210 MANUAL OF NATUEAL HISTORY. 



domen with two jointed appendages at tip. 

 Omnivorous ; nocturnal. 



IT. SUB-ORDER. RAPACIOUS-ORTHOPTERA (Raptoria). 



Legs long, formed for walking, the fore-legs larger 

 than the others, formed for seizing their prey ; fore- 

 wings long, horizontal when at rest. 



2. FAMILY. Leaf -Insects (Mantidse). Antennae in- 



serted between the eyes, usually slender and 

 filiform ; eyes large, on sides of head ; head 

 vertical, exposed ; face triangular ; ocelli 

 three, in a triangle in middle of forehead ; 

 upper lip entire ; mandibles horny, trigonal, 

 with acute teeth at tip and a strong tooth 

 at inner margin ; thorax produced and nar- 

 rowed in front, forming a narrow neck, to 

 which the large raptorial fore-legs are at- 

 tached ; hind legs long, slender. Predacious ; 

 found on plants and trees, where they re- 

 main stationary with the fore- legs raised pre- 

 pared to seize any insect that comes in their 

 way. 



III. SUB-ORDER. WALKING-ORTHOPTERA 



(Ambulatoria). 



Fore-legs of the ordinary form, fitted for walk- 

 ing ; hind-legs not saltatorial ; fore- wings of small 

 size. 



3. FAMILY. Stick - Insects (Phasmidse). Antennae 



usually long, slender, many-jointed, placed 



