Acylophorus.'] staph\ltnid^e, 223 



A. g-labricollis, Boisd. {glaherrhnus, Hevbst., imlcher, Scriba). 

 Elongate, fusiform, .shining black, with a broad ring of an orange-red 

 colour at base of seventh segment of hind body, which becomes'' more 

 yellow after death ; head small, only half as broad as thorax ; antennje 

 about as long as head and thorax united, evidently thickened towards 

 apex, black, with the base of first joint, and sometimes of second 

 reddish, first joint very long, forming a scape, as long as the four 

 succeeding together, penultimate joints slightly transverse ; thorax 

 strongly narrowed in front, as broad behind as elytra, smooth and 

 shining, with four setigerous punctures on disc ; elytra about as long as 

 thorax, with long grey pubescence, strongly and rugosely punctured ; 

 hmd body gradually and rather strongly narrowed to apex, rather 

 strongly and somewhat rugosely punctured at the base of the front 

 segments, more finely and sparingly on the apex of these, and the whole 

 of the last segments; legs black, with the tarsi, and sometimes the 

 knees, reddish. L. 6-7 mm, 



lu very wet places ; found running and flying on the surface of the water amona- 

 weeds and submerged grass during the first hot days of spring; on tlie Continent it 

 has been obtained by wringing weeds from below the surface of tlie water ■ very 

 rare ; has only been found hitherto in this country at Merton, Surrey and Barnes by 

 Dr. Power, and near Richmond by Mr. Rye and Mr. Champion. ' ' 



The ciliated styles of the seventh and last segments are very lono- in 

 this species; in the male the segment of the armature appears to be 

 strongly and narrowly excised. 



EURVFORUS, Erichson. 



This genus at present only contains five species, two from Europe, one 

 from the Canaries, one from North America, and one from Sumatra ; 

 one species occurs in Britain, but it is very rare ; in general appearance 

 it somewhat resembles a large Quedius tristis or fuliginosus. 



E. picipes, Payk. Eather broad, depressed, and parallel, shining 

 black, with the mouth parts red ; head small, somewhat ovate ; antennje 

 about as long as head and thorax united, black, with the base, and more 

 or less of the apical joint, testaceous, first joint as long as the two 

 following, 4-10 gradually shorter, the penultimate joints being hardly 

 transverse; thorax narrowed in front, a little broader at base than 

 elytra, with three large setigerous punctures on each side of disc in 

 front ; elytra transverse, evidently shorter than thorax, strongly, rather 

 thickly, and rugosely punctured ; hind body as broad as elytra,°somewhat 

 rounded at sides and narrowed gradually and slightly from behind 

 middle to apex, not so thickly, but almost as strongly, punctured 

 as elytra; legs lighter or darker pitchy red Avith the tarsi lif-hter. 

 L. 8-10 mm. ° 



]\rale with the seventh ventral segment of hind body slightly but 

 distinctly sinuate in middle of apical margin, and the la.st° joint of 



