548 Deutsch. Ent. Zeitschr. 1910. 



long as broad , widest behind the rounded Shoulders , then gra- 

 dually narrowed posteriorly. 



Sculpture : Frontal furrows parallel, broad and deep. Head 

 and thorax impunctate. Sides of thorax with a fine marginal 

 ridge ; median line slight ; basal furrows Single , narrow and 

 rather deep. Elytra wider than thorax, strongly punctate-striate, 

 each with 7 almost all over equally strong Striae, being only less 

 strong at apex ; 8*^ stria very strongly impressed, not punctured. 



Colour : Head and thorax greenish metallic , very shining. 

 Elytra straw yellow, with more or less well defined, dark shadows; 

 the figuration of these is : a triangulär shadow round scutellum, 

 a very irregulär, transverse, nearly M-shaped spot in the middle 

 or just behind middle, and a smaller transverse oval spot before 

 apex ; the figuration often more or less confluent. Antennae and 

 legs dusky yellow ; apical part of antennae and femora often 

 brownish. 



Patria : Prov. Mendoza (Argentina) ; not uncommon near 

 streams , rivers and „lagunas". Dedicated to the Danish Ento- 

 mologist, Mr. Chr. Engelhart, Copenhagen. 



Bembidium Petersen i n. sp. 



Length of body : 4^/^ mm. 



Shape : Thorax globose or strongly convex , a little wider 

 than head with eyes and a little broader than long , widest in 

 front of middle, with exceedingly strongly rounded sides in front ; 

 apex very strongly constricted , much less wide than thorax in 

 front and not half so wide as elytra across the Shoulders. Elytra 

 rather broad and short, not twice as long as wide together, widest 

 behind Shoulders, much wider than thorax. 



Sculpture : Head and thorax impunctate ; frontal furrows; 

 nearly parallel , short and broad ; median line of thorax feeble, 

 side margins finely ridged, basal furrows single and rather deep. 

 Elytra strongly punctate - striate , the 7 Striae equally strong,. 

 but being gradually finer behind , though still distinct at apex. 



Colour : Head and thorax shining greenish metallic dark^ 

 but especially the head with a pitchy brownish tinge. Elytra 

 pale yellow, speckled with black ; the blackish or brownish black 

 Spots flowing together in a transverse, rather sharply defined but 

 irregulär band across the middle , this band being strongly and 

 suddenly dilated near side margins ; behind this transverse band 

 and touching it at suture a strongly irregulär, semicircular bow 

 at some distance from apex ; behind Shoulders a blackish spot 

 between 4^^ and 6* stria and behind this and near the trans- 



