StaphylinidcB of Japan. 19 



t© the same parts in analis. Elytra miicli longer than the 

 thorax, black, with a large humeral spot, reaching nearly 

 to the suture, yellow, the apical margin also paler. Each 

 with seven distinct and regular rows of setigerous punc- 

 tures, one being close to the suture, and another contiguous 

 to the outer margin, about 1 1 or 12 punctures in each row. 

 Hind body coarsely and rather closely punctured, except 

 the basal segment, which is smooth in the middle ; the 

 pubescence very distinct and rigid. Legs yellow. 



In the male the front tarsi are evidently dilated, and the 

 7tli segment of the hind body is, on the under side, pro- 

 vided near the extremity with a deep longitudinal impres- 

 sion, the sides of which are elevated and roughened. 



In mushrooms at Nagasaki. 



39. Megacronus princeps, n. sp. Niger, antennarum 

 basi apiccque, et pcdibus testaceis ; elytris rufis, seriebus 

 septem punctorum impressis. Long. 3^ lin. 



Allied to JSI. setiger, but rather broader, with the elytra 

 entirely red, and the antennae rather longer and more 

 slender. Antennte distinctly thickened toward the ex- 

 tremity, the two basal joints yellow, the 3rd ])itchy yellow, 

 4 — 9 pitchy, the two apical joints again pal« yellow. Palpi 

 yellow. Head small, not lialf as broad as the thorax, 

 shining black, impunctate. Thorax broader than long, 

 rather broader than the elytra, a little narrowed in front, 

 shining black, impunctate, except for a few punctures 

 placed close to the side and front margins. Elytra longer 

 than the thorax, shining red, each with some regular rows 

 of impressed setas-beariug punctures ; in the sutural row 

 there are about thirteen, in the others ten or eleven punc- 

 tures. Hind body black, with the margins of the seg- 

 ments a little reddish, that of the 6tli segment more 

 broadly so than the others ; the basal segment is almost 

 impunctate, and the following one is more sparingly punc- 

 tured than the others, which are rather coarsely and closely 

 punctured. Legs yelloAv. 



Kawatchi, October, 187L A single female example. 



40. Bnjoporus Lewisius, n. sp. Elongatus, angustus, 

 rufus, capite piceo, elytris nigris apice rufescentibus, 

 irregulariter subseriatim punctatis, abdomine sat crebre 

 punctato, evidenter setigero. Long. 2j lin. 



Antennae yellow, rather long and stout, distinctly thick- 

 C 2 



