282 OBSERVATIONS INTRODUCTORY TO THE CATALOGUE 01* 



Dromius melanocephalus, Calathus Jlavipes (fulvipes, GylL), 

 Colymhetes viireus, C. angustioi% Leiodes ahdominalis, Cateretes 

 rufilahris, Typhcea fumata, Philonthus micans, Stenus atratulus, 

 Homalota Gallicera, Tachyusa constricta, T. coerulea, Apion 

 nigritarse, Erirhinus scirrhosus, Galeruca Crat(xgi, and Phcedon 

 Armoracice. Some of these may yet be traced to a further dis- 

 tance^ but this will not impeacb. the accuracy of the conclusion, 

 that the majority of them attain their northern limit within the 

 district. Some Goleoptera, that are common to the district, with 

 the south and west, and the inland parts of Scotland, appear to 

 branch off from, or towards the western coast of the island, since 

 no trace of them has been found further to the north-east, these 

 are: — Badister (TrimorpJius) hmneralis, Argutor vernalis, 

 Bembidium 2^usillu7n, Haliplus conjiuensy Phcdacrus coruscus, 

 Phosj^huga sinuata, Oiceoptoma tkoracica, 0. appe^idicidata, 0. 

 dispar, Gampta lutea, Ips quadriguttata, Tyclius niger, Sinoden- 

 dron cylindricum, Melanotus fidmpes, Dasytes ceratus, Phloioplii- 

 lus Edwardsii, Helops striatus, Melandrya Garahoides, Magdalis 

 carhonariay Glytus Arietis,Pogonocherus Idspidus, Strangalia elon- 

 gata, Grypiocephalus Lineola, G. labiatus, and Glythra ^-2:)unctata.^ 

 Pachyta octomaculata, so frequent at Gibside, has, as yet, been 

 repeated in Scotland by only a single specimen, observed in the 

 east of Berwickshire. Melolontlia vulgaris^ another familiar 

 insect, has offered a few individuals in the lowlands of Berwick- 

 shire ; but there is a gap of fully fifty miles before it again appears 

 in the vicinity of Edinburgh. To the latter place, however, there 

 is uninterrupted communication with the west of Scotland, which 

 the species also frequents. In common with many of the MoUusca, 

 several Goleoptera reach a higher latitude on the western side of 

 the island than on the eastern. 



In the course of the Catalogue, the following species have, for 

 the first time, been characterized as British, viz. : — Stilicus rufipes, 

 S. a^iiis, Stenus atratidus, Bledius suhterraneus, Arpediu7n 

 hrachypterum, Omalium conformatum, Anthohium triviale, Myl- 

 l(jena gracilis, Oxypoda testacea, 0. lentula, Homalota nivalis, H. 



* Some of these results are obtained by a comparison with Mr. Murray's 

 " Catalogue of Scottish Coleoptera" now in the press. 



