in the British Museum. 443 



additional small spines between the three Uxrg-er ones on the 

 sides of each abdominal segment. 



Hab. Eossel Island, Louisiade Archipelago. 



The largest and broadest species known. 



Earycantha sijia^ sp. n. 



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



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

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

 and two smaller ones behind tliese, nearer together; sometimes 

 a pair of tubercles nearer the front" ; pronotura with 2 large 

 lateral spines in front and 1 behind ; raesonotura 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 raesopleara towards the hinder end ; lateral 

 spines of metanotura nearly as in E. Willeyi, 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 wiiich 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. Willeyi ; 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 metanotum 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. Willeyi {inter alia) by 

 the conspicuous pair of spines in front of the mesonotum. 



Subfam. XI. IIeteboftebygin^. 



Genus Heteroptekyx, Gray. 



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

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

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

 ytal founded his genus Leocrates. 



