(Page 489) 

 strongly thickened, the latter on inner side undulated and nearest the 

 base densely haired, the middle and hindmost tibiae on inner side at 

 tip with a short spine, the hindmost tibiae a little beneath the middle 

 with a small angular or dentiform protrusion, and beneath this slight- 

 ly incurved. Uetasternum flatly depressed with long grayish-yellow 

 hair; the first five ventral Joints finely carinated in middle-line, 

 and the fourth furthermore feebly impressed; the fifth (Fig. 147 a) 



Fig. 147. Hind leg of Stenus Juno Fabr. 6" . 



Fig. 147a. Abdominal last four ventral joints in Stenus Juno Fabr.^ 1 . 



behind the abruptly interupted, sharp carina, is deeply cavate, smooth- 



(Page 490) 

 ened, and at tip with a rounded incision, of which the corners are den- 

 tiformly entad bent; the sixth ventral joint is at middle slightly 

 impressed, smoothed and at tip deeply incised. 



Distributed in Europe, North Asia and North America, and common 

 everywhere in this country on damp ground. 



6. St. ater Mannh. 



(Mannh. Brach. 42; Erichs, Kaf. Mk. Br. I, 534; >Jen. Spec. Staph. 

 696; Kraatz Ins. D. II, 749; Thorns. Skand. Col. II, 213; Rey Bre'vip. 

 1884, 59; Janglb. Kaf. U. II, 561). 



From Juno, to which it is very closely allied and completely like 

 in color, it is separated especially by the following details: 



It is a little smaller, notably narrower and more slender; grooves 

 on forehead less distinct, pronotum narrower and longer, considerably 



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