1913.] ] 47 



I find that the following characters are sufficiently constant to 

 admit of the firm determination of the two species as they occur in 

 this country : — 



Front of the head regiilarly longitudinally striate throiig'hotit, like a sheet 

 of corrugated iron. Wings fvisco-hyaline, the veins brown. Point of 

 the middle lobe of the tedeagus forming a triangle of which the sides 

 are twice as long as the base hijhrida, L. 



Front of the head regixlarly longitudinally striate at each side, but in the 

 middle the strias form a net-work, and there are a few deep setigerous 

 punctures. Wings almost lacteo-hyaline, the veins, with the exception 

 of those next the costa and the median, nearly concolourous. Point of 

 the middle lobe of the iedeagus forming a triangle of which the sides 

 are siibequal in length to the base ; a circumstance which, combined 

 with the greater development of the flattened part of the sides, gives 

 to the apex of the organ a considerable resemblance to the nib of a 

 quill pen maritima, Latr. 



We certainly have two well-marked forms of C. hybrid a in this 

 country : in the one the shoulders are much wider in proportion to 

 the greatest wddth of the elytra, which therefore appear scarcely 

 widened behind, and in which the outer edge of the median band 

 spreads along the outer margin both in front and behind ; this I have, 

 without indication of locality, from Mr. Reston ; in the other the 

 shoulders are much narrower in proportion to the greatest width 

 of the elytra, wdiich therefore appear distinctly widened behind, and 

 in which the outer edge of the median band is not widened next the 

 outer margin ; this was sent to me from Freshfield, near Southport, 

 by the late Dr. Chaster. Probably these two forms respectively 

 represent the typical form and var. rlparia, Latr., as understood by 

 Continental writers ; but I am not now in a position to say definitely 

 whether this is so or not. 



In the Scottish Naturalist, 1875, the late Rev. T. Blackbui-n, 

 whom we may assume to have been well acquainted with the prevalent 

 opinion at that time, indicated that G. hyhrida occurred on the north 

 coasts of England, and C. maritima on the south coasts ; but the 

 occurrence of l)oth species in the same district was pointed oi;t by 

 Mr. W. E. Sharp (Coleopt. Lancashire and Cheshire, p. 16, 1908), 

 who found specimens of undoubted inaritima in the collection of 

 Mr. W. West, which had been taken at Birkenhead by M. Ragonot 

 about 1868 ; from which it is clear that although the Clcindela of the 

 Lancashire and Cheshire sandhills is now-a-days thought to be, and 

 most frequently is, C. hyhrida, the lange of the two species on the 



