36 HYDROPHILID^. 



Newton Moss and Edenhall, Cumberland (Britten); S. Brent (de 

 le Garde); Ranworth, Norfolk (Champion); Ballycastle (Tomlin) ; 

 Mullimore, Co. Armagh (Johnson) ; Ayrshire and Renfrewshire, 

 Kirkcudbright and Wigtown (F. Balfour-Browne). Probably not 

 uncommon in various localities in England and Ireland. H. hritteni 

 is most closely allied to H. ripca^ia, Kug., but difiers from it in 

 being smaller and not quite so parallel, and in the structure of 

 the maxillary palpi of the male, the last joints of which are more 

 arcuate, and the penultimate joint is more dilated at apex ; the thorax 

 moreover is less strongly and evenly punctured, and the sides are not so 

 distinctly angled in the middle, and are less strongly contracted behind ; 

 in the female the last joint is proportionally shorter than in II. rijiciria. 



From //. nigrita, Ger., which it resembles in size, the species may be 

 known by its more parallel form, lighter colour, and the less strongly 

 and more difiusely punctured thorax, which is much less strongly 

 contracted behind : the curved last joint of the maxillary palpi of the 

 male will further suffice to distinguish it. 



Dr. Joy says that Ganglbauer, who at first could not identify this 

 species, afterwards sent him specimens of //. morio, Kies (a species 

 occurring in Eastern Europe) and suggested that //. hritteni might be 

 identical with it. H. morio certainly has the last joint of the maxillary 

 palpi arcuate, but is somewhat larger, and has the thorax more strongly 

 narrowed behind and the posterior angles right-angles and not obtuse. 



H. longior. Rev. Ann. Soc. Linn. Lyon, Ann. 1884, xxxi., 1885, 

 29; Ann. 1885, xxxii., 188(5, 91. Very closely allied to //. angustata, 

 Sturm, but easily distinguished by its longer and more parallel form, 

 and by having the thorax very distinctly and .sharply angled at the 

 sides in the middle ; the foiehead and thorax are, moreover, more 

 strongly and thickly punctured ; the species may at once be known by 

 the formation of the posterior tibia? in the male, which are dilated on 

 their inner side a little before apex, the dilatation being furnished with 

 three small teeth ; between the dilatation and apex they are again 

 narrowed and furnished sparingly with short ciliate hairs which are 

 easily rubbed ofl". L. 2-2^^ mm. 



I have taken the species in abundance near Brockenhurst with Dr. 

 Sharp ; it has also been found by Mr. de la Garde at Christow, near 

 Exeter, and Dr. Power's specimens, standing under //. augttstata, from 

 Polmont, Glasgow, must, according to Mr. Newbeiy% be referred to it : 

 it is evidently very widely distributed, and probably common. 



SPH^RIDIUM, Fabricius. 



S. scarabseoides, L., Syst. Nat. x. 25, var. lunatum, Fab., Ent. 

 Syst, i. 78. This variety has no red markings at the shoulders, 

 the elytra being black, with the exception of the bioadly testaceous 

 apex. 



Recorded by Mr. Donisthorpe in the Irish Naturalist for 1903, p. 61, 

 from the sand-hills at Rosbeigb, Co. Kerry. 



