THE siionx-wixfiED s( A\F\iiKR iii;]:ti.i;s. 423 



uu. (_'olor nearly uniform, the elytra ucil distinctly paler except toward tlie 

 tip ; larger, 7 or more mm. 

 f). AntenniB very stout, more slender toward ar>ex. the middle joints 

 rounded, never longer than wide. 

 c. Elytra bicolored, black basally and reddish on apical third, as long 

 as thorax; length 10 mm. S09. pkocebcm. 



cc. El^-tra wholly blacli; or piceous. 



fl. IClx-tra much longer and wider than thorax, a fourth longer than 

 wide; legs and antennje dark n>iI(li.sh-brown ; length 7 mm. 



SPISSICOBXF.. 



lid. i:iytra i'i|ual in length to thorax; legs wholly xiale reddisli- 

 browu; length S-iO mm.; sixth ventral of male with a length- 

 wise groove near base, not notched at tip. ¥10. akmatlm. 

 hh. Antennffi only moderately stout, the joints at least one-half Iciiger 

 than wide, obeonie : sixth ventral of male more or less notched at 

 tip. 

 ( . Elytra not longer, and often distinctly shorter than thorax. 



/. Antennse not longer than head and thorax, the joints less than 

 twice as long as wide; gular sutures straight, nearest together 

 at base of head. 

 //. I'unctures of elytra rather fine, sparse and inconspicuous; 

 notch of last ventral of male wide and deep, distinct; lengtli 

 7.5-9 mm. 

 h. Head and thorax sparsely and rattier finely punctured. 



811. SIMILE. 



/(//. Head and thorax densely and rather coarsely punctured. 



S12. IXSAXUS. 



//;/. Punctures of elytra coarse, uneven and conspicucais : last ven- 

 tral of male truncate, the notch vei-y small ; length 6.5- 

 7.5 mm. simplex. 



//. Antennie slender, longer than head and thorax, the middle joints 

 fully twice as long as wide; gular sutures curved, nearer to- 

 gether at middle of area behind the mouth ; color black, legs 

 and antenn;e paler; length r,.7-7..j mm. ceckalis. 



cc. Elytra much longer than thorax; abdomen narrower than elytra, 

 the last ventral of male broadly and semicircularly notched; 

 black, anteunje and legs brown ; length 6.5-7..5 mm. coxcolor. 



L. bicolor Lee. was described from Detroit. Michigan, and L. 

 .<.7>('.«/(:or»r Casey from ^Massachusetts and Detroit, so that one or 

 both of them are apt to be found in Indiana. 



SiiO ( ). I.ATHROBit'M PEOCEKtM f'asey. Trans. Acad. i'ci. St. L., XV, 



IfKi"). S:2. 

 Elongate, rather slender. Black, shining; elytra becoming gradually 

 but distinctly reddish on ajiical third: legs reddish-brown; antenna; piceous. 

 with a reddish timre. Head equal in width to thorax, sides parallel, sparsely, 

 rather finely and irregularly punctate. Thorax oblong, sides nearly straight, 

 feebly converging toward base, finely and rather sparsely punctate. Elytra 

 rather closely and finely jmnctate. Abdomen as wide as elytra, minutely 

 and rather densely punctate. Length 0-10 mm. 



