surf;ioe. Lengtli 7-9 niui. 



A species of northern range, rare in Indiana. A single speri- 

 nien was taken in Vigo County from beneath drift in a swamp. 

 Several others '.vere obtained near Hessville and Wolf Lake, Lake 

 Cotmty. by Woleott. March 26-:\lay 26. 



163 ('669). Amara erratha Sturm. Deats.he Ins.. VI. 55. 

 Elongate-oval. Bronzed-cupreous or nearly black. ^Iiinuiu': antenuse 



piceous black, the two basal joints often reddish: under surface and legs 

 piceous, shining. Thorax not twice as wide at base as long at middle. side> 

 narrowing to front, hind angles rectangular: basal impressiiins very feeble, 

 the outer usually the smaller and obliquely jilaced : surface rarely slightly 

 punctate near the iimer depression. Elytra finely striate, the stris finely 

 but distinctly punctured: intervals flat or slightly convex. alutaeei'US in 

 female. Length iV-7.5 mm. 



Lake County: scarce. INIareh 26--Tiine 26. A oircumpolar spe- 

 cies which finds its snuthem limit in the transition life zone of 

 northern Indiana. Although Horn s^ys in his key that the surface 

 is not. alutaeeous it is distinctly sci jn the female. 



ir,4 (i:74i. .ViiARA OBESA S.iy. Trans. Amer. Phil. So... II. 

 1^2.^. :!7: ibid. II. 464. 

 Oblong-oval, robust, not very convex. Fii-eous black, shin- 

 ing; elytra opaque in female: antennae and legs reddish- 

 brown. Thorax one-half broader tian long, hind angles 

 rectangular: basal impre^-^i ii< double, finely punctate, the 

 \ outer deeper and with ui exlernal carina. Elytral striiv 

 fie 66 •- 2 '"ore deeply iuiiiro-^^edal .-ipex. very finely puni-turcil. Length 

 (.tfter Riley.)' :M2mni. (Fig. i;i;. i 



