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DESCEIPTIONS OF A >fEW GENUS AND TWO NEW SPECIES OF 

 COLEOPTERA FROM JAPAN. 



BY THE EEV. H. S. GORHAM. 



Since the publicjitiou of my paper on the Enchmycliichp of Japan 

 in the February No. of this Magazine, I have seen, in Mr. George 

 Lewis's collection, two or three forms which either belong to this family, 

 or, like Si/mbiotes and Mi/ccfcea, may be associated with it. I now offer 

 a description of a genus belonging to the true Endomychidce. Another 

 interesting genus allied to the genera mentioned must wait for closer 

 investigation, and will probably require to be dissected. 



Family ENDOMTCHID^. 

 Tribe Dapsini. 



E-HABDUCHUS, genus novum. 

 Aniennarum clava articulo primo incrassato et interne dentnto, se- 

 qnentibus duobus multo latiore. Palpormn articulus ultimus fusiformis. 

 Prosternum retrorsum angustatum, coxas superans, medio concavum, 

 apice rotundatum. Mesosteryium oblongo-quadratuni. Pronotum lafe- 

 ribics margliiatis ut in Sfe7iotarso, bast lined transversa ivipresso, anguJis 

 posticis productis. Pedes lonqi, tarsi graciles, posteriores elongaii. 

 Corpus oblongum. Type R. denticornis, sp). n. 



The singular insect for which I propose the above genus w^ould 

 seem, by the structure of its antennae, allied to CEdiartJirus, G-erst., 

 and also to have a general affinity wdth Mycetina and Stenotarsus. The 

 remarkable form of the ninth joint of the antennae, however, and the 

 form of the thorax, combined with its long thin legs, are an associa- 

 tion of characters dissimilar to anything yet described in this group. 

 I regret having been unable to give the form of each part of the 

 mouth, there being but a single specimen, which is apparently a female, 

 the abdomen cons'sting of five segments. 



RiiABDucirrs denticornis, sp. n. 



Testaceus, sub-nitidus, puhe brevi puree vestitus, crebre at obsolete 

 punctatus, anfennis nigris, capite thorace pedibusque infuscatis. 



Long. 2 lin. 

 Oblong, head fuscous, crown smooth. Antennas more than half as long as the 

 body, entirely fuscous black, basal joint ovate, second short, about as long as wide, 

 3 a little longer and equal to 7 ; 4, 5 and 6 equal to each other, and shorter than 3 ; 

 joint 8 short, equal to 2 ; 9 equal in length to the two preceding, triangular, the 

 inner side with an acuminate tooth ; 10 smaller, triangular, internally acuminate at 

 the apex ; 11 elongate, rounded externally, the mner edge straight. Thorax widest 

 at the base, the posterior angles being produced outwards into an acn<o angle; the 



