42 
PAN-PACIFIC ENTOMOLOGIST 
Fig. 1. A. Dorsal aspect of Pristocelis irwini new species, male. B. Protibia of P. irwini 
showing the comb of stout spinules on the outer posterior border. C. Head of P. irwini, male, 
showing elongated occipito-temporal area (ot), mandible (m), and frontal cord (fc). 
Thorax .—Pronotum is large, transverse, oval, almost as wide just past 
the middle as the elytra at the humeri. At the widest point the lateral mar¬ 
gins, from above, curve abruptly. Lateral margins are minutely serrulate. 
Legs .—Protibiae expand abruptly from the delicate base, are slightly 
