PselapliidcE and ScydmcenidcB of Japan. 113 



impunctato, medio canaliculato, lateribus impresso ; ely tris 

 fortiter minus crebre punctatis. Long. | lin. 



Mas (?), abdomine segmento primo dorsali, medio 

 deibrmi, apice tuberculo compresso valde elevato in- 

 structo. 



Antenna3 moderately long, rather slender; 1st joint 

 short, 2nd joint about as long as exposed portion of 1st, 

 but more slender; 3rd joint shorter and thinner than 

 2nd, joints 3 — 8 differing little from one another ; joints 

 9 — 11 forming an elongate club, the individual joints 

 of ■which are much divided from one another. Eyes 

 prominent, rather large. Head, including the eyes, scarcely 

 so broad as the thorax, impunctate and shining, witli a small 

 fovea on each side near the eyes ; it is elevated on each side 

 over the insertion of the antenna?, between the elevations 

 rather depressed and roughened. Thorax scarcely so long 

 as broad, greatly narrowed behind, Avith a small fovea on 

 each side, near the front margin ; the middle deeply chan- 

 nelled, and there is also a longitudinal impression near 

 each side, these connected by a transverse impression 

 placed very near the base. Elytra longer than the thorax, 

 with the humeral angles prominent, sparingly but dis- 

 tinctly and coarsely punctured, each with a sutural stria 

 and a short basal stria in the middle. The legs are long, 

 the tibias slender, the hind femora with the basal half very 

 slender, and the apical half abruptly incrassated. 



Nagasaki ; a single specimen. I believe it to be a male 

 on account of the very peculiar structure of the hind body. 

 The basal dorsal segment is elongate, furnished in the middle 

 with a naiTow, curved, transverse depression ; this is limited 

 behind by a sharply elevated line, and also obscurely divided 

 into two parts by a small elevation in its middle ; beyond 

 this impression the segment is profoundly impressed, and 

 from the dejDth of the impression projects a very large, 

 laterally compressed tubercle ; the lateral portions of the 

 segment are a little flattened and dilated, and have a 

 peculiar roughened (glandular) surface. The following- 

 segments are so inflexed as to be invisible from above : seen 

 from behind the 2nd and 3rd are extremely short, while 

 ^the two last (4th and 5th) are moderately and about equally 

 lo^g : the segments on the under surface are reduced to 

 mere rings. 



10. Batrisus angnstus, n. sp. Elongatus, angustus, 

 TRANS. ENT. SOC. 1874. — PART I. (FEB.) I 



