THE GEOTTND BEETLES. 151 



XLV. METABLETUS Sch.-Goeb. 1846. (Gr., "changeable.") 



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

 beetle having the ligula elongate-oval with five short setae in front, 

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

 apex. 



266 (914). METABLETUS AMERICANUS Dej., Spec. V, 1829, 361. 



Rather slender, subclepressed. 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. Resembles Blechrns nigritnis in form and size. A member 

 of the boreal fauna. 



XLVI. AXINOPALPUS Lee. 1848. (Gr., " 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). AXINOPALPUS HIFLAGIATUS Dej.. Spec. I, 1825, 243. 



Rather broad, subdepressed. Piceous, shining ; antenna? 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 metallic colors and in 

 our species having the upper side of tarsi convex, mot sulcate or im- 

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

 should occur. 



KEY TO INDIANA SPECIES OF CALLIDA. 



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



268. PUNCTATA. 



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

 their striae fine, intervals flat. PUKPUREA. 



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 



