96 CLAVICOUNIA. 



Dnlwich ; Wulton-on-Naze ; Kingsgatc ; Bognor, in profusion ; Newhaven ; Hustings ; 

 Shoreham ; Portliind and neighbourhood, plentiful by sweeping ; Glunvilles Wootoii; 

 it Rppears to be confined to the south-eastern and southern coasts. 



B. cotus, Saulcy (=13. Lefebvriei, Sharp's cat. 1st ed. nee Aube). This 

 species very closely resembles the preceding, but is of a somewhat longer 

 and narrower form, and has the abdomen less closely punctured ; it may 

 also be known by the fact that the first visible segment of the abdomen 

 is simple in both sexes and not tuberculate at apex in the male ; it is 

 very closely allied to B. Lefebvriei, and the specimens first taken in 

 Britain were referred to that insect. L. 1^ mm. 



On the banks of rivers, very local ; Scotland, Sol way district, in sandy places by 

 the Nith and Kew ; it appears to be peculiar to Scotland. 



B. haematica, Eeich. (emarginata, Forst. ; Braclnjgluta hcematica, 

 Thorns). Entirely rufous, with the palpi reddish-testaceous, elytra 

 brighter ; head triangular, smooth and shining, frontal foveae deep ; 

 antennae moderately long, last joint ovate ; thorax about as broad as long, 

 smooth and shining, widest before middle, rather gradually narrowed to 

 base, with three large equal basal foveae ; elytra nearly quadrate, scarcely 

 visibly punctured ; abdomen as long as elytra, margined, smooth and 

 shining ; legs reddish, tarsi paler. L. 1|^2 mm. 



Male with the trochanters and tibiae simple and the first visible dorsal 

 segment produced in a lobe on each side at apical margin, the space 

 between the lobes being more or less deeply emarginate ; this character 

 is variable, the lobes being sometimes rcmnded, and sometimes rather 

 sharp ; occasionally on the upper surface of each lobe there is a more 

 or less deep fovea, and sometimes the emargination between the lobes is 

 bidenticulate : Aube has named three varieties as sinnata, perforata, 

 and bidenticulata. 



Marshy places ; in flood refuse, &c. ; local, but occasionnlly abundant ; more fre- 

 quent about the banks of large rivers than elsewhere; Chatham, Barnes, Eglmm, 

 Staines, Walton-on-Thames ; Hastings; Glunvilles Wootton ; New Forest; Barnstaple, 

 Devon (recorded as taken in company with Formica flava and Myrmica rubra) ; 

 Salford Priors; Tewkesbury ; Hortlebury, Worcestershire; Repton; Church Stretton, 

 fec., Cheshire ; Stretford, near Manchester, at roots of trees in winter ; banks of 

 Mersey ; Northumberland district, banks of the Irthing, rare ; Scotland, very r.ire ; 

 lias only occurred in the Solwuy district at the estuary of the Nith below New Abbey ; 

 Ireland, Galway (Walker). 



B. juncorum, Leach. (Dierobiajuncorum, Thorns.). This insect in 

 colour and general appearance very closely resembles a small specimen of 

 the preceding, but may at once be known by having the central basal 

 fovea of the thorax minute and much smaller than the lateral ones which 

 are large ; its general form is shorter and broader in proportion, and the 

 lieadand thorax, especially the latter, are thickly and distinctly punctured ; 

 the elytra and abdomen also are finely punctured, the punctuation being 

 distinctly visible under a high magnifying power ; in the male the an- 

 terior trochanters are armed with a short spine and the intermediate ones 



