274 Mr. H. W. Bates' supplement to the 



Bembidium {Peryphus) eurygonum. 



B. oxyglymma affine et simillimum, seel differt corpore 

 ovato nee oblongo, tlioraceque magis transverso, basi 

 latiori et angulis posticis exstantibus acutis. Oblongo- 

 ovatum, nigro-aeneum, antennarum scapo rufo, pedibus 

 fusco-piceis ; thorace late quadrato, prope basin valde 

 sinuate- modice angustato, apud angulos posticos dila- 

 tato, angulis acutis, fovea basali simplici alutacea ; ely- 

 tris acute striatis (striis vix perspicue punctulatis) 

 omnibus sequaliter insculptis, 1 — 5 per apicem conjunctis, 

 2 apicem attingenti, 3 — 4 prope apicem conjunctis, 

 6 — 7paullulum ante apicem separatim terminatis. Long. 

 5| mm. 



Nagasaki ; Kumamoto. 



The relations of this species to B. oxyglymma are 

 peculiar. The two seem to be found together, and are 

 identical in colours and sculpture ; but they differ 

 distinctly in form, B. oxyglymma having the oblong, 

 parallelogrammical, outline of B. decorum and allies, 

 and B. eurygonum a broader and more ovate form, 

 approaching B. paludosum ; with this the thorax is 

 distinctly broader behind, being laterally produced at 

 the angles, which are acute. It is probable, neverthe- 

 less, that the two are varieties of one and the same 

 species. There are males and females of both forms. 



In striation the two species resemble B. planiusculum, 

 Mannerh., from N.W. America. 



Bembidium (Peryphus) sanatum. 



B. lunato, Dufts., proxime affine, sed differt thorace 

 multo angustiori anguste subcordato, postice valde 

 angustato ibique lateribus fere parallelis, angulis acutis, 

 fovea basali profundissima, punctata carinulaque elon- 

 gata juxta angulum. Elongatum subgracile, olivaceo- 

 seneuni politum, palpis, antennis (versus apicem leviter 

 infuscatis) pedibusque testaceo-rufis ; elytris immacu- 

 latis, punctato-striatis, striis, suturali marginalibusque 

 exceptis, ante apicem obsoletis ibique apice lsevissiniis. 

 Long. 5^- mm. 



Niohozan : near the snow in June. 



