ANISODACTi'LIDArC. 85 



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Group Anisouactvliuae. 

 Taenarthrus gen. nov. 



Body a}'teious, subdepressed, and glabrous. 



Mentum large, subquadrate, medially bifid and bisetose in front; 

 lateral lobes divergent and dentiform at the extremity. Palpi elongate 

 and filiform; basal joint of the maxillary short, 2nd somewhat curvate, 

 thicker and longer than the next, which is a little shorter than the 

 terminal; 2nd joint of the labial bisetose, the 3rd, like the 4th of the 

 maxillary, obtuse at the apex. Mandibles moderately elongate, curved 

 and acute at the extremity, broad avid deeply concave at the base, with 

 a single seta in the scrobe. Antennae filiform, reaching backwards to 

 the shoulders, densely pubescent from the 5th joint onwards, the basal 

 four glabrous; 1st joint cylindrical, as long as the 3rd but thickei-, 

 2nd twice as long as broad, 4th rather shorter than contiguous ones. 

 Eyes prominent. 



Legs elongate, the hind pair longer and more slender than the others, 

 femora simple_j tibiae with numerous spiniform setae, the front pair 

 thickest and emarginate at the inside. Tarsi setigerous at the sides, 

 the anterior with sponge-like vestiture underneath the dilated basal three 

 joints, which are cordiform, the 2nd slightly broader than the 1st, 4th 

 narrow, deeply excavate in front, Avith its inner lobe distinctly more 

 prominent than the outer; the intermediate pair with triangular arti- 

 culations, the basal nearly as long as the 5th, the basal three with more 

 or less spongy soles, the outer angle of the 4th prolonged; the posterior 

 pair elongate and more slender, the outer angle of the penultimate 

 joint rather more prolonged than that of the middle pair; claws simple. 



Head about as long as the thorax but not quite as broad. Labrum 

 t)-ansverse, feebly emarginate, with 6 setigerous punctures. Forehead 

 subtrunctate and distinctly limited, with a pair of frontal setigerous 

 punctures. Thorax without marginal setae, quadrate-cordate, its apex 

 subtrunctate but with somewhat prominent angles; the base widely but 

 not deeply incurved so that its angles appear to be directed backwards. 

 Scutellum rounded behind. Elytra ample, slightly Avider than thorax at 

 tlie base, thrice its length nearly, curvedly narrowed but not at all 

 sinuate behind, with obtusely rounded apices, Avhich, however, do not 

 cover the terminal abdominal segment. 



The type of this genus is quite unlike that of any other in Noav 

 Zealand, and I fail to find any similar form amongst my European or 

 exotic Carabidae. The peculiar lobe-like prolongation of the penulti- 

 mate joints of the tarsi, as well as the structure and vestiture of the 

 antennae, aj'e almost identical with those of Chaudoir's genus Loxoincrus 

 from our subantarctic islands, but in Taenarthrus the mentum is bifid, 

 the mandibles near the base are more expanded and broadly concave 

 with raised lateral margins, the thorax is different, its posterior angles 

 particularly, and the pygidium is exposed. Not\vit)istanding tliese dis- 

 parities, I consider Loxomerus the nearest ally. 



3392. Taenarthrus philpotti sp. nov. 



Shining, nigrescent; antennae, ))alpi, and tarsi piceo-iufous. 



Head nearly smooth, Avithout definite impressions; a distinct lateral 

 plica extends from the forehead to the eye, and alongside the eye there 

 is a narrow groove, with a setigerous puncture near its terminal 

 portion. Thorax nearly plane, Avith Avell-developed, someAV'hat re- 

 flexed, lateral margins and moderately broad cliannels; its sides are 



