54 STAPHYLINID.^. 



P. spinifer, P. halticus, and P. nigriventris iu company, in one day, at 

 AV'eymouth. P. nigriventris is taken freely by Mr. Keys at Tregantle, 

 AVhitsand Bay, and is recorded by iSIessrs. Chaster and Sopp in the 

 Southport list as frequent on the shore in spring and autumn in empty 

 egg-capsules of Bnccinum undatnm, the common whelk : Boldoyle, Co. 

 Dublin (Kemp). It has also quite recently (1910) been recorded from 

 Dawlisb, Devon. 



DIGLOSSA, Haliday. 

 Mr. Champion (Ent. Mo. Mag. xxxv. (2 Ser. x.), 1S90, 264) points 

 out a discrepancy in my account of the species (Brit. Col. ii. 171), in 

 that I speak of D. mersa, Hal., as apterous in the table, and then after 

 description say that I have taken it on the -wing settling on large 

 pebbles itc. iu the sun at Ventnor, Isle of Wight. I cannot at this 

 distance of time remember, especially as thei-e were large numbers of 

 Homalota? etc. on the wing at the same time, but I have a strong idea 

 that there must have been both winged and apterous forms, as ISIr. 

 Champion suggests.* It is better, however, to adopt his table of 

 differences, but I prefer to keep to my own names, which are those 

 adopted in the last European Catalogue. 



Abdomen not, or very slightly, widening 



posteriorly, the sixth dorsal segment more 



sparsely punctured than those preceding ; 



antenna? piceous, paler at the base ; pro- 

 thorax feebly sinuate at the sides towards 



the base ; head, prothoras and elytra slightly 



shining ....... D, mersa, Halid. 



Abdomen widening to the apex of the sixth 



segment, with the dorsal segments closely, 



minutely punctate; antenntt ferruginous 



or f usco-ferrugiuous, paler at the base ; 



prothorax strongly sinuate at the sides 



towards the base ; head, prothorax and 



elytra opaque D.submarixa, /<n>?«. 



sinKatocoUis, Rey. 

 a'assa, Rey^ 



D. mersa occurs all along the southern coast — Southend, Sheppey, 

 Sandown, Ventnor, Studland (Dorset), Weymouth, Portsc;\tho, 

 Falmouth — as well as at Tenby, Cleethorpes, Hunstanton, the Forth 

 and Clyde districts of Scotland, Ireland, tfec. It appears to be much 

 the commonest species iu Britain. The second species has been taken 

 freely by Mr. Champion at Sheppey, and he gives as other localities, 

 VN^eymouth (Walker) and Altcar. Lancashire (Tomlin). In Mr. 



* This is borne out by Mr. Keys (Ent. Mo. Mas:, xlvi. (2 Ser. xxi.), I'JlU. 117). 

 vho records the capture of a winged and an apterous specimen of a species of 

 Diglossa at the same time and place; the species is not mentioned. 



