K. I. POCOCK 



ing backward^; from the fuscous colouring of 



the cylindrical half harschlL 



b'"- The first tergite not wholly flavoiis, either 



black in front or black all over, at least half 



of the area lying in front of the sulcus on the 



keel-bearing portion fuscous. 



a'^ First tergite ^except for the keels) fuscous, 



the rest fuscous at least as far back as the 



sulcus; side margins of keels less thickened. 



a}* Antennae and legs fulvous; lateral crest 



above the legs forming a continuous ridge 



to the middle of the body and visible to 



about the end of the body oatesli (c/). 



6'* Antennae and legs infuscate, inferior 

 lateral crest forming a comjjlete ridge 

 only as far as the S"""* segment, entirely 

 vanished in the posterior half of the hoAy fasco-collar is {'^). 

 6" First tergite fuscous in front: border of 

 the keels very much thickened, 

 a" Terga very dark, the transverse tlavous 

 band reduced to a median stripe or elon- 

 gate spot \vhich is cut ofi^ from the fla- 



vous patch on the keels gestri 



b"^ Dorsal surface much lighter, the terga 

 fuscous only on the area in front of the 

 sulcus .... insalaris, olivicola, inonticola, palonensis. 



Genus Prionopeltis, nov. 



Allied most nearly to Orlhomorpha , but differing in having 

 the keels of the 2"*^ segment higher than those of the 1^*, 

 which are well developed, and only as much lower than those 

 of the 3'''' as the 3''^ are lower than the 4*''; the keels all den- 

 tiform or horn-like. The area that bears them furnished with 

 an anterior and a posterior row of tubercles. 



Legs and mitennae very long and slender. 



