THE GHOUND BEETLES. 151 



XLV. Metabletus Seh.-Goeb. 1846. (Gr., "changeable.") 

 Represented in the United States by a single small, oblong black 

 beetle having the ligula elongate-oval Avith five short sets in front, 

 thorax slightly lobed at base, mentum with a small tooth notched at 

 apex. 



266 (914). Metabletus ameeicanus Dej., Spec. V, 1829, 361. 



Rather slender, subdepressed. Uniform black, shining. Thorax nearly 

 twice as wide as long, narrowed behind ; median line distinct, deep ; margin 

 very narrow, hind angles distinct, not prominent. Elytral striae very faint, 

 not punctured. Length 3.5 mm. 



Lake County; rare. May 14. Taken from beneath bark of 

 pine. Eesembles Blechrus nigrimis in form and size. A member 

 of the boreal fauna. 



XLVI. AxiNOPALPus Lee. 1848. (G-r., "ax + palpus.") 



Very small beetles having the mentum emarginate, distinctly 

 toothed ; labial palpi thick, the last .joint oval ; maxillary palpi long 

 and slender, the last joint cylindrical and acutely prolonged at tip. 

 One species occurs in Indiana. 



267 (915). AxiNOPAUUs kiplagiatus Dej., Spec. I, 1825, 243. 



Rather broad, subdepressed. Piceous, shining; antennse dusky, paler 

 at base; legs and an oblique stripe, extending from humerus to middle of 

 elytra, pale yellow. Thorax less than twice as wide as long, slightly cor- 

 date ; sides curved, sinuate near the hind angles, which are rectangular ; 

 median impressed line distinct, entire. Elytra faintly striate on middle of 

 disk. Length 3 mm. 



Lake, Marshall and Marion counties; scarce. June 24-Novem- 

 ber 23. Occurs beneath bark in damp localities. 



XLVII. Callida Dej. 1825. (Gr., "beautiful.") 

 Small elongate beetles, usually of bright metaUie colors and in 

 our species having the upper side of tarsi convex, not sulcate or im- 

 pressed. One .species has been taken in Indiana, while another 

 should occur. 



KEY TO INDIANA SPECIES OF CAIilDA. 



a. Body above bicolored ; thorax red, elytra blue or green. 



268. PtTNOTATA. 



tttt. Body bright blue or green; elytra not longer than head and thorax, 

 their strise fine, intervals flat. pubpueea. 



268 (923). Callida punctata Lee, Ann. Lye. Nat. Hist., IV, 1848, 189. 

 Elongate, narrow, convex. Head usually dark blue; thorax reddish- 

 yellow; elytra bright green; legs yellow, the tips of the femora and tarsi 



