34 Dana on Fossil Insects from the Carboniferous. ° 
Art. IL.—On Fossil Insects from the Carboniferous formation in 
Illinois; by James D. Dana. Ae 
The remains of Insects, represented in the following figures, 
were discovered by Mr. John G. Bronson in the Carbonifer- 
ous beds at Morris, Illinois. 
They occur in the flattened 
iron-stone concretions of the 
‘beds. Other concretions of 
the locality contain various 
coal plants, and also the re- 
appear in the Report on the 
Geology of the State by Mr. 
Worthen. Among them, ac- 
cording to Mr. Lesquereux, 
the following are common 
species: Neuropteris hirsuta 
, NV. rarinervis Brgt., 
Pecopteris Miltont Bret., P. 
unita Bret., P. equalis Bret., 
nnularia longifolia Bret. 
The description of the Crus- 
taceans we reserve for an- 
other time. 
_ Figure 1 is twice the natu- 
ral size lineally. In general 
form and the neuration of 
the wings the Insect is close- 
ly like the Semblids among 
the Neuropters, and especially, 
the Chauliodes i 
la yy 
Wy 
i 
MM 
no reason tan 
MMAR lic 
J ote ) € species P Pp |S ete 2 
that therefore it must have been a Newropter, and not an Orthop- — 
ter, Yet in the broad costate femurs of the second pair of legs, — 
and the form of the prothorax, it approaches the Orthdpters of — 
> Phyllium family, and is very unlike any known Neuroptet 
the anterior legs are peculiar in having a large and broad femt 
ig: 
ak 
er spines as long as the joint, t 
4 
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GAC i ere SS oo eg es Sa eae ay Se eh ie hal os ac ea 
