Geodephagous Coleoptera of Japan. 259 



tripunctato. Tarsis anticis articulo quarto bilobato, lobis 

 angustis, sat longis ; intermediis bilobato, lobo exteriori 

 longiori; posticis emarginato. Long. 10 — 12 mm., 3 , ? • 



Nikko ; Awomori, under forest-trees. 



Colpodes mutator. 



C. Bentonis affinissimus, differt solum; 1, colore nigro 

 elytris vix seneo-tinctis vel iridescentibus ; 2, thorace 

 antice paullo minus late rotundato margineque explanato- 

 reflexis angustiori et angustius rufescenti; 3, elytris 

 prope apicem paullo minus profunde sinuatis ; 4, tarsis 

 anticis minus longe bilobatis. Long. 11 — 12 mm., $ , ? . 



Fukushima. 



Tbe slight differences above pointed out between this 

 and the preceding are constant in the tolerably numerous 

 series of both which I have examined. The form of the 

 thorax varies a little ; but it is always less broadly 

 dilated anteriorly, and the dilatation is more in front, 

 so that the posterior narrowing is longer and more 

 gradual, the posterior angles being in both species 

 almost equally projecting and acute. The colour is 

 uniformly pitchy-black, shining, with a very narrow dull 

 tawny edging to the thorax and elytra. Tho epipleurse 

 and femora are always dark like the under side of the 

 body ; the elytra are slightly tinged with bronze-green 

 or are iridescent. 



Colpodes integrates. 



C. Bentoni et mutatori proxime affinis sed differt elytris 

 apice vix perspicue sinuatis. Elongatus sat depressus, 

 castaneo-fuscus, elytris aurato- vel viridi-seneis, antennis, 

 palpis, elytrorum margine pedibusque (femoribus ob- 

 scurioribus) piceo-rufis ; thorace fere ut in C. bentonis 

 cordato, prope basin valde angustato, sed angulis pos- 

 ticis minus productis, fere rectis, margineque baud per- 

 spicue vel vage rufescenti ; elytris regulariter ovatis, 

 versus basin angustatis. Long. 12 mm. 



Miyanoshita. 



The tarsal grooves, which are deep and well marked, 

 especially on the middle tarsi in C. Bentonis, and rather 

 less so in C. mutator, are in the present species scarcely 

 visible. 



