1054 COLEOPTERA 



backwards as far as the hind margin of the eyes, posterior foveae 

 small ; eyes prominent. Antennce about as long as the head and 

 thorax ; basal joint large, cylindric, twice as long as but not broader 

 than the bead-like second joint; third very small, hardly more than 

 half the size of the preceding one ; fourth and fifth abruptly enlarged, 

 transversal, equal; joints 6-8 decrease, the sixth a little smaller 

 than the fifth, the eighth rather larger than the third ; ninth and 

 tenth transverse, obviously smaller than the fourth or fifth ; eleventh 

 moderately large. Thorax a good deal rounded anteriorly, with a 

 large fovea at each side behind the middle, the median basal one 

 also large, the two near the basal margin quite punctiforrn and 

 small. Elytra oblong, slightly narrowed towards the front ; with 

 well-marked sutural striae ; the intrahumeral impressions consist of 

 a basal puncture and elongate depression, and between these and 

 the suture, at the base, there is a distinct puncture. Hind-body 

 apparently impunctate. Tibice arched externally. The three basal 

 segments, underneath, densely ciliate. 



The enlarged intermediate articulations of the antennas will at 

 once lead to the recognition of this species. It is unusually dark in 

 colour, even the wing-cases being without the least tinge of yellow. 



Length, 1-| lines ; breadth, f line. 



Moeraki. Mr. Sandager ; one example. 



Exeirarthra. 



Nov. gen. 



Form like Sagola, but exhibiting the following disparities in 

 structure : 



Terminal joint of the maxillary palpi oblong-oval, and not fur- 

 nished with a distinct appendage. Tarsi inarticulate, basal joint of 

 the anterior minute ; second large, cleft nearly to its base, so as to 

 form two well-developed, elongate lobes, between w r hich the long 

 apical joint is inserted ; provided with two equal, curved claws. 



As is the case with many other important forms, only one speci- 

 men is extant ; dissection therefore is out of the question. I believe 

 that the intermediate joints of the palpi will prove to be dissimilar 

 to those of Sagola, and it may be that other structural differences 

 will be found to exist when other examples shall be found. How- 

 ever, one thing is certain, and that is, that the peculiar structure of 

 the second tarsal joint is, of itself, sufficient to justify the isolation 

 of this genus, not only as distinct from Sagola, but also from every 

 other member of the entire family of Pselaphidce. Although this is 

 so, the natural affinities of the insect clearly point out its relation- 

 ship to Sagola, and it must therefore be placed near to that genus ; 

 no other nearly-allied group displays characters such as would in- 

 dicate any nearer relationship. 



1885. E. enigma, n.s. Elongate, subdepressed, clothed with 

 greyish-yellow hairs, which, however, are nearly absent on the head, 

 but conspicuous enough on the hind-body ; shining, red, legs and 

 antennae fulvous, tarsi yellow. 



