Ilomalofa.] staphylinid^. 75 



K. lutelpes, Er. {Dilacra Jufei'pes, Thorns.). Tin's spocies rcsemT)les 

 H. littorea, but is ratlier larger and has the thorax longer and narrower, 

 the antennae longer, and the hind body a little less coarsely punctured ; 

 the colour is lilack with the elytra castaneous or ferruginous ; head 

 plainly narrower than thorax with a fovea on middle ; antennae pitchy, 

 elongate, slightly thickened towards apex, joints 2-3 of equal lengtli, 

 fourth much shorter than third, and plainly shorter than fifth, 5-10 

 nearly ei^ual in length but becoming grailually broader, all, however, 

 longer than broad, eleventh half as long again as tenth ; thorax narrower 

 than elytra, subquadrate, not narrowed behind, closely and finely 

 punctured, Avitli a small fovea before scutellum ; elytra rather longer 

 than thorax, together with all the segments of hind body closely and 

 finely punctured, the sixth not at all more sparingly than the preceding ; 

 legs yellow. L. 2| mm. 



Male with the antennae slightly more slender thin female, and the 

 fovea on head more elistinct ; seventh segment of hind body with apex 

 rounded in male^ narrowly emarginate in female. 



Banks of rivprs and marshy places; occasionally by sweeping' ; Sheerness, Croydon, 

 Mickleliam, Wiiiibledon, Siinderstead, Dngenhiim ; Toubriclge ; Wincliester ; Wiekeu 

 1- en ; Buvwell Fen ; Horning P'en ; Thornton Reservoir, Leicestershire ; formerly in 

 Hauimersnutb Marshes. 



The very dense punctuation of the hind body is the chief distinguish- 

 ing mark of this species. 



K. fallax, Kr. {Dilacra fallax, Muls. et Rey). A very peculiar 

 species that in punctuation and pubescence resembles an Oxypoda rather 

 than a Homalota ; colour brownish black, with the elytra ierruginous, 

 punctuation and pubescence extremely close and fine, so that the whole 

 upper surface appears dull ; head broad, almost as broad as thorax ; 

 antennae rather long, scarcely thickened towards apex, fusco-testaceous, 

 third joint a little shorter than second, 4-10 nearly equal in length, 

 but gradually -broader, eleventh nearly twice as long as tenth ; thorax 

 subquadrate, nearly as broad as elytra, with a shallow impression in the 

 middle in front of base from which proceeds a more or less obsolete 

 channel ; elytra only slightly longer than thorax, rather broader than 

 long, ferruginous brown with base darker ; abdomen very dull, apex 

 yellowish ; legs reddish testaceous with the first joint of posterior tarsi 

 nearly twice as long as second. L. 2|-2| mm. 



Male with the under plate of seventh segment much narrower and 

 more produced than in female. 



Under dead leaves, flood refuse, &c., in marshy places ; rare ; formerly not un- 

 common in Hiimmersniith Marshes and Netting Hill; Croydon; Mickleliani (l)unks 

 of Mole) ; Burford Bridge ; Dagenham, Esse.x ; also recorded from Devonshire. 



It is very probable that this species will form the typo of a distinct 

 genus Avhcn the group has been further studied. 



