402 Mr. F. Smith on new Species 



L. — Description of a new Species of Freshwater Crayfish from 

 New Zealand: By F. W. Hutton, F.G.S., C.M.Z.S. 



Paranephrops setosus, sp. nov. 



Carapace with a strong transverse furrow and two longitu- 

 dinal waved furrows behind it ; centre polished, with minute 

 impressed dots ; sides thorny, with many short spines projecting 

 forward. Beak reaching beyond the pedicel of the inner an- 

 tennse, broad, flattened, and rather hollowed out above, with 

 four teeth on its sides and two teeth at the sides of the base ; 

 a slight median ridge behind^ which extends to the anterior of 

 the two spines at the sides of the base of the heak. Abdominal 

 segments smooth above, the sides obtusely angled. Caudal 

 appendages striate at the ends ; middle tail-piece single, the 

 spine one third from the end. Lamellar appendages of the 

 outer antennge extending slightly beyond the thickened basal 

 joint, and with a strong spine close to their base. The first 

 two joints of the arms with two rows of spines inside ; wrists 

 spined all round ; hands spined on the sides and below, and a 

 central row of spines outside ; outside covered loith distant^ 

 long, stiff hairs, the tips of which are often split', hands longer 

 than the fingers, which are nearly straight and tuberculated 

 inside, slightly curved at the points, and spinous on the outer 

 edge. Legs slender, the claws straight, they and the last 

 joints slightly hairy ; order of their length 2, 3, 4, 1. 



Olivaceous brown, reddish on the centre of the carapace and 

 first and second abdominal rings ; below paler, tinted with 

 green round the base of the legs and on the abdominal rings. 

 Spines and tubercles of the hands and fingers black, with 

 yellow tips ; spines on the carapace black. Length 5*4 inches. 



Hah. Stream near Invercargill, Province of Otago ; and 

 the river Avon, near Christchurch, Canterbury. 



LI. — Descriptions of new Species of Fossorial Hymenoptera 

 in the Collection of the British Museum. By Frederick 

 Smith, Assistant in the Zoological Depai-tment of the 

 British Museum. 



[Continued from p. 300.] 



Family Nyssonida. 



Genus Larra, Klug. 



Larva agilis. 



Female. Length 4J[ lines. Black, with yellow spots and 



