Ilylnuf:.] adephaga. 199 



what shiny, densely and finely reticulate ; antennic red; each elytron 

 "with an elon^Mte testaceous patch about middle near the side, which is 

 indistinct and often obsolete ; posterior coxa? almost reaching inter- 

 mediate ones ; male with anterior and intermediate tarsi furnished with 

 more distinct palettes than the preceding species, from which it is 

 further di-stinguished by characters given above : it is also of a more 

 brassy colour than /. sulxeneus, and by this is distinguished from all the 

 other species except /. fuliginosiis, Avhich is at once known by the 

 broad testaceous margin of the elytra. Long. \\\, lat, 6 mm. 



Ponds, &c.; not uncommon, but rather local; Ijewisliam, Croydon, Woking and 

 other places ill the London district ; Walthamstow, Essex; Swansea; Soham, Cam- 

 liii(lp:i', and ten districts generally; Daventrv; Leominster; Stamford iJridge, York; 

 JS'orthumberlaud district, rare ; not recorded from Scotland. 



X. ater, De G. Oval, very convex, ]>lack with slight metallic reflec- 

 tion, under side pitchy ; antennte red ; legs more or less pitchy, posterior 

 pair darkest ; upper side flnely and densely reticulate, each elytron with 

 a more or less obscure pale dash behind middle, towards sides ; male 

 with the three basal joints of the front and middle tarsi distinctly 

 thickened and much compressed, apical ventral segment with a keel on 

 tlie middle of its hinder part, and longitudinally wrinkled on each side ; 

 female with this segment com})rcssed in middle, and so apparently 

 notched at the extremity. Long. 14, lat. 7| mm. 



Ponds, &c. ; widely distributed and, as a rule, common throughout tlie country ; 

 Scotland not common, in marshes, Lowlands, Tweed, Forth, Tay, Solway, Clyde ; 

 Ireland, local, near Dublin. 



I. obscurus, Marsh, Very like the preceding, but smaller, and 

 black without a trace of metallic reflection ; the reticulation of the 

 elytra is more obsolete at apex than in /. ater ; the apical ventral seg- 

 ment of male is only slightly rugose on each side of the raised keel 

 (whereas in /. ater it is disthictly rugose), and the extremity of this seg- 

 ment in the female ajipears less emarginate ; the tarsal hairs of tlie 

 male are less developed, and bear much smaller palettes. Long. 11^, 

 lat. G mm. 



Piiuds, &c. ; not uncommon and widely distributed, es])ecially iti the Midland-; and 

 south-east of England ; Scotland, rare. Lowlands, Tweeii, Forth, Clyde; Ireland, near 

 Ik'lfast aud Armagh. 



/. scciJentatus, Schitidte, is a variety of this species, distinguished by 

 tlie strongly dentate outer claws of intermediate tarsi of mule ; it ha« 

 been taken at Cambridge and near Liverpool, and in other localities. 



I. g-uttigrer, Gyll. Oval, convex, rather narrow, black withuul 

 trace of metallic rellection, elytra closely and tinely reticuhite with a 

 small testaceous spot on each, sometimes indistinct ; antejinsB red, legs 

 I'iti'hy ; male with front ami middle tarsi slightly thickened and 

 luinisli( d with moderately lung hairs liearing minute palettes ; outer 

 claw of hind feet a good deal shoiler than lli(> inner one, suinewhat 



