RHYPAROSOMIDAE. 429 



slope, near each side, behind the middle, there is a pair of shorter ones ; 

 near the extremity there is a distant median pair of small nodosities, and 

 a single one at each side. 



Underside piceous, abdomen with somewhat curled, yellow, setiform 

 scales ; basal segment rather longer than the next, which is broadly grooved 

 along the middle, the suture between them is sinuous ; in the female the 

 5th has a broad shallow fovea, but the 2nd segment is unimpressed. 



Nearly allied to A. nodipennis (3605), more robust, with thicker legs 

 and more flexuous tibiae, the anterior, instead of being nearly straight, are 

 more arched above and sinuate near the middle on the outside, and medially 

 curved inwardly ; their tarsi are broader, and their claws distinctly appen- 

 diculate. 



In a specimen denuded with the point of a needle the thoracic sculpture 

 is seen to consist of slightly convex, very irregular, short rugae, and that of 

 the elytra to consist of subquadrate, rather coarse, serial punctures. 



Length (rostrum exclusive), 3 mm. ; breadth, Ifmm. 



ScarclifE and Mistake Basin, Canterbury. Five taken from vegetable 

 matter on the ground by Mr. T. Hall during October and November, 1913. 



Rachidiscodes gen. nov. 



Convex, medially narrowed and depressed. Rostrum arched, elongate, 

 a third longer than thorax, rather slender, parallel, slightly dilated at the 

 point of antennal insertion. Scrobes beginning before the middle, deep 

 there, obliquely prolonged underneath. Head short, globose below. Eyes 

 subrotundate, lateral, not prominent, with distinct facets, the space between 

 each and the thoracic apex equalling their own length. Thorax without 

 ocular lobes, elongate, oviform, apex and base truncate, the latter with 

 slightly raised margins. Scutellum absent. Elytra scarcely any wider 

 than thorax at the base, subpyriform, the height of the vertical posterior 

 declivity quite equals the length of the dorsum. 



Scape elongate and slender, incrassate near the extremity, inserted 

 before the middle, attaining the front of the eye. Funiculus 7-articulate, 

 2nd joint longer than the basal, 3rd and 4th oblong ; the others moniliform, 

 7th larger than 6th ; club moderately large, subovate, distinctly pubescent, 

 obsoletely articulate. 



Legs very elongate ; femora simple ; tibiae nearly straight, feebly 

 mucronate ; tarsi rather narrow, basal joint oblong, the penultimate cleft 

 almost to the base but not expanded, terminal longer than the basal. 



Prosternum emarginate, elongate, the coxae contiguous, very prominent, 

 situated near the base. Metasternum short. Abdomen elongate, basal 

 segment nearly double the length of 2nd in the middle, subtruncate between 

 the moderately distant coxae, its apical suture distinct, medially sinuate ; 

 5th transversely quadrate, subtruncate at apex, broadly foveate behind, 

 longer than the short 3rd and 4th combined ; 6th shorter, finely margined, 

 rounded behind, concave in the middle, much bent upwards. Palpi minute, 

 straight, quite visible. 



The type of this remarkable little weevil should be located between 

 Rackidisciis and Rkystheus. It most nearly resembles the former, but is 

 at once separable by its long slender rostrum. Rhysthetis is of subcylindrical 

 •outline, with hyaline eyes. 



