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), 3mm. ; breadth, 12 mm. 
Scarcliff 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 
Rachidiscus and Rhystheus. It most nearly resembles the former, but is 
at once separable by its long slender rostrum. Rhystheus is of subcylindrical 
outline, with hyaline eyes. 
