1875.] J. Wood-Mason — On new or little-known species ofPhasmidse. 219 



slightly concave ; the operculum reaching almost to the apex of the basal 

 third of the terminal dorsal segment. 



$ . Legs all exactly as in the female ; the antennae, which are tomentose, 

 as long as the wings, and composed of 26 very distinct joints, all produced 

 into a point below at apex, when laid back reach quite as far as to the apex 

 of the 4th abdominal segment ; the tegmina extend to the middle of the 2nd, 

 the wings to the apex of the 7th abdominal segment. Abdomen, at first 

 very slightly and gradually, then more suddenly widening to a little beyond 

 the middle of the 3rd segment ; thence maintaining the same width to apex 

 of 4th, whence at first very gradually and afterwards more suddenly narrow- 

 ing to its extremity, the sides being slightly arcuate ; a faintly marked 

 pair of ocelli on the posterior half of 4th segment ; the three terminal 

 ventral segments carinate below, the last of them broadly rounded at 

 the tip and barely reaching the level of the end of the basal third of the 

 terminal dorsal one. 



$. Total length, 4 in. ; head, 4 lin. ; proth., 3J lin. ; mesoth., 5^ lin. : 

 metath., 6 lin. ; abdom., 2 in. -f- 7§- lin. = 2 in. 1\ lin. ; breadth of 3rd 

 segm. abdom. at angulation 20 lin. ; do. of 6th at base, 1 in. 4 lin. ; do. of 

 6th at apex, 10§ lin. ; width of post, lobe of ant. fern 3 lin. ; do. of ant. 

 lobe, 1\ lin. ; length of tegmina, 2 in. 7 lin., width of do. 10 lin. ; length 

 of wings, 1 in. 2 lin. 



$. Total length, 2 in. 9 lin.; head, 2 lin. ; proth., If lin. ; mesoth. 

 (measured below), 3f lin. ; metath. (measured below), 4-J lin. ; abd., 1 in. 

 5|- lin. -f- 4f lin. = 1 in. 10J lin. ; breadth of do. at base 4 lin. ; of 3rd 

 segt. at angulation, 8£ lin. ; of 5th at apex 7f lin. ; of 6th at apex 5 lin. ; 

 length of tegmina, 10| lin. ; of wings, 2 in. ; of antennas, 2 in. 



All the above measurements are taken from alcoholic specimens. 



Hab. — The female from South Andaman, where it was captured by 

 Captain Protheroe on his dining table, so that the females of this species 

 must possess some considerable powers of flight. The insect which I con- 

 fidently believe to be the male of this species was taken by Mr. W. Davison, 

 near Pahpoon, about 150 miles north of Moulmein, in the Sal ween country. 

 The acquisition of a male from Port Blair or of a female from Burmah will 

 alone decide whether these two insects have been legitimately paired or not. 



The female differs from that of P. siccifolium in having tolerably well- 

 developed wings instead of minute scale-like rudiments of such, in the- 

 shape of the abdomen, in which three instead of two segments go to form 

 the triangular termination, and by its less strongly serrated mesothorax ;, 

 and from that of P. Celebicum in the form of the external lobes of the fore 

 femora, which are semioval instead of angulated, and notably in the form of 

 the abdomen ; in which latter point the male differs most conspicuously from 

 that of the same species. 



