908 ZOOLOGY INSECTS. 



The following specimens having been found in the collections of 

 Orthoptera sent me, are here appended. 



ARACHNIDA. 



Although not embraced in my specialty, yet as I find one specimen 

 of peculiar interest I desire to make a note of the fact. 



TARANTULIDAE. 



THELYPHONUS EXCUBITOE, Gir. 

 Thelyphonus cxcubitor, GIR., Marcy's Exp. Red Riv. Louis., 265, pi. xvii, f. 1. 



The collection contains a fine, almost perfect specimen, of this singular 

 species. The description and figures of Girard are so exact that nothing 

 can be added. 



SCORPIONIDAE. 



SCORPIO (TELEGONUS) BOREUS, Gir. 

 Scorpio (Telegonus) borons, GIB., Marcy's Exp. Red Riv. Louis., 2G7, pi. xvii, f. 5. 



I find two specimens in the collection which appear to belong to this 

 species, though rather smaller than the one described by Girard. The 

 color of the alcoholic specimens is yellow, but doubtless the greenish cast 

 has faded out. 



