THE LOXii-IlORNED WOOD-BORIiXG BEETLES. lOST) 



c. Elytra rounded at tip with spine at suture, very rarely with the apex 

 acute and without sutural spine; gray with yellow patches. 



2004. CALCAKATA. 



cc: Elytra rounded at tip without spine at suture. 

 /. Elytra with marginal or submarginal stripes. 

 g. Thorax and elytra not black. 



li. Pubescence silvery white; thorax and elytra brown or yellow- 

 ish-brown with two white stripes. (Fig. 470.) caxdida. 

 hli. Pubescence ash-gray. 



i. Thorax yellow with four Ijlack spots on disk and one on each 

 side; elytra with broad marginal and sutural stripes bright 



yellow. PUNCTICOLLIS. 



it. Thorax and el,\-tra .1,'i-ay, ciich with an orange stripe on sides. 



j. Second and third crossbands on elytra obli(iue, a small 



dark spot usually on each side of first and one behind 



the third. 2005. tridextata. 



jj. First and second crossbands on elytra oblique ; small dark 



spots wanting. 200<j. ihitaxs. 



rjli. Thorax and elytra black, with orange stripes on sides, rarely a 



sutural orange stripe present ; surface coarsely punctured. 



2007. LATERALIS. 



ft. Elytra without stripes, usually with spots, rarely unicolored. 

 Ic. Elytra with white pubescent spots; thorax with two white 

 stripes ; sides and under surface white. 

 L Humeri of elytra not white ; two large white spots on each ely- 

 tron, reaching neither margin or suture. (Fig. 472.) 



CRETATA. 



//. Humeri white; two white spots near the suture on each ely- 

 tron. FAYI. 

 A-7i-. Elytra without white pubescent spots. 



m. Cinnamon or reddish-brown, sometimes nearly black ; male 

 smaller, 10 mm., with elytra unicolored ; female, larger, 

 15 mm., with a transverse undulated yellowish crossbar at 

 middle. 2008. discoidea. 



mm. Olive yellow, with three small black dots near middle of each 

 elytron, these sometimes wanting. 2009. vestita. 



.s'. ohli([ua Shv (Fig. 41)8), Icnsth 16-1-9 inin.. is Ifnown from New 

 England to ^lichigan and Wisconsin. It is found on black alder 

 {Alnus seiTulafa Willd.) in June and very probabty occurs in north- 

 ern Indiana, .s'. moesta Lee, length S-9 mm., breeds in poplars and 

 is known from New England, Northern Ohio, iliehigan and west- 

 ward. 



2002 (r,47'.i). Sai'RRUA iinuA Say. Jonrn. I'liil. Acad. Nat. Sci.. Ill, 1824, 

 -409; ihia. II. 191. 

 ElonKMlc. robust. Black, sparsely clotlicd with gray and .yellow pubes- 

 cence. Thorax witli an oraii.iie median stripe exteudin;,' onto the head and 

 a similar stripe each side; elytra with numerous patches of denser yellow 



