THE SIIORT-'WTXGED S('AYi:X(;EE BEETLES. 4o3 



g. Disk of thorax entirely piceous, the side and basal margins 



narrowly pale. ST2. cixcticollis. 



gg. Thorax with a large black spot in each frmit angle, the two 



rows nnlted at middle. ST:;. AX'Ticrs. 



f/. Thorax wholly reddish-brown or reddish-yellow. 



It. Dorsal rciw of elytra with few punctures; male with a dis- 

 tinct tubercle on the sixth ventral. ST4. PYGii.?:rs. 

 hli. Dorsal row of elytra with numeroiis punctures. 



STo. THIXOTATt'S. 



cc. Abdomen bicolored. red, the last two sei;raents black ; dorsal row 



with few punctures. STil. cixctus. 



W). Head very elongate, twice or more longer than wide, widest at base : 



thorax entirely black; legs piceous. qu^sitoe. 



an. Maxillary palpi short, stout, third joint sometimes pubescent. 



'. Antenn;e with joints .j-K) wider than long. 



j. Elj-tra bicolored. black, the basal half red. S77. dimidiatus. 



jj. Elytra wholly dull reddish. S7S. ixtkisus. 



//. Antenna^ slender, the joints longer than wide ; black, the elytra and 



often the thorax reddish-brown, legs pale. sTi). cixoul.vtts. 



B. iiigei- Grav.. 7-11 mm., and B. a.TiUaris Grav.. 5-7 mm. in 

 length, have both been taken li.v Dnrv at Cincinnati. The latter is 

 a southern species which will be found, if at all, onl.v in the southern 

 third of the i^tate. 



STU CUMl). BoLETOBlus ci.MTicoLi.is Say. Trans. Anier. I'hil. Sue-.. IV, 

 1S34. 4(in: ibid. II. ."si. 

 Piceous, shining: legs and base and sides of thorax dull .velluw ; el.vtra 

 reddish-yelldw with a large black sjiot nenr outer apical angle; antenn:e 

 with three basal joints pale. Thorax not broader than elytra, hind angles 

 obtuse. El.rtra slightl.v longer than wide; the sutural and marginal rows 

 of punct\ires flue, distinct, dorsal row very faint. Abdomen sparsely punc- 

 tate, the hind margins of tlie segments paler. Length :',..j-."'),.5 mm. 



Throughcnt the State; frequent. ]May 11-Octobei- 10. Occurs 

 beneath bark, dead leaves and rotten wood, 



873 (2062). BoLETOBirs axticus Horn, Trans. Anier. Ent. Sue. XI, 1.S77. 

 117. 

 Piceous or dusky .vellow ; base of tliorax and elytra pale reddish-yellow; 

 apical portion of thorax, .i large spot at the outer aiiical an.gle of eac-h ely- 

 tron and often a scutellar spot Idack; antenn:e piceous, the apical and four 

 basal joints of former and the legs paler. Thorax slightly broader at l)ase 

 than elytra, hind angles obtuse. Elytra slightly longer than wide, discal 

 row of punctures distinct, the other two rows faint. Abdomen as in cincti- 

 coUis. Length 4-5 mm. 



One in "Wolcott collection from Jlillers. Lake County. July 13. 

 A member of the boreal fauna. 



