1920] 



Chamberlin — A New Genus of Megistocephalidw 



145 



Anarrup nesiotes sp. nov. 



Body in general light brown. Head and prehensorial segment 

 and typically also the first two tergites chestnut. Legs fulvous. 



Head widest at level of frontal suture, a little narrowing to some 

 distance caudad of middle and the posterior end semicircularly 

 rounded. Head tj^^ically near 1.44 times longer than wide. 



Non-areolated portion of clypeus extending forward to anterior 

 margin at middle, a narrow areolated band along antennal socket 

 on each side; anterior half of non-areolated area with numerous 

 setse. 



Median piece of labrum very narrow, overlapped on each side 

 by lateral piece, the exposed part linear. Each lateral piece con- 

 vex over mesal region, the mesal angle rounded, scarcely projecting; 

 margin smooth. 



Fig. 1. Anarrup Nesiotes, sp. nov. 

 Head and prehensors, dorsal view. 

 X 12. 



Fig. 2. Anarrup Nesiotes, sp. nov. 

 Maxillae, ventral view, witli right pal- 

 pus omitted, x 24 



Mandible wdth ten lamellae. The first bears four teeth which are 

 much stouter than those of the others. The median lamella bears 

 about forty teeth, of which those of the distal region are very long 



