1'LATK V. 



All the drawings ;nv \>v .1. Unify I'.lakc. The s[icciiiir!i~ <lra\vn all ronif from Florissant, 

 ( 'olorailo. 



I'age. 



Fie.. l.( '.IL'IO) ( ; ). Tnipistcrnus vanus :W 



L'. I ::I7!H ( ',"). Tn.pislcnins limitatus.. 40 



3. ( 7.SI))(Y). [lyilrol.ius inaivi-atus.. 4:; 



4. ( IL') I ; ). Ily.lrcx'lian- cxtriralu- 41 



'>. ( 47011) ( ; ). Sil],lia rnlnvata 44 



(i. (lL'o:;!M i ',">. Agyrtes primoticus . . 45 



7. ( :iL'!M i i 1 / 1 ' Axiylophorus immotus - 47 



5. ( IL'O) ( ; ; ). IIctcn.th..],s coiiticrns. 4s 

 '.i ll'IM (-',">. IIi'ti-|-otlio| i-oiitic-ciis; licuilaml tlicira\. . 4> 



10. ( 147S) (',-). qucilins .haiiiU-rlini .. 49 



11. (l'J().'>7) Cf). tincdins rliaiiihrrlini .. 411 



