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Pronotum is posteriorly as broad as elytra, anteriorly narrow- 

 ing, with rounded sides, corners, and posterior margins, its dor- 

 sum convex, with two pronounced punctures in front of middle, and a 

 large bristle-bearing puncture above the side-margin anteriorly, oth- 

 erwise smooth; elytra as long as pronotum, posteriorly they are to- 

 gether broadly obtuse-angularly undate; the abdomen smoothly taper- 

 ing; legs not long, the middle- and hind-tibiae spiniferous, tarsi 

 5-jointed, the fore-tarsal claw-joint robust, with long robust claws, 

 and as long as the preceding four short joints together, the other 

 first tarsal joints as long as the following three joints together. 



To this genus belong two species, distributed in North and Middle 

 Europe, and both are found in this country. The^live at the edge of 

 lakes, moors, and morasses in wet moss, particularly Sphagnum , bet- 

 ween roots of water-plants and under alluvium. 



Key to Species. 



1. Legs black with reddish knees and tarsi. L. 6-7 mm 



1. A. glaberrimus Herbst. 



Legs reddish-brown. L. 7-P mm 2. A. "^a.-^enschieberi Kiesw. 



1. A. glaberrimus Herbst. 



(Herbst. Fuessly Arch. 1784, 5. Hft., 151; 3anglb. Kaf. M. II, 

 381. - glabricollis Lac. Faun. Snt. I, 396; Erichs. Kaf. Mk. Br. I, 

 482; CJen. Spec. Staph. 519; Kraatz Ins. D. II, Muls. et Rey Brevip. 

 1877, 690). 



Not. unlike Euryporus picipes , but considerably smaller and more 



slender, and easily identified by the antennae. 



-7- 



'*)or produced. 



