in the British Museum. 443 



additional small spines between the three larger ones on the 

 sides of each abdominal segment. 



Hob. Rossel Island, Louisiade Archipelago. 



The largest and broadest species known. 



Eurycantha s/Jia, sp. n. 



Long. corp. 104-129, lat. mesonoti 18-20 mm. 



Male. — Mahogany-brown, rather shining; head with two 

 large spines behind and rather within the level of the eyes, 

 and two smaller ones behind these, nearer together ; sometimes 

 a pair of tubercles nearer the front; pronotum with 2 large 

 lateral spines in front and 1 behind ; mesonotum with 2 

 small central spines on the front edge and about 8 moderate- 

 sized spines on the upper lateral margin, but only 2 or 3 

 small ones on the mesopleura towards the hinder end ; lateral 

 spines of metanotum nearly as in E. WiUeyi, but more 

 numerous; abdomen with 3 lateral spines on each segment, 

 the first placed rather higher than the others, which stand on 

 a carina on which other rudimentary spines are often placed ; 

 upper surface of thorax and abdomen with scattered tubercles ; 

 a transverse row of small terminal spines on most of the 

 abdominal segments, best developed on the hinder ones ; a 

 distinct median carina on the three segments before the last, 

 rising into a strong spine at the extremity. Legs armed 

 nearly as in E. WiUeyi ; the large spine less curved. 



Female darker brown, but otherwise very like the male ; 

 mesopleura with more numerous small spines below the larger 

 ones ; spines of the metauotum smaller than in the male ; 

 abdomen with the hinder half carinated to the extremity ; 

 hind femora beneath with 4 or 5 spines (before the terminal 

 ones) of nearly equal length. 



Ilab. Thursday Island. 



Appears to be a common species. Belongs to the group of 

 E. calcarata, Luc. Differs from E. calcarata in the smaller 

 and less numerous spines, and from E. WiUeyi (inter alia) by 

 the conspicuous pair of spines in front of the mesonotum. 



Subfam. XI. IJet£roptebygix.z. 



Genus HETEROPTEEYX, Gray. 

 The type of this genus is Phasma dilatata, Parkinson, the 

 male of which is, 1 believe, Phasma (Eurycantha) graciosa, 

 Westw. (not at present represented in the Museum), on which 

 Stal founded his genus Leocrates. 



