Mineralogy and Geology. 269 
the femora, and do not know how far they may be removed from their 
natural connection with the body; and since the tarsi are wanting we 
cations of antennz taking their rise at the usual point 
g: : 
il -n full in a paper read before the Boston 
dh Nebel i seamen ore soon pa paidahed in their Memoirs. 
ed, I am enabled to determine with 
to the Neuroptera. 
is question fully, and I will 
am satisfied that the 
i inci i isfactory 
occupied by the principal, nervures of the wings form most sati 
banat for sr deaenetias of families in this group of Neuroptera, ener 
upon which no systematist appears hitherto to have relied, and to whi 
none have invited any attention, — it 
: e: bee 
areca nein yea aor i value of unimportant characters to 
the exclusion of those of more weighty significance. Heer, however, i 
his work on the fossil insects of Ciningen é&e., has distinguished the Ter 
Mitina by characters of this sort in a proper e308 ~~ is ee re- 
gretted have extended his studies to other lies 
