British Species of Homalota. 109 



Obs. — This species has very much the structure of H. 

 elongatula and its allies; but its very small size^ and its 

 facieSj associate it rather with the foregoing species. My 

 specimens agree entirely with examples of H. subtiUs- 

 sima, sent by Kraatz to the British Museum. 



Group III. Species of moderate size, witJi all the seg- 

 inents of the abdomen punctured, and the antennce slightly 

 thickened toivards the apex. (Species 13 — 19) . 



The species forming this group have much the habits 

 of the members of the genus Tachyusa, and are to be 

 found running about in company with them in muddy 

 places, in marshes, on the banks of rivers, and on the 

 coast. The species differ a good deal in appearance. 

 JB". plumhea has been described as an Aleoehara ; it has 

 much the colour and appearance of Aleocliara grisea, and 

 its allies, in company with which it is found. H. fallax 

 approaches very closely to Oxypoda. 



13. Homalota littorea. 



Nigra, antennis elytris anoque fuscis, pedibus fusco- 

 testaceis; antennis apicem versus leviter incrassatis; 

 capite subrotundato, thorace evidenter angustiore ; 

 thorace longitudine latitudine breviore ; elytris hoc tertia 

 parte longioribus, cum capite thoraceque subtiliter con- 

 fertim punctatis ; abdomine supra dense sequaliter minus 

 subtiliter punctate. Long. Ij lin. 



Mas; abdomine segmento 7° ventrali evidenter pro- 

 ducto, angusto, apice rotundato. 



Fern. ; segmento 7° ventrali latiore, apice medio vix 

 evidenter emarginato. 



H. Jluviatilis, Wat. Cat. (Kr. ? ?) . 



A rather shining and but little depressed species. 

 Antennae pitchy, mth the basal joint a little paler ; longer 

 than the head and thorax, moderately stout, a little 

 thickened towards the apex ; first and second joints mo- 

 derately long and stout ; third a little shorter than the 

 second, narrowed towards the base ; fourth shorter than 

 third ; four to ten differing but little from one another 

 in length, the first of them distinctly longer than broad, 

 the last of them about as long as broad ; eleventh joint 



k2 



