1906.] NATURAL SCIENCES OF PHILADELPHIA, 279 



DESCRIPTIONS OF FIVE NEW SPECIES OF ORTHOPTERA FROM TONKIN. 

 BY JAMES A. G. REHN. 

 PHASMID^. 



Phryganistria grandis n. sp. 



Type: c? ; Tonkin, Indo-China. [A. N. S. Phila.] 



Allied to P. sarmentosa Westwood from Sylhet, but differing in the 

 larger size, the greater number of medium-sized spines on the ventral 

 margins of the median and caudal femora, and the presence of a strong 

 distal spine on each of the same margins, as well as the proportionately 

 slenderer abdomen. 



Size very large; form very slender; surface glabrous. Head about 

 equal to the pronotum in length, somewhat narrowed caudad, and with 

 the caudal section of the occiput with foiu- longitudinal subparallel 

 impressed lines ; eyes rather prominent, globose ; ocelli absent ; antennse 

 when extended caudad reaching nearly to the caudal margin of the 

 second sCbdominal segment, first antennal joint moderately depressed. 

 Pronotum distinctly longer than broad; ceiDhalic margin slightly 

 arcuate-emarginate, caudal margin subtruncate; transverse depression 

 slightly bent caudad in the middle, a faint trace of a longitudinal de- 

 pression in the cephalic section, none in the caudal section. Mesono- 

 tum but little shorter than the metanotum, median segment and first 

 segment of the abdomen nearly seven times the length of the pronotum, 

 subequal except in the caudal fourth where it is slightly and gradually 

 expanded. Metanotum (including median segment) slightly more 

 than two-thirds the length of the mesonotiun ; median segment slightl}^ 

 less than a third the length of the remainder of the metanotum; 

 cephalic half subequal, evenly expanding in the caudal half. Abdo- 

 men exceeding the head and thoracic segments in length by more 

 than the length of the head, as a whole subequal in width, the 

 slight enlargement of the segments at their articulation with con- 

 tiguous segments giving the abdomen the appearance of a sec- 

 tion of bamboo ; fu'st segment very slightly"^ longer than the head 

 and pronotum together, second and third subequal and slightly longer 

 than the first, fourth and fifth subequal and slightly longer than the 

 second and third, sixth segment two-thirds the length of the fifth, 



