1887.] JAPANESE ENDOMYCHIDiE. fi49 



3. Panamomtjs brevicornis, n. sp. 



Ferruginevs, prothorace parce sat fortiter punctato, disco nigro- 

 piceo ; elytris punctato-striatis, disco subfasciato, nigro-piceo ; 

 antennis breviusculis. Long. 2j millim. 



Hah. Main Island : Miyanoshita. 



Allied to P. lewisi, the thorax is rather less bulky, with the sides 

 more sinuate; the basal sulci are obsolete, not produced in finely 

 impressed lines upon the disk, as in P. leivisi, the punctuation much 

 more sparse and more deep and distinct. The antennae shorter, with 

 the joints succeeding the basal one shorter and more bead-like. 



The elytra are more pointed behind, and the punctures of the 

 strise larger and deeper, especially near the suture. One specimen 

 only was obtained, in spring, at Miyanoshita. 



Ph-eomychus, n. gen. 



I propose this new genus for Endomychus rufipennis of Motschulsky. 

 This species differs from typical species of Endomychus, not only in 

 general form, being more parallel, and having the thorax more quad- 

 rate, not narrowed in front, in the peculiar way of E. coccineus, &c., 

 but also by having secondary sexual characters in the front tibise, 

 and by the presence of a stridulating-organ between the front 

 margin of the pronotum and the head, which bears a file. 



I do not know any other species of the allied genera thus character- 

 ized at present. 



1. Ph^omychus rufipennis, n. sp. (Plate LIII. fig. 3.) 



Endomychus rufipennis, Motsch. Etudes Ent. 1860, p. 18. 



iiTffJ. Main Island : Nikko. Yezo : Hakodate. 



The tibise of the front legs in this species are widened and com- 

 pressed from below the middle, so as to give the idea of an obsolete 

 tooth at that part. The prosternum is somewhat narrower at the 

 tip of its intercoxal process, and passes the coxse further than in 

 Cyanauges, to which genus it is otherwise more allied in form than 

 10 Endo7nychus. I think it possible that the insect described by me 

 as Endomychus bicolor is congeneric with this species ; as, however, I 

 have not the type for com.parison, and had not seen a male, I can 

 only associate it doubtfully with it. I think it not improbable 

 that some other Indian species will prove specifically distinct from 

 the Japanese species which are closely related to them, and 

 this appears to be so in this instance. The metasternum as well as 

 the abdomen is red in P. rufipennis, whereas the metasternum was 

 black in E. bicolor. 



Mr. Lewis met with many specimens of this insect at iSlikko in 

 June 1880, and at Hakodate in August, where it occurs on old logs 

 and under planks. 



On the front margin of the pronotum of both sexes of this species 

 is a depressed, prominent, and semitransparent point, which acts on 

 a corresponding file on the base of the head as a stridulating-organ. 

 At present I have not met with this character in any Cyanauges or 



