224 Transactions. — Zoology. 



apical spines. Tarsi without pads on their lower surfaces ; 

 the first joint elongated, longer than the fourth. No ocelli in 

 any of the New Zealand species. 



SYNOPSIS OP THE GENERA. 

 Group Ceuthophili. 

 Apical spines on the femora, when present, short, stout, and coloured. 

 Spines on the upper surface of the hind tibise usually remote from each 

 other, regular in size and in distance. 



Genus Talitropsis. 

 Femora with a single short apical spine, or none. Pore tibias with a 

 pair of inferior apical spines; middle tibite with a pair of inferior apical 

 spines and a single superior spine, on the inner side ; hind tibise with two 

 pairs of rather short apical spurs, nearly equal in length. 



Genus Ischyroplectron. 

 Fore and middle femora each with a pair of strong apical spines ; 

 hind femora with one. Pore and midd!'? tibise each with two pairs of 

 apical spines ; hind tibise with four pairs of apical spurs, of which the 

 upper-intermediate are much longer than the others. 



Genus Gymnoplectron. 

 Fore femora with one, middle and hind femora each with a pair of 

 short apical spines. Pore and middle tibise with two pairs of apical 

 spines ; hind tibise with four pairs, of which the upper-intermediate are 

 much longer than the others. 



Genus Pachyrhamma. 

 Fore and middle femora each with a single apical spine, the hind 

 femora with a pair. Fore and middle tibise with two pairs of apical 

 spines ; hind tibise with three pairs, of which the upper pair is much 

 longer than the others. 



Group Rhaphidophoe^. 

 Apical spines on the fore and middle femora, when present, acicular 

 and colourless ; none on the hind femora. Spines on the upper surface 

 of the hind tibiae irregular in size and distance, usually crowded. 



Genus Pleioplectron. 

 Fore femora with one, or two, and middle femora with two, apical 

 spines. Pore and middle tibias with two pairs of apical spines, of which 

 the superior is much the longer. 



Genus Neonetus. 



Fore and middle femora each with a pair of apical spines. Fore 

 tibise with a pair of inferior, and middle tibise with a pair of superior, 

 apical spines ; hind tibise with two pairs, of which the upper pair is much 

 the longer. 



Genus Isoplectron. 



Fore femora without apical spines ; middle femora with one only. 

 Fore tibise with an inferior pair of apical spines ; middle tibise with an 

 inferior pair, and a single superior on the posterior side ; hind tibise with 

 two pairs, which are short and nearly equal in length. 



Genus Pharmacus. 

 All the femora without apical spines. Pore and middle tibise with 

 an inferior pair of apical spines, and a single superior on the posterior 

 side ; hind tibise with two pairs, moderate in size, the superior the 

 longer. 



