StaphylinidcB of Japan. 39 



This remarkable insect is, by the structure of its thorax 

 and the discoidal punctures thereon, closely allied to 

 P. montivagus, from which it differs, however, materially 

 by the very large eyes, occupying- the whole of the side 

 of the head, and by the more widely separated middle 

 coxre. The antennae are rather short and moderately 

 stout, of a yellowish colour. The head has a few punc- 

 tures quite at the hind angles, and two punctures placed 

 obliquely, close together between the eye and the insertion 

 of the antennas, otherwise impunctate. Thorax nearly 

 straight at the sides, but a little narrowed in front ; the 

 front angles deflexed and rounded, the punctures placed 

 much as in montivagus. Scutellum finely and not very 

 distinctly punctured. Elytra rather longer than the thorax, 

 black, with a broad red patch at the suture, and the hind 

 margin narrowly pale ; they are sparingly and obsoletely 

 punctured, and have each a row of four large discoidal 

 punctures. The hind body is sparingly punctured. The 

 legs are yellow. 



A single specimen found in dung at Nagasaki on the 

 llthof Aprih 



(This individual is, I think, a male, though it has the 

 7th abdominal segment beneath only slightly emarginate, 

 the front tarsi are strongly dilated : the affinities of this 

 insect Avith Quedius are quite remarkable ; there is no 

 stigmatic membrane to the prothorax.) 



\J 72. PhilonthuK spini]ies,n.^\). (Sectio 3, Er.) Niger, 

 elytris rufis; tibiis tarsisque testaceis, illis longius nigro- 

 spinosis. Long. 7 — 7^ lin. 



Mas, tarsis anticis dilatatis, abdomine segmento 7° ven- 

 trali apice exciso. 



Fem., tarsis anticis leviter dilatatis. 



Var., thorace serie dorsali 4-punctatQ. 



This species resembles P. nitidus, but is larger and 

 more robust, and is readily distinguished by the pale 

 tibijc, on which the long black spines are very conspicu- 

 ous, more particularly those siuTOunding the apex of the 

 four hinder tibiae. The antennfe are not in the least 

 thickened towards the extremity, and are entirely black. 

 The hind angles of the head are largely and very coarsely 

 ])unctured, and furnished with very long hairs. The 

 thorax is black and shining, a little rounded, but not 

 sinuate at the sides ; sometimes with the discoidal punc- 

 tiu^es placed as in P. ceneus, but generally with the third 

 from the front entirely wanting. The elytra are red, and 



