12 
FIRST ANNUAL REPORT OF THE 
casionally adding the corresponding scientific terms in a parenthe¬ 
sis, where perspicuity and precision required it. For instance, it 
we talk simply of the “jaws ” of an insect, an entomologist maybe 
uncertain as to our meaning; for in the typical insect there are 
two pairs of jaws, placed one above the other and called respectively 
in technical language “ the mandibles and “the maxils. But if 
we write “jaws (mandibles),” then everybody will know what we 
refer to, with just as much accuracy as his peculiar wants may 
require. 
The illustrations furnished herewith have been drawn by myself 
and engraved by Mr. Wm. Mackwitz, of St. Louis. Whatever 
defects there may be in them must be laid to my door ; for, like 
everything else which that artist has hitherto executed for me, 
they are exact and faithful reproductions on wood of the original 
sketches on paper. 
All which is respectfully submitted by 
Benj. D. Walsh, M. A., 
Acting State Entomologist . 
Rock Island, Illinois, Dec. 18,1867. 
