Lazwencc B rimer 



c. Prosternum not provided with roughened bHsters or protuber- 

 ances, except in the genus Pscudodatames, in which the an- 

 tennae are very short. 

 d. Antennae much shorter than the anterior legs, very rarely of 

 equal length (Xylica) [genera African and Madagascaren]. 



Bacillidae. 

 dd. Antennae as long as or longer than the anterior legs [genera 

 American and a single one Madagascaren]. 



Pygirhynchidae. 

 cc. Prosternum provided with two roughened swellings or protuber- 

 ances between the coxae. Antennae much longer than the 

 anterior femora [genera Asiatic and Polynesian]. 



Obrimidae. 



bb. Median segment longer than, or of equal length with, the meta- 



notum. Body often winged. 



c. Antennae of males and females equal, elongate. Mesonotum 



longer than wide. Elytra of female, if present, abbreviated. 



Abdomen with lateral margins not totally foliaceously dilated. 



d. Claws of the feet finely pectinated. Tegmina, if present, 



filiform or stipuliform [Old World genera]. 



Ascepasmidae. 

 dd. Claws smooth. Tegmina, if present, lobiform, very rarely 

 filiform. 

 e. Body, together with the legs, sometimes armed with a 

 single spine or tooth. Femora usually without an apical 

 spine above. Tibiae with apical portion entirely un- 

 armed [genera often American]. 

 /. Abdominal segments of male quadrate, of female trans- 

 verse. Legs unarmed, femora neither compressed nor 

 foliaceously dilated. Body apterous, very rarely 



(Dccidia) winged Anisomorphidae. 



//. Abdominal segments very much elongated (in the fe- 

 male at least quadrate, in the male much longer than 

 wide) or the anterior femor compressed or folia- 

 ceously dilated Phasmidae. 



g. The four posterior femora without an inferior mid- 

 dle carina or obtuse, unarmed. 

 h. Femora smooth or faintly carinated. Ocelli 



always present Stratoclinae. 



hh. Anterior femora at least obliquely compressed, 

 acutely and distinctly carinated. Ocelli miss- 

 ing Prisopinae, 



gg. The four posterior femora furnished with a distinct 



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