169 
Helix HochMteri Pfeiffer , a new land-snail from 
the South-Island , in life size. 
shells are mostly but small and insignificant ; they live very clan- 
destinely and have but recently been brought to light by the closer 
researches of science. The 
rivers which I had an oppor- 
tunity to examine , are in- 
habited by small and very 
peculiar species of Ilydrobia 
and by two kinds of Unio , 
large quantities of which arc 
caught by the natives with 
whom they constitute a chief 
article of food. 
Of crustacean, the number of species described are 56; of 
insects 265 species, belonging to 215 genera. Among them 179 
species Coleoptera , 11 Neuroptera , 18 Ilymenoptera, 13 llomoptera , 
11 Hemiptera , 55 Lepidoptera , 57 Diptera , and 21 Araclmida. The 
Orthoptera of New Zealand are characterized by this particular, 
that the majority of the species of all orders possess either no or- 
gans of flight, or but very stunted ones; which peculiarity was 
pointed out already by Erichson in speaking of the fauna of Tas- 
mania; which, however, occurs to a far less degree in Australia. 
The largest beetle , which I collected myself in the woods on 
Weta (Deinacrida heteracantha), female in life-size. 
