"NEW ZEALAND CARABIDA. 287 
THE NEW ZEALAND CARABIDA* 
BY CAPT. T. BROUN, M.ES. 
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[The numbers on the margin are in continuation of those in Part II. 
When insects are referred to by numbers, these numbers correspond with those iu 
Parts I. or II.] 
; HYDROBIIDA. 
1346. Rygmodus puncticeps, n. sp.—Ovate, convex, shining ; 
head and thorax black, legs and basal joints of antenne slightly 
rufescent, club opaque, elytra greenish blue. 
Head narrowed anteriorly, with raised margins, densely and 
distinctly but not coarsely punctured ; clypeus nearly truncate. 
Prothovax transverse, narrowed towards the front, finely and 
closely punctulated, bi-foveate at base. Scwutellwm elongate, tri- 
angular, almost imperceptibly punctulated. /ytra convex, 
punctate-striate ; interstices convex, closely punctulated. Legs 
elongate. Underside dull black, closely and finely sculptured. 
Most nearly approaches A. cyaneus ; differs from it in having 
longer antennz, a more obviously punctured head, with three 
more or less distinct foveze on the vertex, more finely sculptured 
thorax, and the elytra, instead of presenting a nearly even slope, 
have deeper strize with elevated intervals. 
Length, 234-314 ; breadth, 1%4-13 lines. 
dhe insect-was found by T. F.. Cheeseman, F.LS., on. Aez- 
phylla lyallt, growing at an elevation of about 5000 feet, on Mount 
Arthur. 
PSELAPHID&. 
Gastrobothrus, n. gen.— Maxillary palpi quadri-articulate ; 
_ basal joint minute ; second elongate, arcuated, gradually incras- 
sated ; third stout, as long as broad, sub-globose; fourth large, 
ovate, as long as, but stouter than second. Head moderate, 
narrowed behind. J/andzbles robust, acute at apex, dentate in- 
wardly. Azzenne distant, inserted in lateral cavities in front of, 
but not close to the eyes; Ist joint stout; 2-9 cylindrical ; 
2nd shorter than 3rd; 3-7 about equal; 8th. short, sub- 
quadrate, gth larger than the preceding one; 1oth distinctly 
larger than goth. Ayes small, prominent, coarsely facetted. 
Prothorax sub-globose, with a large fovea at each side, rather 
broader than head. “&/ytra not much longer but much broader, 
than thorax, considerably narrowed towards the base, deeply 
sinuated behind. //z2d-body broad, marginated, apical segments 
deflexed. Abdomen large, the intermediate segments deeply 
excavated, appearing quite hollow ; the inner margin of the pen- 
ultimate widely emarginate, the extremities forming two corneous 
protuberances ; apicalsegmententire. Legs stout, tibiz flexuose ; 
* Read before the Auckland Institute, June 11, 1881. 
