COLKOITKKA ('Ai;.\l;lI).K. 



hut without more material it seems unnere.ssarv to name it. nr guesfl aa to 

 its affinities." Horn, loo. cit. 



Besides the t \vn elytra referred to ahove I >r Horn has sent me 



attached in the sai -;inl another elytron, iietter preserved. },\\\ with the 



apex lacking; the chitinoiis portions of the oth'-r (Varments perfect! \ 

 reseinhle this, and there can scarcely he any doiiht that the\ helon- to-vther. 



This new fragment is of a piceous color. Then- are nim- stria . countiiiLr 

 the one next the outer edge; the interspaces are O.o mm l>road. moderate]\ 

 coii\e.\. -mootli, luit \\ith transverse impressed line> at \-er\- irrf-^ular and 

 rather infrequent intei'\al,>, \\hich can li:irdl\- he due alto^etiier to pre-er 

 vation, as they seldom or never cross continuously two contiguous inter 

 spaces; the stria' are deep, taintly margined at the hottom. hut in none o| 

 them, nor in any of those in the specimens descrihed hv 1 >r. Horn, can I 

 discover the slightest si^-n ot puncture^. 



fjCngth of this elytron ( t'ra^mentarv t. (i.. r )""" : lireadth of same (com- 

 plete), 2.5"""; width of the two contiguous elytra, '< 



With this additional knowledge it seems worth while to restore the 

 name Dr. Horn once thought of employing. 



Bone caves of Port Kennedy, Pennsylvania. 



I'TEROSTH'lirs.' sp. 



IM. 1, !'!>;. 5. 

 Pteroaii ; ' }p. Horn, Trans. A r. Km. 800., V, _'!:; 



"The greater portion of two elytra with the hasal and apical ends 

 wanting, indicate a form of larger size than an) of our eastern -pecies of 

 PterOBtichus. The elytral suhstamv is in extremely had state, heini; 

 wrinkled and cracked in such a manner as to render a description of its sur- 

 face impossihle. It ma\ be a LophogloSSUS." Horn, loc cit. 



There are eight striae l>eside> that at the outer edge; the interspaces 

 are u..t-J""" in width, more (fattened than in P. hevigatus, hroken into iniiii- 

 ineralile fragments, like sun-drieil mud. resulting in a dead-hlack color, hut 

 with no indications that the surface \\a- otherwise than quite smooth. The 



length of one of the elytra (the base broken) ia l" ; it> width (complete 



3.25 



Hone caves ot I'orl Kennedy, Pennsylvania. 

 \ in MM :;i 



