FEBRUARY. 29 



tudinally, anterior pair transformed into short slender appendages ; 

 mouth with slender acute jaws, and two palpi ; tarsi two- three- or 

 four-jointed; antennae two; body long and narrow ; eyes very large ; 

 thorax very large ; legs moderate ; size small. 



This Order has but one family Stylopidce, sufficiently 

 described in the characters of the order. 



ORDER III. DERMAPTERA, Leach. 



Characters. Wings two, with numerous transverse and longi- 

 tudinal folds ; elytra leathery, only partially covering the wings, 

 and uniting with a straight suture or opening ; mouth with trans- 

 versely movable jaws ; body forked at the end, long, narrow, and 

 flattened; head of moderate size; eyes small; clypeus distinct; 

 palpi filiform. 



This Order has only one family Forficulidce. 



ORDER IV. DICTYOPTERA, Leach. 



Characters. Wings two, longitudinally folded; elytra coriaceous, 

 and one folding over the margin of the other obliquely ; antenna? 

 long and setaceous, with from fifty to a hundred and fifty joints ; 

 mandibles short, but strong, horny, and toothed at the tip; 



