SYSTEM OF INSECTS. 371 
4, Ontuoptera® (Ulonota F.). This Order, which 
Linné at first regarded as belonging to the Coleoptera®, 
and afterwards improperly added to the suctorious He- 
miptera, was very judiciously separated from both by 
De Geer, under the name of Dermaptera, a name not 
improper, and which ought to have been retained. Its 
present name was, I believe, assigned to it by Olivier ; 
and as this is generally in use, I shall not attempt to dis- 
turb it. Dr. Leach divided the Order into two, sepa- 
rating the Blattina M°L. from it, under the name of 
Dictyoptera®. He was led to this by the tegmina decus- 
sating or lapping obliquely over each other, whereas in 
the rest the horizontal portion of one tegmen lies longi- 
tudinally over that of the other; he also probably took 
their depressed body into consideration ;—these circum- 
stances, however, rather indicate a ¢ribe or suborder ; 
and as such Mr. MacLeay regards it. 
Der. Metamorphosis semicomplete. 
Legs suspended. 
Tegmina generally pergameneous‘, reticulated 
with nervures, more or less incumbent, cover- 
ing the wings. 
Wings longitudinally folded, ample: newration 
reticulated. 
5. NEuRopTERA® (Synistata, Odonota F.). Of all 
the Linnean Orders this appears to consist of the most 
discordant tribes; so that it seems next to impossible to 
construct a definition that will include them all, unless 
2 From 060s, straight. > Fn. Suec. 
© From dcxtvov, a@ net. | * See above, p. 258. 
© From veveoy, a nerve. 
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